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Sedbober [7]
3 years ago
9

E. Which of the following is a mixture? i. Water ii. Hydrogen iii. Air iv. Iron​

Chemistry
2 answers:
Ksivusya [100]3 years ago
8 0

Answer:

iv. Iron

<em><u>water is not a mixture</u></em>

<em><u>hydrogen is the simplest element</u></em>

<em><u>air is pure</u></em>

damaskus [11]3 years ago
6 0

water is known as the mixture

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How to find weight with volume and density ​
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Explanation:

Look up the density of the material the object is made of in kg/m³.

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Multiply the density by the volume.

You will then have the mass of the object in kg.

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What is the best definition for the atomic number in an element
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Which of the above electron dot diagrams is wrong and why?
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How much energy is used to heat 250 g of ice from –15°C to steam at 105°C? (Hint: 5 steps, all positive)
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7 0
3 years ago
SOLVE The density of a gas is 0.68 g/mL. What amount of space would 23.8 g of this gas occupy?
Contact [7]

Answer:

<h2>The answer is 35 mL</h2>

Explanation:

Density of a substance can be found by using the formula

Density(\rho) =  \frac{mass}{volume}

From the question we are finding the amount of space the gas will occupy that's the volume of the gas

Making volume the subject we have

volume =  \frac{mass}{Density}

From the question

mass = 23.8 g/mL

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Substitute the values into the above formula and solve

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We have the final answer as

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Hope this helps you

6 0
3 years ago
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