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3 years ago

Which of the following statements about line graphs is true?

Chemistry

2 answers:

Rasek [7]3 years ago

7 0

Answer: Its actually C. every data point should be shown on a line graph

I just sent the test.

Hope This Helps

Wittaler [7]3 years ago

3 0

The answer is A, the dependent variable is on the horizontal axis. Since in the equation 2x=y, the values of y is dependent of the value of x. Line graphs can be curves. Not all data points need to be shown, and there is no maximum number of data points.

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True or false? When sodium and chlorine combine and bond, a molecule is formed.

CaHeK987 [17]

When Sodium and Chlorine come together they transfer an electron.

- Source: google

Hopefully this was clear and you understood!

3 0

3 years ago

At 25°C, the equilibrium constant Kc for the reaction in thesolvent CCl4 2BrCl <----> Br2 + Cl2 is 0.141. If the initial c

ivolga24 [154]

Answer: The equilibrium concentration of bromine gas is 0.00135 M

Explanation:

We are given:

Initial concentration of chlorine gas = 0.0300 M

Initial concentration of bromine monochlorine = 0.0200 M

For the given chemical equation:

$2BrCl\rightleftharpoons Br_2+Cl_2$

Initial: 0.02 0.03

At eqllm: 0.02-2x x 0.03+x

The expression of $K_c$ for above equation follows:

$K_c=\frac{[Br_2]\times [Cl_2]}{[BrCl]^2}$

We are given:

$K_c=0.141$

Putting values in above equation, we get:

$0.141=\frac{x\times (0.03+x)}{(0.02-2x)^2}\\\\x=-0.96,+0.00135$

Neglecting the value of x = -0.96 because, concentration cannot be negative

So, equilibrium concentration of bromine gas = x = 0.00135 M

Hence, the equilibrium concentration of bromine gas is 0.00135 M

8 0

3 years ago

Is water going from liquid to solid a physical or chemical change and why

Kipish [7]

It would be a physical change. It’s still water just in a different physical form. If it was a chemical change, it would no longer be water. For example, when the ice melts back into water...it’s still water.

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3 years ago

What substance can act as catalysts in the body?

pickupchik [31]

Answer:

Enzymes

Explanation:

Enzymes are proteins that can act as catalysts in the body.

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3 years ago

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mezya [45]

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3 years ago

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