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2 years ago

What has mass and takes up space? A. matter B. weight C. volume D. space

Chemistry

2 answers:

spayn [35]2 years ago

7 0

Answer:

Matter is anything that has mass and takes up space.

<h3>PLEASE MARK ME BRAINLIEST</h3>

OLEGan [10]2 years ago

4 0

Answer: A. Matter

Explanation: anything that has matter has a definite shape and volume.

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An object has a mass of 960 g and a volume of 15cm3 what’s the density?

loris [4]

Answer:

I think the density is 64g/cm^3

i did 960 divided by 15 to get 64.

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1 year ago

Calculate the mass of butane needed to produce 96.7 g of carbon dioxide

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2 years ago

Acetylsalicylic acid (aspirin), HC9H7O4, is the most widely used pain reliever and fever reducer. Find the pH of 0.035 M aqueous

KatRina [158]

The pH of 0.035 M aqueous aspirin is 2.48

Explanation:

We are given:

Concentration of aspirin = 0.035 M

The chemical equation for the dissociation of aspirin (acetylsalicylic acid) follows:

$HC_9H_7O_4\rightleftharpoons H^++C_9H_7O_4^-$

Initial: 0.035

At eqllm: 0.035-x x x

The expression of $K_a$ for above equation follows:

$K_a=\frac{[C_9H_7O_4^-][H^+]}{[HC_9H_7O_4]}$

We are given:

$K_a=3.6\times 10^{-4}$

Putting values in above expression, we get:

$3.6\times 10^{-4}=\frac{x\times x}{(0.035-x)}\\\\x=-0.0037,0.0033$

Neglecting the value of x = -0.0037 because concentration cannot be negative

So, concentration of $H^+$ = x = 0.0033 M

To calculate the pH of the solution, we use the equation:

$pH=-\log[H^+]$

We are given:

$H^+$ = 0.0033 M

Putting values in above equation, we get:

$pH=-\log(0.0033)\\\\pH=2.48$

Hence, the pH of 0.035 M aqueous aspirin is 2.48

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2 years ago

Which has a larger radius Me or Xe?

IrinaVladis [17]

Xe is bigger:)

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Please leave a thanks:)

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2 years ago

A student is filtering a mixture of sand and salt water into a beaker. What will be found in the beaker after the filtration is

Sergio [31]

The student would find the water and sand, because salt dissolves in water unless it was ocean water or sea water

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2 years ago

Read 2 more answers