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3 years ago

What determines how fast a reaction happens?

1 answer:

6 0

Answer: What determines how fast a reaction happens is if one of the reactants is a solid, the surface area of the solid will affect how fast the reaction goes. This is because the two types of molecule can only bump into each other at the liquid solid interface, i.e. on the surface of the solid. So basically the larger the surface area of the solid, the faster the reaction will be.

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Explanation:

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A compound is found to contain 33.3%

kakasveta [241]

Answer: CaSO3

Explanation:Please see attachment for explanation

3 0

4 years ago

A container of carbon dioxide has a volume of 240 mL at a temperature of 22°C. If the pressure remains constant, what is the vol

astraxan [27]

Answer:

Volume of the $CO_{2}$ gas at 44°C is <u>258 ml.</u>

Explanation

here,

using Charles' law ,

$\frac{V}{T} =\frac{v}{t}$

where , V= initial volume v= final volume

T=initial temperature t = final temperature

Given - pressure is constant ,

so , putting the values -

V= 240ml

T= 22 + 273K = 295K (since converting celsius into kelvin that

is +273K )

v =?

t = 44+ 273K = 317K

Now , putting the given values in charles' law ,

$\frac{240ml}{295K} =\frac{v}{317K}$

240ml x317K = v x 295K (through cross multiplication )

v = $\frac{240ml\times317K}{295K}$

= 258ml .

thus ,<u> the volume of carbon dioxide in a container at 44°C IS 258ml .</u>

7 0

4 years ago

Which of these statements is true of plant cells?

pshichka [43]

Answer:

please put the full question

Explanation:

5 0

3 years ago

If a chemical reaction occurring at STP produces a change from 5 moles of gaseous reactants to 2 moles of gaseous product, what

lukranit [14]

If the number of moles decreases from 5 moles of gaseous reactants to 2 moles of gaseous product, the overall change in volume of the system is negative.

<h3>What is volume?</h3>

Volume refers to the space occupied by an object. Gases do not have a specific volume, rather they take on the volume of the container. We must note that the volume of given mass of gas is directly proportional to the number of moles present.

Hence, if the number of moles decreases from 5 moles of gaseous reactants to 2 moles of gaseous product, the overall change in volume of the system is negative.

Learn more about volume of a gas: brainly.com/question/22960215

5 0

3 years ago

What is the percent of ag in agno3

Trava [24]

Answer:

Ag = 46.08%

Explanation:

AgNO3

Ag = 47

N = 7

O3 = (16x3) = 48

47/ 47+7+48 =

47/ 102 x 100 = 46.08%

3 0

4 years ago

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