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3 years ago

14

What is a radical in science

1 answer:

Rasek [7]3 years ago

7 0

Radical In chemistry, radicals are atomic or molecular species with unpaired electrons on an otherwise open shell configuration. These unpaired electrons are usually highly reactive, so radicals are likely to take part in chemical reactions.
Hope this helps.

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Making observations is the first step in the scientific method. Why don't scientists stop with the first step when creating an e

ankoles [38]

B should be the answer!

6 0

3 years ago

Consider the second-order reaction:

kirza4 [7]

Answer:

Initial concentration of HI is 5 mol/L.

The concentration of HI after $4.53\times 10^{10} s$ is 0.00345 mol/L.

Explanation:

$2HI(g)\rightarrow H_2(g)+I_2(g)
$

Rate Law: $k[HI]^2
$

Rate constant of the reaction = k = $6.4\times 10^{-9} L/mol s$

Order of the reaction = 2

Initial rate of reaction = $R=1.6\times 10^{-7} Mol/L s$

Initial concentration of HI = $[A_o]$

$1.6\times 10^{-7} mol/L s=(6.4\times 10^{-9} L/mol s)[HI]^2$

$[A_o]=5 mol/L$

Final concentration of HI after t = [A]

t = $4.53\times 10^{10} s$

Integrated rate law for second order kinetics is given by:

$\frac{1}{[A]}=kt+\frac{1}{[A_o]}$

$\frac{1}{[A]}=6.4\times 10^{-9} L/mol s\times 4.53\times 10^{10} s+\frac{1}{[5 mol/L]}$

$[A]=0.00345 mol/L$

The concentration of HI after $4.53\times 10^{10} s$ is 0.00345 mol/L.

5 0

3 years ago

Which of the following is the smallest volume? (2 points) 2500 mL

Virty [35]

So to put them all in the same units we have
<span>2500 mL </span>
<span>250 mL </span>
<span>25mL </span>
<span>2,500,000,000mL </span>

<span>So the third one is the smallest</span>

6 0

3 years ago

Read 2 more answers

Misha Larkins [42]

Your answer is D, OH-! correct me if I’m wrong.

4 0

2 years ago

What do green plants capture from the sun?

Elodia [21]

Answer:

light energy

Explanation:

Plants use the energy from the sun to photosynthesize and make food

hope this helps :)

8 0

3 years ago