proper significant figure: 27.01 + 14.369

Answers

Answer 1

Answer:

put the bigger number on top then add

Explanation:

41.369


Related Questions

6. When you're fighting over a toy with your brother you might
exclaim this ...?


Answers

Hey, this is my toy so I get to use it.

Or, GIVE IT TO ME YOU LITTLE SH*T!

Either one does the trick but i recomemmnd the second option

newsela what is a chemical reaction

Answers

Answer:

A chemical reaction is a process in which the chemical bonds of a substance are broken or rearranged. One or more substances are formed with different properties because of this chemical reaction. Examples of chemical reactions are rust, combustion, and oxidation.

2. what is the factor in an experiment that a scientist wants to observe, which may change in response to
the manipulated variable; also known as a dependent variable​

Answers

I believe the answer is observation

what type of reaction is Pb + CuCl2 ---> PbCl2 + Cu​

Answers

The above reaction is a Single displacement reaction , in which lead (Pb) being more reactive displaces Copper (Cu) from its compound [tex](\mathrm{CuCl_2})[/tex] and forms Lead Chloride [tex](\mathrm{PbCl_2})[/tex].

[tex] \boxed{\mathrm{Pb + CuCl_2 \rightarrow PbCl_2 + Cu}}[/tex]

_____________________________

[tex]\mathrm{ \#TeeNForeveR} \: ☃[/tex]

Single displacement reaction

Balancee las ecuaciones químicas por el método de tanteo e identifique que tipo de reacción es: 1.1.- Cloruro férrico acuoso reacciona con carbonato de sodio sólido para formar carbonato férrico sólido y cloruro de sodio acuoso.

Answers

Respuesta:

2 FeCl₃(aq) + 3 Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + 6 NaCl(aq)

Explicación:

Consideremos la ecuación no balanceada que ocurre cuando cloruro férrico acuoso reacciona con carbonato de sodio sólido para formar carbonato férrico sólido y cloruro de sodio acuoso. Esta es una reacción de doble desplazamiento.

FeCl₃(aq) + Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + NaCl(aq)

Vamos a usar el método de tanteo. Empezaremos balanceando los átomos de C, multiplicando Na₂CO₃ por 3.

FeCl₃(aq) + 3 Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + NaCl(aq)

Luego, balancearemos los átomos de Fe, multiplicando FeCl₃ por 2.

2 FeCl₃(aq) + 3 Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + NaCl(aq)

Finalmente, obtendremos la ecuación balanceada, multiplicando NaCl por 6.

2 FeCl₃(aq) + 3 Na₂CO₃(s) ⇒ Fe₂(CO₃)₃(s) + 6 NaCl(aq)

Will lithium become a cation or anion?

Answers

Answer:

Lithium Cation is a monovalent cation that is metabolized much like sodium and is important in many cellular functions inside or on the surface of cells. lithium has a single valence electron that is easily given up to form a cation. Because of this, lithium is a good conductor of heat and electricity as well as a highly reactive element, though it is the least reactive of the alkali metals

Define An Atom.
Ty!!!​

Answers

Atom :

=> the smallest particle of a chemical element that can exist.

-------☆゚.・。゚ᵴɒƙυᴚᴀ_ƨȶäᴎ❀

Define Malleability.
Ty!!

Answers

Answer:

Malleability is a capability of making shaped or extended by hammering.

For example:

making a a ring of gold by hammering and heating gold.

U SEE WHAT IT SAYS~~~~~~~~
UwUwUwUwUwUwUwUwUwUwUwUwUwuWuWUWUWUWU

Answers

Uwuwuwuwuuwuwuwuwuuw


which method is suitable for collection a a
carbon dioxide.Explain​

Answers

Answer:

Carbon dioxide can be collected over water. Carbon dioxide is slightly soluble in water and denser than air, so another way to collect it is in a dry, upright gas jar.

Explanation:

PLS HELP FOR FINAL!!!!!!!!!!!!!!

Answers

Answer:

The answer is Ernest Rutherford.

Answer :

Ernest Rutherford

Hope I help

Good Luck

what is the use of connective tissue​

Answers

Answer:

Explanation:

Major functions of connective tissue include: 1) binding and supporting, 2) protecting, 3) insulating, 4) storing reserve fuel, and 5) transporting substances within the body. Connective tissues can have various levels of vascularity.

Answer:

Connective tissues can have various levels of vascularity.

Explanation:

no links pls it’s very unhelpful

Answers

answer : i don’t knowww :)

Right spelling:

Answer: I don’t know. :)

If 25.5g of sodium thiosulphate was dissolved in 40g of distilled water at 25°C,
I). Calculate the solubility of the solute in mol/dm^3
II). Calculate the solubility in g/dm^3

Answers

Answer:

Formula: Na2S2O3

we get solubility.

Divide the mass of the compound by the mass of the solvent and then multiply by 100 g to calculate the solubility in g/100g .

Solution given:

mass of sodium thiosulphate [m1]=25.5g

mass of water [m2]=40g

at temperature [t]=25°C

we have

solubility in g/dm^3 :[tex] \frac{solute in gram}{solvent in gram} *100[/tex]

=[tex] \frac{25.5}{40}*100 [/tex]=63.75g /litre=63.75g/dm³

solubility in g/dm^3 :63.75g/dm³

now

solubility of the solute in mol/dm^3=:63.75g/dm³/178=0.4 mol/dm³

Question is in picture! Due at 3:45!!!

Answers

the answer is D.2HCl

Where must the moon be in its orbit for the full moon phase to be visible?
A
exactly crossing Earth's orbit of the sun

B
on the side of Earth opposite the sun

C
between Earth and the sun

D
directly above one of Earth's poles

Answers

Answer:

A.EXACTLY CROSSING EARTH'S ORBIT OF THE SUN

The moon must be exactly crossing Earth's orbit of the sun for the full moon phase to be visible.

