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2 years ago

If a rock had a mass of 20g explain how you would fund the density

Chemistry

2 answers:

REY [17]2 years ago

4 0

Answer:

you have to divide it

Explanation:

aleksley [76]2 years ago

3 0

Answer:

whats the volume u can't find the density without dividing the mass by the volume

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3 years ago

Water _____.

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Answer: is neither an acid nor a base

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2 years ago

A student placed equal volumes of honey and of water in two, identical, open dishes, and left them at room temperature for 8 hou

Ahat [919]

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2 years ago

Read 2 more answers

For the equilibrium

Mamont248 [21]

Answer:

Equilibrium concentrations of the gases are

$H_2S=0.596M$

$H_2=0.004 M$

$S_2=0.002 M$

Explanation:

We are given that for the equilibrium

$2H_2S\rightleftharpoons 2H_2(g)+S_2(g)$

$k_c=9.0\times 10^{-8}$

Temperature, $T=700^{\circ}C$

Initial concentration of

$H_2S=0.30M$

$H_2=0.30 M$

$S_2=0.150 M$

We have to find the equilibrium concentration of gases.

After certain time

2x number of moles of reactant reduced and form product

Concentration of

$H_2S=0.30+2x$

$H_2=0.30-2x$

$S_2=0.150-x$

At equilibrium

Equilibrium constant

$K_c=\frac{product}{Reactant}=\frac{[H_2]^2[S_2]}{[H_2S]^2}$

Substitute the values

$9\times 10^{-8}=\frac{(0.30-2x)^2(0.150-x)}{(0.30+2x)^2}$

By solving we get

$x\approx 0.148$

Now, equilibrium concentration of gases

$H_2S=0.30+2(0.148)=0.596M$

$H_2=0.30-2(0.148)=0.004 M$

$S_2=0.150-0.148=0.002 M$

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2 years ago

What season starts in the northern hemisphere as the suns direct rays strike the equator moving from the southern hemisphere to

laila [671]

Answer:

summer

Explanation:

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3 years ago