Give two properties that glass and plastic sometimes share.​

Answers

Answer 1

Answer:

Wall, cup, mug, plastic spoon

Explanation:

Because all of those are glass and it is important to us to make sure that if you are touching this brle careful

Answer 2

Answer:

Example aflask that is made in plastic,a plastic jag

Explanation:

they share some of the things in common such us

1.the height

2. the density


Related Questions

Carl makes the table below to determine the number of atoms of each element in the chemical formula 4Ca(ClO3)2.

A table with 3 columns and 2 rows. The first column labeled element has entries calcium, chlorine, oxygen. The second column labeled calculation has entries 1 times 4 , 1 times 2, 3 times 2. The third column labeled total atoms has entries 4, 2, 6.
What mistake did Carl make?

Answers

Answer:

calcium chloride oxide

Answer:

He did not multiply the chlorine and oxygen atoms by the coefficient 4

Explanation:

I just took the quiz


A_________is the distance from one compression to the next compression in a longitudinal wave. (Page 2 Vocabulary)
A.frequency
B.rarefaction
C.amplification
D.wavelength

Answers

Answer:

wavelength

Explanation:

Help plzzzz urgent !!!!!!!!!!!!!!

Answers

Answer: B < C < A

Explanation:

Ok so things that have the lowest pka are the strongest acids. the higher the pka the less acidic it is.

Where do convection currents occur?
A.
In areas with the same temperature
B.
In areas with different air pressures
C.
In areas with the same altitude
D.
In areas with different cloud types

Answers

Answer:

a because where the air travels for example a radiator

Answer:

C.

In areas with the same altitude

Explanation:

For this reaction, C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O, the ∆H is –2200 kJ. If two moles of C3H8(g) reacted with excess oxygen, what would be true?
A) 4400 kj of heat released into surroundings
B) 4400 kj of heat absorbed by system
C) 1100 kJ heat released into surroundings
D) 1100 kJ heat absorbed by system

Answers

A) 4400 kj of heat released into surroundings

Further explanation

Reaction

C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O, the ∆H is –2200 kJ

Reaction exothermic( ∆H=-, released heat to surrounding) and for combustion of 1 mole of C3H8

So for two moles of C3H8, the enthalpy :

[tex]\tt -2200\times 2=-4400~kJ[/tex]

How many atoms of each element are in one molecule of 2-heptanone

Answers

Answer:

A chemical structure of a molecule includes the arrangement of atoms and the chemical bonds that hold the atoms together. The 2-HEPTANONE molecule contains a total of 21 bond(s) There are 7 non-H bond(s), 1 multiple bond(s), 4 rotatable bond(s), 1 double bond(s) and 1 ketone(s) (aliphatic).

Answer:

Explanation:

CH3 provides 1 Carbon

C4 provides 4 carbons

COC provides 2 more

Total 7 Carbons

======================

COCH3 Provides 1 Oxygen

======================

CH3 provides 3 Hydrogens

C4H8 provides 8 hydrogens

COCH3  has 3 more hydrogens

Total 14 hydrogens

The answer should be B.

You should note that there are no brackets which means you only need to read the small numbers going down behind each element. You might have to read that sentence a could of times, but it is important to know.

If 30cm³ of 0.45 mol dm3 HCl reacted with NaOH, how many moles of HCl reacted?​

Answers

Moles HCl reacted : 0.0135

Further explanation

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

[tex]\large {\boxed {\bold {M ~ = ~ \dfrac {n} {V}}}[/tex]

Where

M = Molarity

n = Number of moles of solute

V = Volume of solution

So to find the number of moles can be expressed as

n = V x M

The volume of HCl 30 cm³=3.10⁻² dm³

Molarity of HCl = 0.45 mol/dm³

so moles HCl reacted :

[tex]\tt n=3.10^{-2}\times 0.45=0.0135[/tex]

(10 POINTS PLS ANSWER IF U KNOW)
Is the coloring of the peppered moths an example of competition, differential reproductive success, or inherited variation? Explain why.

