Help help with the question below

Help Help With The Question Below

Answers

Answer 1
I would say A but I am not sure

Related Questions

una pieza de hierro de 25cm3 tiene una masa de 195g cual es su densidad?

Answers

Answer:

Pretend you are a TV producer. Think of ideas for new TV shows. Your objective is to create ideas that will be successful, regardless of whether this is quality programming or not. Think of an idea of a copy. Explain the basics of what this show will be like and what show it is copying. Explain why you feel this show will be popular. Think of an idea of a spin-off. Explain the basics of what this show will be like and what show it is spinning off from. Explain why you feel this show will be popular. Think of an idea for a TV show that falls into one of the genre categories listed in the genre chart. Describe the basics of the show and how it falls under the genre’s expectations for characters, plots, and aesthetics. Explain why you feel this show will be popular.

PLEASE HELP
The basic laws of Mendelian genetics explain the transmission of most traits that can be
inherited.
True
False

Answers

Answer:

True

Explanation:

Which of the following is NOT a chemical reaction?
Select one:

a.
Hydrogen and oxygen combine to make water

b.
Ammonia breaks up into nitrogen and hydrogen

c.
Ice melts to form water

Answers

the answer you’re looking for is “C”

Work sheet science pls help

Answers

Answer:

1. -> D

2. -> E

3. -> G

4. -> A

5. -> H

6. -> B

7. -> C

8. -> J

9. -> F

10. -> I

Explanation:

I hope this helps you!

Solutions
Which statement is true of pure substance

1. They may contain one type of atom or one type of molecules.
2.they can only contain one type of molecules.
3.they can contain different types of atoms and molecules.
4.they can only contain one type of atom

This is science btw

Answers

Answer:

4

Explanation:

cuz pure substance contain one type of atom,molecule,or cpd.

2 is true but it have wrong grammar,if it contain only one type it must be^^molecule^^

275 KJ of energy was transferred to water at 15c. Calculate the mass of water that can be brought to its boiling point

Answers

Answer:

need points rn sorry bro hope u get ur answer

Explanation:

HELP!!!

Water boils in an open pot at 100 °C, but in a pressure cooker it can boil at 116 °C.

Describe what happens to the gas particles inside the pressure cooker as the pressure increases.

Explain whether the diagram Francisco drew is correct for the water particles in an open pot at 100 °C as well as those in the pressure cooker at 116 °C.

Identify which water particles have more energy, those in the open pot or those in the pressure cooker.

Explain why Francisco should use a pressure cooker to warm the jars of vegetables. Include a description of the behavior of the gaseous and liquid particles in the pressure cooker in your explanation.

PLEASE GIVE ME AN ANSWER TO EACH ONE IF YOU CAN.

Answers

Answer:

A pressure cooker looks like a regular pot but has a modified lid that locks on over a rubber gasket to create a seal. The cooker works by raising the temperature of boiling water, thereby speeding up the time it takes to boil, braise, or steam. To use a pressure cooker, you put the food in the pot with some liquid-usually a minimum of 2 cups to build up sufficient steam pressure. Once the lid is locked in place and the cooker is set on high heat, steam develops in the pot and can’t escape. The trapped steam increases the atmospheric pressure inside the cooker by 15 pounds per square inch (psi), or 15 pounds above normal sea-level pressure. At that pressure, the boiling point of water is increased from 212°F to 250°F. This higher temperature is what cooks food faster. Once the cooker has reached full pressure, usually indicated by a gauge or pop-up rod on the lid, a release valve opens, letting out steam in a regulated flow to maintain a constant temperature inside the pot.

Explanation:

What is the mass of 1 mol of 0 atoms to three significant figures?

Answers

Answer:

16.0 gms

Explanation:

what is the mass of 1 mole of O atoms to 3 significant figures

    go to your periodic table.......O is element  8 and has an atomic mass of 15.999.  to 3 significant figures, this rounds to 16.0

1 mole is the molar mass in grams

so 1 mole of O atoms has a weight of 16.0 gms

how can teh human body looose heat? (conduction, convecion, radiation) and WHY

Answers

Answer:

Radiation and conduction

Explanation:

The human body lose heat by these two ways, because everything that touches our bodies and is in a temperature below us will receive part of our heat (conduction), and you can figure out that we lose heat by radiation because a human bright in a heat cam

Whether a hydrogen-based energy system is environmentally cleaner than a fossil fuel system depends on ________. the car driven governmental incentives for research the amount of fossil fuels that are invested in long-term storage the source of oxygen used for the process the source of energy used to produce the hydrogen

Answers

A hydrogen energy system is made up of hydrogen production, transportation, storage, utilization etc. Whether a hydrogen-based energy system is environmentally cleaner than a fossil fuel system depends on the source of energy used to produce the hydrogen.

