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3 years ago

Which statement summarizes the difference between mass and weight?

Chemistry

1 answer:

alexgriva [62]3 years ago

6 0

Answer:

Mass is the amount of matter in an object.

Weight is how much an object weighs.

Hope this helps!

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Maya is playing the guitar. She drums the strings and the guitar procedures noise. maya is transforming____energy into _____ener

posledela

The strumming is mechanical energy
the notes heard is sound energy
so use D

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.

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3 years ago

A manufacturing plan has been found guilty of polluting the nearby river. this is pollution

solniwko [45]

Yes it is polluting the river with everything the manufaturing plant gives off such as the chemicals released in the air

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3 years ago

10. What are the reactants in the process described below?

masha68 [24]

Answer:

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Explanation:

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2 years ago

1. In an energy pyramid, which way does energy transfer?

natka813 [3]

It is B, From the bottom of the pyramid to the top

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3 years ago