Answers

Answer:

Competition

Explanation:

Peppered moths get their color in lieu to become the fittest among all so that they can survive easily. During industrial age, when pollution suddenly became high these moths changed their color through evolution in order to save themselves from their predators.

PLS GIVE BRAINLIEST

Help please! Tell me which one goes where.

Answers

Answer:

human-F

chicken-D

rabbit-E

tortoise-C

salamander-B

fish-A

Explanation:

hope this helped!!

I tried my best!!

please mark me as brainliest

HAVE A GREAT DAY <3

Answer:

D Tortoise

B Salamander

A Fish

C Chicken

F Human

E Rabbits

Explanation:

I Really have an Explanation

Which of the following is not a subatomic particle?
O Electron
O Neutron
O Nucleus
O Proton

Answers

Answer: C) Nucleus

The nucleus is not a subatomic particle, but rather made of the subatomic particles of protons and neutrons. An electron is also a subatomic particle, but it is not found in the nucleus. There are many other subatomic particles, but your teacher probably won't go over those terms until later.

Please help this is chemistry.

Answers

Answer:

C

Explanation:

the rest are trends except for Electronegativity

how is oxidation of copper seen on the statue of liberty similar to flammability and how is it different from flammability?

Answers

Answer:

Flammability and oxidation of copper are both chemical properties of a substance.Chemical properties are the properties that tells us how a substance can react with others.Flammability, oxidation of copper, rusting of iron, precipitation e.t.c are chemical properties of a substance.Flammability is one important chemical property of hydrocarbons.Oxidation reaction is peculiar to copper.

Explanation:

Imagine you're cooking dinner for a few of your friends. You decide to make a salad with homemade dressing. Why do you need to think about the polarity of the different ingredients in your salad dressing in order for it to turn out well? Answer in 1 to 2 paragraphs. (10 points) Think about how polar molecules only mix with other polar molecules and nonpolar molecules only mix with other nonpolar molecules.

Answers

Answer:15

Explanation:

What is the net force on a car stopped at a stop sign?

Answers

The car has 0 Net Force, for it is at rest and not moving

Atoms and ions are all the same.

Answers

Answer:

Yes they are

Explanation:

Describe two physical properties of matter and how those properties are measured.

Answers

Answer:

Density, solubility, melting point, boiling point, polarity, etc.

Density - Mass divided by volume = density (scale and beaker can be used)

Boiling point- Can be determined by the capillary method (where an inverted capillary is put in the liquid you’re finding out for and the liquid is heated)

The _____________ is similar to a vacumn cleaner because it cleans up cell waste.

a
endoplasmic reticulum
b
lysosome
c
mitochondria
d
cell wall

Answers

Answer is:
B. Lysosome
B, because the lysosomes used chemicals to break down and worn out cell parts

The first atomic structure *
Yes
NO

Answers

Answer:

Yes? Sry I’m kinda confused

Explanation:

Sry if I’m wrong

An example of a decomposer is a:

rabbit
mushroom
tulip

Answers

Answer:

mushroom

Explanation:

Fill in the coefficients that will balance the following reaction:

PbI4 +
CrCl3 →
PbCl4 +
CrI3

Answers

the equation balanced is

3 PbI4 + 4 CrCl3 → 3 PbCl4 + 4 CrI3

Answer:

3,4,3,4

Thank me later!

Explanation:

The Bohr model of the atom suggest that the protons and neutrons are found in the nucleus and the electrons orbit the nucleus much line planets around the sun. How is our modern model of the atom different from this model?

Answers

Answer:

D) The electrons move around the nucleus in an electron cloud

Explanation:

i just did it on usa test prep !

Which of the following is not likely to occur if a city loses its tax base due to economic decline? A. The city will have fewer police and fire fighters. B. City residents will have adequate health care and hospital services. C. The city will have a decline in public housing. D. Public and private buildings will decay.

