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3 years ago

Sarita measures the mass and volume of a metal cube. The average mass is 25.3 +0.3 g. The average

Chemistry

1 answer:

Art [367]3 years ago

8 0

Answer:

I beleive the first option is correct

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The molecules of DNA produced in replication are...

Elza [17]

A) Identical

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2 years ago

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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.

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3 years ago

Which of these answers best describe a fossil ?

Mekhanik [1.2K]

You would have to show me the answers

3 0

3 years ago

WILL GIVE BRAINLIST NEED ASAP

Nookie1986 [14]

V=n/M

V=2.5/6=0.416 L

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2 years ago

What process created the sand and the soil?

Artist 52 [7]

Answer:

They are produced from rocks (parent material) through the processes of weathering and natural erosion.

Explanation:

Soil minerals form the basis of soil. They are produced from rocks (parent material) through the processes of weathering and natural erosion. Water, wind, temperature change, gravity, chemical interaction, living organisms and pressure differences all help break down parent material.

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2 years ago

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