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vodka [1.7K]
3 years ago
12

I WILL GIVE BRAINLIEST!!

Chemistry
1 answer:
melomori [17]3 years ago
5 0

Answer:

fine grained

Explanation:

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How many grams are in 0.21mol sample of ethyl alcohol?
vampirchik [111]
Mass = moles x molar mass
Molar mass of eythl alcohol = 46

Mass= 0.21 x 46= 9.66g
7 0
4 years ago
Why do people who do a lot of physical work need more carbohydrate? <br>​
MaRussiya [10]

Answer:

A person doing physical work needs lots of good carbohydrates to keep their energy levels up and proteins to repair a muscle that might get wear and tear from overexertion. Carbohydrate will help the person work for more extended periods.

6 0
3 years ago
Sodium (Na) has an atomic number of 11 and an atomic mass of 23. Which of the following correctly shows the electron
Pepsi [2]

Answer:

soudioum has 12 electrons

6 0
3 years ago
Which are correct ???
pav-90 [236]

Answer:

last one

Explanation:

endothermic reactions release energy

7 0
3 years ago
the diagram below represents two beakers, each containing an ice cube and clear liquid. in beaker A the ice cube floats, and in
Mama L [17]

Answer:

The density of the liquid in beaker B is less than the that of ice.

Explanation:

Ice will float if its mass is less than the mass of the liquid it displaces.

For example, the density of ice is less than that of water.

A 10 cm³ cube of ice has a mass of about 9 g, while the mass of 10 cm³ of water is 10 g. Thus, 9 g of ice displaces 10 g of water.

The denser water displaces the lighter ice and the ice floats to the top.

If the density of the liquid is <em>less than</em> that of water, say, 8 g/cm³, the ice will displace only 8 g of the liquid. The ice will sink.

4 0
4 years ago
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