Answers

Answer:

B.

City residents will have adequate health care and hospital services.

Explanation:

the correct answer for edg 2020

Answer:

B

Explanation:

A 100g of sample of a compound is combusted in excess oxygen and the products are 2.492g of CO2 and 0.6495 of H2O. Determine the empirical formula of the compound?

Answers

The empirical formula : C₁₁O₁₄O₃

Further explanation

The assumption of the compound consists of C, H, and O

mass of C in CO₂ =

[tex]\tt \dfrac{12}{44}\times 2.492=0.680~g[/tex]

mass of H in H₂O =

[tex]\tt \dfrac{2.1}{18}\times 0.6495=0.072~g[/tex]

mass of O :

mass sample-(mass C + mass H)

[tex]\tt 1-(0.68+0.072)=0.248`g[/tex]

mol of  C :

[tex]\tt \dfrac{0.68}{12}=0.056[/tex]

mol of H :

[tex]\tt \dfrac{0.072}{1}=0.072[/tex]

mol of O :

[tex]\tt \dfrac{0.248}{16}=0.0155[/tex]

divide by 0.0155(the lowest ratio)

C : H : O ⇒

[tex]\tt \dfrac{0.056}{0.0155}\div \dfrac{0.072}{0.0155}\div \dfrac{0.0155}{0.0155}=3.6\div 4.6\div 1\\\\\dfrac{11}{3}\div \dfrac{14}{3}\div \dfrac{3}{3}=11:14:3[/tex]

An exacuted glass vessel weighs 50 g when empty, 148g when filled with an liquid of density o.989/cc and 50.5 g whenfilled with an ideal gas760 mmHg and at 300k. Determine the molecular weights of gss.​

Answers

MW of gas : 124.12 g/mol

Further explanation  

Density is a quantity derived from the mass and volume  

Density is the ratio of mass per unit volume  

With the same mass, the volume of objects that have a high density will be smaller than objects with a smaller type of density  

The unit of density can be expressed in g/cm³ or kg/m³  

Density formula:  

[tex]\large {\boxed {\bold {\rho ~ = ~ \frac {m} {V}}}}[/tex]

ρ = density  

m = mass  

v = volume  

glass vessel wieight = 50 g

glass vessel + liquid = 148 ⇒ liquid = 148 - 50 =98 g

volume of glass vessel :

[tex]\tt V=\dfrac{m}{\rho}=\dfrac{98}{0.989}=99.1~ml[/tex]

An ideal gas :

m = 50.5 - 50 = 0.5 g

P = 760 mmHg = 1 atm

T = 300 K

[tex]\tt PV=\dfrac{mass(m)}{MW}.RT\\\\MW=\dfrac{m.RT}{PV}\\\\Mw=\dfrac{0.5\times 0.082\times 300}{1\times 0.0991}=124.12~g/mol[/tex]

Question 12 of 25
Which sentence describes all atoms of one element?
O A. They have the same number of protons.
OB. They have the same number of neutrons.
O C. They have the same number of isotopes.
D. They have the same properties.

Answers

Answer:

D They have the same properties.

Explanation:

The same no. of isotopes doesnot describes because isotopes have same symbol but didderent atomic mass.

An atom with which atomic diagram is most similar to calcium?

Answers

Answer:

C

Explanation:

Calcium is an element with a total of 20 electrons.

 It has 4 shells with a configuration of:

          2, 8, 8, 2

Option C is the most similar to calcium but the number of shells is not complete.

It still requires two more shells with 8 and two electrons respectively.

What is the specific heat of a substance that absorbs 2500 joules of heat when a sample of 100g of the substance increases in temperature from 10.°C to 70.°

Answers

Answer:

0.417 J/gºC

Explanation:

From the question given above, the following data were obtained:

Heat (Q) absorbed = 2500 J

Mass (M) of substance = 100 g

Initial temperature (T1) = 10 °C

Final temperature (T2) = 70 °C

Specific heat capacity (C) =?

