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Gnom [1K]
3 years ago
12

List 3 examples of when it is helpful to have a high reaction rate and 3 examples of when it is helpful to have a low reaction r

ate.
Chemistry
1 answer:
antoniya [11.8K]3 years ago
7 0
3 of high reaction rate
<span><span>- </span>High reaction rate used in producing energy for cares via fuel. The reaction is done through heat (If we increase the temperature, chemical reactions go faster)</span>
<span><span>- </span>Using heat through cooking</span>
<span><span>- </span>A exercise like running, jogging, pilats</span>

3 of low reaction rate.
<span>- Low body temperatures slow down metabolism. In fact, warm-blooded animals regulate body temperature so that their biochemical reactions run at the correct rate. </span> <span><span>·        
</span>- A fire being put down by water
</span><span><span>- Charging a cellphone</span></span>
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Determine the molecular formula for the compound with a molar mass of 46.08 g/mol and the following percent compostion:
kramer

Answer:

      \large\boxed{\large\boxed{CH_6N_2}}

Explanation:

<u><em>1. First determine the empirical formula.</em></u>

a) Base: 100 g of compound

             mass       atomic mass      number of moles

                g                g/mol                    mol

C           26.06            12.011             26.06/12.011   = 2.17

H           13.13              1.008              13.13/1.008    =  13.03

N           60.81             14.007            60.81/14.007 = 4.34

b) Divide every number of moles by the smallest number: 2.17

mass       number of moles        proportion

C                  2.17/2.17                         1

H               13.03/2.17                         6

N                4.34/2.17                          2

c) Empirical formula

      CH_6N_2

d) Mass of the empirical formula

      1\times 12.011g/mol6+6\times 1.008g/mol+2\times 14.007g/mol=46.07g/mol

<u><em>2. Molecular formula</em></u>

Since the mass of one unit of the empirical formula is equal to the molar mass of the compound, the molecular formula is the same as the empirical formula:

                   CH_6N_2

6 0
3 years ago
Student
Zigmanuir [339]

Answer:

jskixiii98777277888

Explanation:

jchhh

8 0
3 years ago
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In the chamber below, the volume is 20.5 L. What would the volume be if the temperature is increased to 500 K, the moles are red
grandymaker [24]

Answer:

C. bc I ssid

Explanation:

0+0+0+0+0+0=00

3 0
3 years ago
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Select the expression that is equivalent to 3x105+5x108.
VashaNatasha [74]
When you're dealing with scientific notation (especially when you use an order of operations such as adding on it), it's important to know that you cannot add 10^2 to 3 (for example).

(3 x 10^5) + (5 x 10^8)

When adding exponents, you're only adding the exponents together and not changing the original number (10).

5 + 8 = 13

We now have a sum of 3x5 x10^13

Multiply 3 by 5 to get your new expression.

3 x 5 = 15

15 x 10^13 is what we're left with.

Your answer is A.)

I hope this helps!

8 0
3 years ago
Select all that apply to organic compounds. Organic compounds are only found in living things. Organic compounds can be synthesi
Andreyy89

Answer:

Correct options:

Organic compounds can be synthesized in a laboratory setting.

There are hundreds of thousands of organic compounds.

Explanation:

1) Organic compounds are only found in living things: False

Organic compounds are mainly carbon based. Although organic compounds are derived from living things like plants and animals, non-living things like sedimentary rocks are also rich in carbon.

2) Organic compounds can be synthesized in a laboratory setting: True

There are four major categories of organic compounds: carbohydrates, proteins, lipids and nucleic acids all of which can be synthesized in a laboratory.

3) Organic compounds contain carbon: False

Organic compounds are identified by the presence of both carbon and hydrogen (and sometimes other elements like O, N, S).

4)CO2 is an organic compound: False

There are no H atoms, hence CO2 is not organic.

5) There are hundreds of thousands of organic compounds: True

7 0
3 years ago
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