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Stella [2.4K]
3 years ago
9

A ___________________________ is made of two or more different substances.

Chemistry
1 answer:
Dmitry [639]3 years ago
6 0
Mixture/ compound
hope this helps
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What is the mass of 4.25 liters of N2 gas at STP?
sukhopar [10]

We know that 1 mole of anything has a volume of 22.4 liters.

And 1 mole of N2 gas has a weight of 28 grams.

Comparing them , we get the answer as 5.31

7 0
3 years ago
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__________, a colligative property, is the difference between the freezing temperature of a pure solvent and the freezing point
PilotLPTM [1.2K]
<span>Freezing-point depression.</span>
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3 years ago
The formula for acetic acid is CH3COOH. Seana wants to know how many oxygen atoms are in 0.12 moles of acetic acid. O a. 1x 10^2
MA_775_DIABLO [31]

Answer:

c. 1.4 x 10²³ oxygen atoms

Explanation:

The number of oxygen atoms in one molecule of CH₃COOH is 2.

Avogadro's constant relates the number of molecules in one mole:

6.022 × 10²³ mol⁻¹

Thus, the number of oxygen atoms in one molecule of acetic acid can be converted to the number of oxygen atoms in one mole of acetic acid:

(2 oxygen atoms / molecule)(6.022 × 10²³ molecule / mol) = 1.204 x 10²⁴ atoms per mole

Finally, the number of oxygen atoms in 0.12 moles of acetic acid are calculated:

(1.204 x 10²⁴ atoms / mol)(0.12 mol) = 1.4 x 10²³ atoms/mol

6 0
3 years ago
Which of the following is true about lava and magma? A Lava and magma are both types of molten rock. B Magma uses waves to break
Gre4nikov [31]

Answer:

a

Explanation:

magma is lava and lava is magma

4 0
3 years ago
What is 188.5°F in Celsius?
zheka24 [161]

Answer:

That would be 86.944 Celsius

Explanation:

(188.5°F − 32) × 5/9 = 86.944°C

5 0
3 years ago
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