What is Full moon?

This is a situation where the Sun and the Moon are aligned on opposite sides of Earth with a corresponding illumination from the Sun.

It also occurs when the moon crosses the Earth's orbit of the sun and is denoted as option A.

Read more about Full moon here https://brainly.com/question/649027

#SPJ2

Which describes the greatest difference between gases and solids?
A. Solids feel softer than gases.
B. Gases are darker colors than solids.
c. Solids have stronger odors than gases.
D. Gases usually weigh less than solids.

Answers

Answer:

D)Gases usually weigh less than solids.

Answer:

D) Gases usually weigh less than solids

Explanation:

Gases don't have weight and solids do which automatically makes gases lighter because they don't have a mass like a solid.

How does heart failure affect the lungs?
o Carbon dioxide enters the lungs.
Too much oxygen enters the lungs.
Blood leaves the lungs.
o Fluid can build up in the lungs.

Answers

Answer:

Pulmonary oedema can be caused by lung disease, but when heart failure is more serious, the pressure of blood in the lungs builds-up, pushing fluid into the air sacs. This is how heart failure can lead to respiratory failure. People with pulmonary oedema will feel breathless, weak and unwell.


What is the molarity of 20.0 grams of NaOH dissolved in 1.50 L of solution?
(NaOH Molar Mass! 39.997 g/mol)

Answers

Molarity = moles/litre
mol/L=g/(g/mol) (which is g times mols per g)

will give you mols then divide that by L to get mol/L

so
M=g x mol/g x L
M=(20 x 1 x 1.50)/39.997

Please help me!! And please no links!!!!

Write a clear scientific explanation of how and why the water ended up on the mirror and not in the tub. Be sure to include scientific vocabulary (including any phase changes that occurred and the role of kinetic energy).

Vocabulary words-
Condensation
Gas
Heat
Kinetic energy
Liquid
Steam
Vaporization
Water vapor

Answers

Answer:

The water was hot it turned into steam then turned to water vapor and the got  attached to the glass and as the gas got attached the glass and it built up then became water again. As the vaporization was happening the gas was moving hence the energy building up.

Explanation:

Bcuz it turned to steam.

teaching self-regulation begins with helping a child

Answers

Answer:

hey jazmin! I have been on your friends list for a while on brainly, I thought I'd say hi.

What can you say about the forces between the particles of these gases)​

Answers

Answer:

Gas – In a gas, particles are in continual straight-line motion. The kinetic energy of the molecule is greater than the attractive force between them, thus they are much farther apart and move freely of each other. In most cases, there are essentially no attractive forces between particles.

Explanation:hopes this helps:)

all metals are minerals
a. true
b. false​

Answers

Answer:

B. False is the rite answer

PLESE HELP WILL GIVE BRAINLYESTY
Imagine that you are Francis Bacon. Write a short autobiographical statement that talks about who you are, where you’re from, and some of your important contributions.

Answers

Answer:

My name is Francis Bacon I am a English philosopher and statesman. i was born on January 22, 1561, at York House off the Strand, London. Today, Bacon is still widely regarded as a major figure in scientific methodology and natural philosophy during the English Renaissance. Having advocated an organized system of obtaining knowledge with a humanitarian goal in mind, he is largely credited with ushering in the new early modern era of human understanding.

Explanation:

Calculate the volume that 12.5 g of carbon dioxide gas will occupy at a temperature of 45 degrees Celsius and a pressure of 1.20 atm

Answers

Answer:

[tex]V=6.2L[/tex]

Explanation:

Hello there!

In this case, according to the given information, it is possible for us to realize that we need to use the ideal gas equation in order to calculate the volume of CO2 but firstly calculating the moles:

[tex]n=\frac{12.5g}{44.01g/mol}=0.284mol[/tex]

Then, we proceed with the ideal gas equation to solve for volume:

[tex]PV=nRT=\\\\V=\frac{nRT}{P}\\\\V=\frac{0.284mol*0.08206\frac{atm*L}{mol*K}*(45+273.15)K}{1.20atm}\\\\V=6.2L[/tex]

Regards!

what is an element in science​

Answers

You could put carbon or oxygen

Answer: Chemical element, also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.

Explanation: I hope that was helpful!

Copper is a product of the reaction that occurs when dry ammonia is passed over a sample of heated copper(II) oxide. The equation for the reaction is given below. 2NH3 + 3CuO --> 3Cu + 3H2O + N2 Calculate the mass of copper produced if 0.12 dm^3 of nitrogen is produced at room temperature and pressure (rtp). (Relative atomic mass of Cu = 64; One mole of gas occupies 24 dm3 at rtp​

Answers

Answer:

0.12 dm^3 x (1 mol/24 dm^3) = ? mols N2

mols Cu = ? mols N2 x (3 mols Cu/1 mol N2) = ?

Then g Cu = mols Cu x atomic mass Cu = ?

Measurements of half-life make radioactive isotopes useful for

Answers

The half-lives of certain types of radioisotopes are very useful to know. They allow us to determine the ages of very old artifacts. Scientists can use the half-life of Carbon-14 to determine the approximate age of organic objects less than 40,000 years old.

_____Is a non renewable fuel created from the remains of living organisms.

Electricity

Biofuel

Fossil fuel

Nuclear energy

Answers

Biofuel is the answer
Actually the answer is fossil fuel

A 5.0 mole sample of gas has 54 mmHg of pressure at 273K. What is the volume of the gas?


(Round your answer to the correct number of significant figures)

Answers

Answer:

here's the answer hope it helps

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