Next, we shall determine the change in temperature (ΔT). This can be obtained as follow:

Initial temperature (T1) = 10 °C

Final temperature (T2) = 70 °C

Change in temperature (ΔT) =?

Change in temperature (ΔT) = T2 – T1

Change in temperature (ΔT) = 70 – 10

Change in temperature (ΔT) = 60 °C

Finally, we shall determine the specific heat capacity of the substance as follow:

Heat (Q) absorbed = 2500 J

Mass (M) of substance = 100 g

Change in temperature (ΔT) = 60 °C

Specific heat capacity (C) =?

Q = MCΔT

2500 = 100 × C × 60

2500 = 6000 × C

Divide both side by 6000

C = 2500 / 6000

C = 0.417 J/gºC

Therefore, the specific heat capacity of substance is 0.417 J/gºC

is silver tarnishing a physical change or a chemical change?​

Answers

Answer:

chemical

Explanation:

Some bronze objects tarnish to a dark brown color. Chemical properties can be identified by the changes they produce. The change of one substance into another substance is called a A piece of wood burning, an iron fence rusting, and a silver spoon tarnishing are all examples of chemical changes.

Explore the Build an Atom simulation. Identify one interesting function, quality, or graphic in the simulation.

Answers

Answer:

- Adding protons changes the identity of the atom, adding one moves from the right to left on the Periodic Table.

when molecules move they react by cooling down.
True or False?

Answers

Answer:

false

Explanation:

when molecules move they heat up

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Please help thank you I would greatly appreciate it if you would help me The region in a plant that is analogous to animal stem cells, and can develop into various types of tissues and organs, is the ______. Which of the following amendments address crime and punishment in the United States? i. 5th Amendment ii. 6th Amendment iii. 7th Amendment iv. 8th Amendment v. 9th Amendment A. i only B. ii and iv only C. i, ii, iii, and iv only D. ii, iii, iv, and v only did you know you can give houses beer? CRAZY right 13/14% of a quantity is equal to what fraction of the quantity? Rachael earned $42 for 3 1/2 hours at her job today. How much does Rachel earn per hour ? Plz help me with this what are chiral carbon how can air produce a pressureIN OWN WORDS NOT FROM GOOGLE In the Monroe Company, the following Job cards were totaled at the end of the month: Job 243 $5,750 Job 244 $4,980 Job 245 $3,675 Job 246 $4,250 Job 247 $5,100 Job 248 $3,800 Jobs 243 and 244 were in Finished Goods Inventory at the beginning of the month. Jobs 245 and 246 were in Work-in-process at the beginning of the month. Jobs 247 and 248 were started during the month. At the end of the month, Jobs 243 and 247 were sent to customers; jobs 245, 247, and 248 were completed and sent to finished goods. What is the cost of goods manufactured for the month Emilio wants to find 2/3 of 50. explain how emilio could estimate the answer The radius of a circle is 10 meters. What is the angle measure of an arc bounding a sectorwith area 150 square meters? Elizabeth goes to a restaurant where her bill comes to $18.50. She leaves the server a 22% tip. What is the total cost of going to the restaurant? compute the selling price of a bag of chips that has a cost of $0.75 per item. the store needs to generate a profit of $0.50 per item. please help! What is the relationship between velocity and acceleration? please help me with this question:) Does a reaction occur when aqueous solutions of ammonium carbonate and chromium(III) nitrate are combined? yesno If a reaction does occur, write the net ionic equation. Use the solubility rules provided in the OWL Preparation Page to determine the solubility of compounds. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed leave it blank. How many moles of CO2COX 2 will be produced from 97.0 g97.0 g97, point, 0, start text, space, g, end text of C3H8CX 3 HX 8 , assuming O2OX 2 is available in excess? Describe these different methods of sharing secret messages during the Revolutionary War:Invisible Ink:Secret Codes:Mask Letters: