How many molecules are in 3.3 moles of ethane gas C2H6? Check your significant figures. A. 1.97 x 1024 molecules C2H6 B. 2.0 x 1024 moles C2H6 C. 2.0 x 1024 molecules C2H6 D. 2 molecules C2H6

Explanation:

Ni + 2KCl → 2K + Nicl2

It form

potassium and nickel chloride.

Answer:

Mitochondria

Explanation:

Glucose in an energy molecule contained in carbohydrate food substances. The end product of the digestion of carbohydrate is glucose which is broken down to produce energy.

The sequence of breakdown of glucose is as follows; In the first step, 6-carbon glucose is broken down into two molecules of  3-carbon pyruvic acid. This occurs in the cytoplasm of the cell. It is an anaerobic process.

In the second step which occurs in the mitochondrion, each of the molecules of pyruvic acid is now oxidized to carbon dioxide and water and energy is produced in the process.

Write the balanced chemical equation

Calculate the moles of

Na2CrO4

Use the molar ratio from the balanced equation to calculate the moles of

Ag2CrO4

Calculate the mass of

Ag2CrO4

mass of Ag2CrO4 produced is 124 g.

The mass of silver chromate are produced when 250. mL of 1.500 M Na₂CrO₄ are added to excess silver nitrate is 62.028g.

Mass of any susbtance will be calculated by using moles as:
n = W/M, where

W = given mass

M = molar mass

Relation between moles and molarity as:

M = n/V, where

M = molarity

V = volume

Moles of Na₂CrO₄ = (1.5)(0.25) = 0.375 mol

Given balanced chemical reaction is:

2AgNO₃(aq) + Na₂CrO₄(aq) → Ag₂CrO₄(s) + 2NaNO₃(aq)

From the stoichiometry of the reaction it is clear that,

2 moles of Na₂CrO₄ = produces 1 mole of Ag₂CrO₄

0.375 moles of Na₂CrO₄ = produces 1/2×0.375=0.187 mole of Ag₂CrO₄

Mass of 0.187 moles of Ag₂CrO₄ = (0.187mol)(331.7g/mol) = 62.028g

Hence required mass of Ag₂CrO₄ is 62.028g.

To know more about mass & moles, visit the below link:

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Answer:

234

Explanation:

so 3 x 3 x 26 =234

Answer:

The pH scale measures how acidic or alkaline — basic — something is. Your body works constantly to carefully control pH levels of blood and other fluids. The body's pH balance is also called the acid-base or acid-alkaline balance. The right pH levels are needed for good health.

Answer:

Claim 1- The evidence that supports my claim because Evidence Card b says “One man got sick, but his two children did not. He used water from Whip River. He used  the cube to heat the first pitcher of water, which he gave to his kids, and then reused the  cube without reheating for the second pitcher, which he drank himself.”    My first piece of evidence is that if you don't follow thee directions then something bad would happen

Explanation:

Answer:

increase

Explanation:

Answer:

Explanation:

Weathering occurs fastest in hot, wet climates. It occurs very slowly in hot and dry climates.

Answer:

labouring kits tub sagot non

Explanation:

games like that in England are not a good thing to do with them in the first half and we are in a kant state that we are going through a difficult situation that will happen and sex.

Answer:

Light waves are the fastest in existince.

Answer:

signed!!

Explanation:

mark me brainliest pls

Answer:

if it means i could help ppl across the world, then yes! sighned! i dont

have money so i cant do the fundraiser aYvY SORRY

Explanation:

Answer:

The world’s oceans are so big we thought for a long time that there was nothing humans could do to hurt them. Now we’re facing an imminent and global collapse of our fisheries, projected to happen as early as 2048, thanks to overfishing, wasteful fishing practices and massive overconsumption. But, there are a few key tried-and-tested solutions to overfishing that have been successfully implemented around the world. The trick is to scale these solutions up to a global scale, encouraging countries that have originally been resistant to helping and get them onboard, and supporting countries that don’t have the means to update their fishing policies themselves.

Hope it will help you

Answer: use big words

Explanation:

Answer:

7.27 grams

Explanation:

Format= starting amount (g)·(1 mol/molar mass)·(amount of wanted/amount of starting)·(molar mass of wanted/1 mol)

[tex]41.0 x \frac{1 mol}{17.031}x\frac{3 H2}{2NH3} x\frac{2.016}{1 mol} =7.27[/tex]

Answer

well it gets used

Explanation:

because it generates power through fission

Answer:

A. Natural Frequency

Explanation:

I took the test. (100%)

sorry I’m super late probably but the answer is A. Natural frequency!

Answer:

help with what? Let me know in the comments! :)

Explanation:

Answer:

Independent Variable: The thing in an experiment which is changed.

Dependent Variable: The thing in an experiment which is affected by the change. (In other words, it's affected by the independent variable.)

Control Variable: The other factors of the experiment that remain unchanged.

For example, say you want to do an experiment about the effects of water on plant height. So, the independent variable, or the thing that is changed would be the amount of water, and the dependent variable would be the plant height, as the plant height is directly affected by the independent variable. Lastly, for this to be a fair experiment, there must be control variables. For example, all of the plants should be put in a room with equal temperature, they should get the same amount of sunlight, etc.

I hope this answers your question- feel free to ask me if you need any more help.

Answer with Explanation:

Lol.. even i was confused before  .. so i learnt now ill help u :

Simple!

See... lets take simple expirament to explain:

My expirament is to verify if sunlight affects the growth of plants ...

So here :

My controlled variable : It is what is held constant.. So ur supposed to NOT it like everything else expect sunlight..(ex: water, soil, type of plant etc)

My Independent variable : Variable that is changed.... So this is wht  u ARE changing to make th expirament ... (for ex: here sunlight u will chanhe... u will put on in a dark room and a nother in the light..)  

My dependetn variabe:l Some thing that changes on is own..cause of the expiramen t... like the result ..(for ex: height , growth of plant etc)

I hope u  understood !!  :))

i just answered this question and it was actually 1,4,1,2

Answer:

D) kinetic energy

Explanation:

energy possessed by a body at motion is called kinetic energy.

Answer: 1. Endoplasmic Reticulum

Explanation:

it has passageways that carry proteins and other materials from one part of the cell to another

Answer:

Potable water is the water which is filtered and treated properly and is finally free from all the contaminants and harmful bacteria. ... Water is purified by various processes, some of these are by using UV filtered water purifier, by reverse osmosis, etc.

Explanation:

:) :)

Answer:

It is C

Explanation:

observation three and option three go togther

Answer:

group 1

Explanation:

chlorine donate electron

Chlorine will more likely to form bonds with the elements of group 1 as it has 7 valence electrons.

Chlorine is an element that is present in group 17. This family is also known as the Halogen family. The elements of this group will have seven electrons in their outermost shell. It has only one electron less to attain a stable noble electron configuration.

Thus, it will form bond more readily with Group 1 that has only one electron in its outermost shell.

Thus, correct option is a.

Find more information about Outermost electron here:

brainly.com/question/15908519

Answer:

SO2, HCI and NH3

Explanation:

these three compounds vary inversely with the temperature

Answer:

B absorption

Explanation:

because absorption is the transfer of energy carried by light waves to particles of matter