Hydrogen fuel cells often makes electricity by using  hydrogen and oxygen atoms. The hydrogen is said to reacts with oxygen across an electrochemical cell.

Hydrogen is known to carry some amount of energy carrier and can also deliver or store a large amount of energy. Hydrogen is often used in fuel cells to generate electricity, or power and heat.

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which compound should have the largest lattice energy?

Answers

Answer:

From the given compounds MgO has the highest lattice energy.

Which shows the general structure of a carboxylic acid?
O A. R
O-R
R
O R
B. R-O-R
C. R-OH
OD ROH

Answers

The general structure of a carboxylic acid is shown by option D.

In organic chemistry, a carboxylic acid is an organic acid that consists of a carboxyl group connected to an R-group. the overall components of carboxylic acid are R−COOH or R−CO₂H, with R referring to the alkyl, alkenyl, aryl, or other institution. Carboxylic acids arise broadly.

A carboxylic acid is a natural compound that incorporates a carboxyl group (C(=O)OH). the general formulation of a carboxylic acid is R–COOH, with R referring to the relaxation of the molecule. A carboxylic acid may be the concept of a mixture between functional corporations: an alcohol institution, related to hydrogen certain to oxygen, which attaches to a carbonyl institution, involving a carbon double sure to oxygen.

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Please help me, I'm stuck and I don't know how to do it.

How many atoms are there in 7.02 g Si ?

Answers

Answer:

1.51e23 atoms

Explanation:

First, using the molar mass of Si (28.1 g/mol), determine the # of moles of Si we have. Then use Avogadro's number (6.022e23 atoms = 1 mol) to convert the # of moles to the # of Si atoms.

(7.02 g Si)([tex]\frac{1 mol}{28.1 g}[/tex]) = 0.250 mol Si              

(0.250 mol Si)([tex]\frac{6.022*10^{23} atoms }{1 mol}[/tex]) = 1.51e23 atoms    

The atomic mass of Silicon (Si) is 28.09 g/mol. The no. of atoms present in 7.02 g of Si is 1.46 × 10²³.

What is a mole?

Any substance containing  6.022 × 10²³ atoms is called one mole of that substance.  The no.of moles can be calculated by dividing the given weight by the atomic mass of the substance.

Atomic mass of Si = 28.09 g/mol

      Given mass    = 7.02 g.

       No.of moles  = 7.02 g/ 28.09 g/mol

                             = 0.24 moles

One mole contains  6.02 × 10²³ atoms. Thus 0.24 mole of Si contains  6.02 × 10²³ × 0.24  = 1.46 × 10²³ atoms.

Hence, no.of atoms present in 7.02 g of Si is 1.46 × 10²³ .

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Two chemicals, Z and X react completely to form a product, Y. If 8.7 grams of x react to produce 19.5 grams of Y, how many grams of Z must have reacted to form this much product?

Answers

Answer:

Z= 10.8

Explanation:

The simple formula Z + X = Y can solve this problem. Since we are given that,

X= 8.7 GramsY= 19.5 Grams

Then we can just substitute the actually values for the letters.

Z + 8.7 = 19.5

From here, we can just do simple math to find the answer.

Z + 8.7 - 8.7 = 19.5 - 8.7

Z = 10.8

So, 10.8 grams of Z reacted to form the product.

In the reaction below the total mass of calcium in the reactants is 40. What is the total mass of calcium in the products?

Answers

Answer:

40

Explanation:

The total mass of calcium in the products is 40

What is the total mass number?

The mass number (represented by the letter A) is defined as the total number of protons and neutrons in an atom. Consider the table below, which shows data from the first six elements of the periodic table. Consider the element helium. Its atomic number is 2, so it has two protons in its nucleus.

How do you find the mass number?

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

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What structural characteristic do all of the atoms within a group (vertical columns) have in common?

Answers

Answer:

The vertical columns (groups) of the periodic table are arranged such that all its elements have the same number of valence electrons. All elements within a certain group thus share similar properties.

hope this helps

Explanation:

Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements.

most transition metal ions contain partially occupied ________ subshells.

Answers

they contain d subshells

what is air pressure? In your own words

Answers

Answer:

The amount of force applied on an object that is moving in motion

Explanation:

the Periodic Table •
Class
Key Terms
Key Terms Ch. 4
Use the clues to help you unscramble the Key Terms from the chapter. Then put the
numbered letters in order to find the answer to the riddle.
Clues
Key Terms
1. A fast-moving electron
given off by a nucleus
during radioactive decay. tbaerlpiaect
2. A term used to describe a
material that can be pounded
into shape
llbeealam
3. The process of oxygen
reacting with a metal to
form rust
4. A particle in the atomic
nucleus that carries no
charge
5. A horizontal row across the
2
rsoooiner
3
ouetnrn
periodic table
roiedp
6. Substance that can only
6
conduct electric current
under certain circumstances. otmidsceuncro
7
7. A term used to describe a
material that can be drawn
into a long wire
lecuitd
8 9
8. Radioactive isotope that can be
followed through a chemical
reaction or an industrial
process
aerrtc
9. The elements in Group 18
of the periodic table
nreti ssgea
11 12
10. The very small center core
of an atom
13
10
cuunsle
Riddle: What chart shows the repeating properties of elements?
Answer:
1 2 3 4 5 6 7 8 9 10 11 12 13

Answers

Answer:

your question too long did not read all

Explanation:

Which electromagnetic wave type has frequencies higher than the violet of visible light?

Answers

Answer:

Ultraviolet means “above violet.” The electromagnetic frequencies of ultraviolet radiation (UV) extend upward from violet, the highest-frequency visible light.

hope this helps

1. (8.5d) A compound has a formula Mg:(PO.). Which best describes the atoms that make up this compound?

A.

B.

Atom

Magnesium (Mg)

phosphorus (0)

Oxygen (0)

Number

2

1

4

Atom

Magnesium (Mg)

Phosphorus (P)

Oxygen (0)

Number

6

2

8

C.

Atom

Magnesium (M)

Phosphorus (2)

Oxygen (0)

Number

3

4

2

D.

Atom

Magnesium (Mg)

Phosphorus (P)

Oxygen (0)

Number

3

2

8

Answers

Answer:(8.5d) A compound has a formula Mg:(PO.). Which best describes the atoms that make up this compound? A. B. Atom Magnesium (Mg) phosphorus (0) Oxygen (0)

Explanation:

what is the scientific name for the layers of gas that surrounds the earth ?

a . biosphere

b . atmosphere

c . lithosphere

d . hydrosphere


PLEASEE ANSWER ILL GIVE U BRAINLYEST ASPAAAAPP

Answers

Answer:

Hey mate.....

Explanation:

This is ur answer.....

b. Atmosphere

An atmosphere is the layers of gases surrounding a planet or other celestial body. Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases.

Hope it helps!

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An aqueous solution of nitrous acid hno2 has a ph of 1. 96. The ionization constant of this acid is 5. 0 × 10−4. How much nitrous acid was used to prepare one liter of this solution?.

Answers

The number of moles of nitrous acid used to prepare the solution is 0.0021 moles.

pH of the HNO2 solution =  1. 96

Concentration of the HNO2 solution = Antilog(-1.96) = 0.011 M

We have to set up the ICE table as follows;

         HNO2(aq)   ⇄ H^+(aq)  +   NO2^-(aq)

I      0.011                    0                 0

C     -x                         +x               +x

E     0.011  - x              x                  x

The dissociation constant of the acid is 5.0 × 10−4

Hence;

5.0 × 10−4 = x^2/ 0.011  - x

5.0 × 10−4(0.011  - x ) = x^2

5.5  × 10^-6 - 5.0 × 10^-4x =  x^2

x^2 + 5.0 × 10^-4x - 5.5  × 10^-6 = 0

x= 0.0021 M

The concentration of the acid (H^+) in the solution is 0.0021 M. The number of moles of the acid is obtained from;

0.0021 M × 1 L = 0.0021 moles

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How does covalent bonding take place?
A. A nonmetallic element like Fluorine is attracted to a metallic element like
Sodium.
B. A metallic element like Sodium transfers an electron to a non-metallic element
like Fluorine.
C. Two or more non-metallic elements share electrons to attain stability.
D. Two or more non-metallic elements of the same kind form strong forces of
attraction.

Answers

The answer is C :) the nonmetals share the electrons! They don’t gain nor lose :0

Imagine a basketball filled with liquid water.Would the basketball still hold the same number of molecules? Can you use
22.4 L/mol as the molar volume for liquid water

Answers

Answer:

Yes !

Explanation:

The ball will have more molecules.

a basketball filled with liquid water. yes we use 22.4 L/mol as the molar volume for liquid water.

what are the properties of water ?

Water is the chemical substance having chemical formula H2O, one molecule of water consist of two hydrogen atoms which are covalently bonded to a single oxygen atom.

The physical property of Water are, it  is a colorless and tasteless liquid,  have extensive hydrogen bonds resulting in unusual properties in the condensed form.

This also have high melting and boiling points. As compared to other liquids, water has a higher specific heat, thermal conductivity, surface tension, dipole moment, etc.

Water is a great solvent and  helps in the transportation of ions and molecules required for metabolism, has high latent heat of vaporization helps in the regulation of body temperature.

It is Amphoteric nature can act as  both acid and base  means that it is amphoteric in nature, it is Electropositive elements which reduce water to hydrogen molecule and it is the source of hydrogen.

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What is the theoretical yield of sodium chloride when 8.3 g of sodium is reacted with 4.5 g of chlorine? 2Na(s) + Cl2(g) → 2NaCl(s)

Answers

The theoretical yield of sodium chloride when 8.3 g of sodium react with 4.5 g of chlorine is 3.30 g

We'll begin calculating the masses of Na and Cl that reacted and the mass of NaCl produced from the balanced equation.

2Na + Cl₂ —> 2NaCl

Molar mass of Na = 23 g/mol

Mass of Na from the balanced equation = 2 × 23 = 46 g

Molar mass of Cl₂ = 2 × 35.5 = 71 g/mol

Mass of Cl₂ from the balanced equation = 1 × 71 = 71 g

Molar mass of NaCl = 23 + 35.5 = 58.5 g/mol

Mass of NaCl from the balanced equation = 2 × 58.5 = 117 g

SUMMARY

From the balanced equation above,

46 g of Na reacted with 71 g of Cl₂ to produce 117 g of NaCl

Next, we shall determine the limiting reactant.

From the balanced equation above,

46 g of Na reacted with 71 g of Cl₂

Therefore,

8.3 g of Na will react with = (8.3 × 71)/46 = 12.81 g of Cl₂

From the calculation made above, we can see that a higher amount (i.e 12.81 g) of Cl₂ than what was given (i.e 4.5 g) is needed to react completely with 8.3 g of Na.

Therefore, Cl₂ is the limiting reactant and Na is the excess reactant

Finally, we shall determine the theoretical yield of NaCl by using the limiting reactant (i.e Cl₂)

From the balanced equation above,

71 g of Cl₂ reacted to produce 117 g of NaCl.

Therefore,

4.5 g of Cl₂ will react to produce = (4.5 × 117)/71 = 3.30 g of NaCl

Thus, the theoretical yield of NaCl produced is 3.30 g

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Answer:

The correct answer is 7.4 g NaCl

Explanation:

A sample of uranium absorbs 27.16 kJ of energy and changes temperature by 347.6 C. If 27.17 J/(1C * 1 mole) for uranium, the how many mole of U are in the sample?

Answers

Answer:

Q = 2.877 mole (4 sig. figs.)

Explanation:

Using Q = m·c·ΔT => m = Q/c·ΔT

Q = 27.16 Kj

c = 27.17 j/g·°C = 0.02717 Kj/g·°C

ΔT = 347.6 °C  

Q = 27.16 Kj/(0.02417j/mol·°C)(347.6°C) = 2.87.6869965 mol (calc. ans.)

= 2.877 mole (4 sig. figs.)

Helium (he) has two valence electrons, and these electrons are located in the 1s subshell. Without using the periodic table, in which group and period is helium located?.

Answers

helium is in group 8 and period 1

How are mitosis and meiosis similar? How are they different? Provide 1 way the two processes are the same and 2 ways the 2 processes are different.

Answers

Answer:

Similar: both processes of cell division; both processes take place in the nucleus of the cell

Different: mitosis divides into 2, meiosis divides into 4; one is the division of body cells and the other is of specifically sex cells

Explanation:

https://byjus.com/biology/mitosis-and-meiosis/

^ this has more info!

How do you find the frequency of a recorder?

Answers

Answer:

Modern recorders are most commonly pitched at A=440 Hz, but among serious amateurs and professionals, other pitch standards are often found. For the performance of baroque music, A=415 Hz is the de facto standard, while pre-Baroque music is often performed at A=440 Hz or A=466 Hz.

Explanation:

Other Questions
The perimeter of the table shown is 16 feet. Write an equation in the form px+q=r to solve for x. Name the method that used to separate the components of petroleum oil. What was the Council of Trent? What is countercurrent multiplication?. Given a variable that contains mixed collection types, update the provided function to display the first inital and last name of the instructor:Update the function to accept a list and the name of the instructor you wish to find.Update the function to reformat the name of the instructor and return it back to the calling program.If the instructors name is entered as John Smith then the function should return back J. SmithIf the instructors name is entered as Tracy Anne Rios then the function should return back T. RiosIf the instructors name is entered as Jackson then the function should return back JacksonAdd in any exception handling for the following scenarios:Exceptions related to accessing the list or dictionary should output the message: Instructor not found.All other exceptions should output the message: An error has occurred.Test to ensure the program passes the provided test cases found in the TESTS.md fileHintsYou may only use a try/except block, no if statementsFigure out how to use only one return in the methodTests.md:InputAmy WilliamsOutputA. WilliamsCase 2InputSarah Jane SmithOutputS. SmithCase 3InputThomas TomOutputInstructor not found.What i have so far#!/usr/bin/env python3# Discussion 10.2: Collection Type Exceptions# Task 1. Modify Functions for Namesdef get_initial_name(initials, name): list = instructor_name.split(' ') # this function returns a list try: initial = list[0][0] name = list[-1] f_name = initial + '. ' + name except: return 'Instructor not found'# DO NOT MODIFY BELOWif __name__ == "__main__": courses = [ { "name": "Amy Andrews", "courseName": "Math I", "units": 3 }, { "name": "Bryan Bravo", "courseName": "English I", "units": 3}, { "name": "Charles Chavez", "courseName": "Physics I", "units": 3 }, { "name": "Daniel Diaz", "courseName": "Chemistry I", "units": 3 }, { "name": "Edgar Allen Elam", "courseName": "Math II", "units": 3 }, { "name": "Felicia Farr", "courseName": "Music I", "units": 3 }, { "name": "GarthGarcia", "courseName": "Physical Education I", "units": 3 } ] # Take Input instructor_name = input("> ") # Output the Result print(get_initial_name(courses, instructor_name)) solve pls brainliest Which of the following evidence was used by the american temperance society in the excerpt to explain why people would join the temperance movement?. Which wave characteristic determines color? A. The number of waves that pass per second B. The lowest point on the wave C. The highest point on the wave D. The measurement from crest to crestWILL GIVE BRAINLY :3 AHHHHHHHHHHHH please help me!!)) This comparison using like is an example of _______.The train shot through the night like a bullet.personification a rhymea similea metaphorI forgot about this :,) Long-term potentiation is the ________ includes the thalamus, hypothalamus, and epithalamus. The following dataset represents the number of minutes a student listens to music in a week for 50 students, sorted andarranged in rows of 5. What is the 80th percentile of the data? please answer fast its important Give an two sentence that talk about this topic sentence: Ancient Egyptians believed the gods were very important to their lives. s, le muestro el abrigo. s, me muestra el abrigo. what is the formula for calculating midpoint WILL MARK BRAINLIEST!!!!!!! 40 PTS PLEASE HELP!!!!You are a member of the Senate in the state of Washington. You are going to submit an amendment to the states constitution. But whats the amendment about? Come up with an amendment that you think should be proposed. Is there a right that is very important to you that you think should be protected by the government? Be careful not to select a right that is already covered by the Washington or US Constitution! Make sure to explain what the right is and why you think its important. You may need to do some light research on the Internet to help you answer this question fully. Your answer should be about 75-100 words in length. Find the value of z What is the answer to 4/5w = 8 HELP PLS ASAPPPPPPP Please help me with this I am not good at math