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lisabon 2012 [21]
3 years ago
12

The mass number of an atom is the number of

Chemistry
2 answers:
sergeinik [125]3 years ago
6 0

Answer:

protons plus neutrons

Explanation:

jsut the definition

AlexFokin [52]3 years ago
6 0

Answer:

protons

Explanation:

the sum of the numbers of protons and neutrons present in the nucleus of an atom

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A container is filled with a mixture of gases:
strojnjashka [21]

Answer:

The partial pressure of chlorine gas in the mixture is 1.55 atm.

Explanation:

Partial pressure of oxygen gas = p_1=1.0 atm

Partial pressure of nitrogen gas = p_2=0.75 atm

Partial pressure of chlorine gas = p_3=?

Total pressure of the mixture of gases = P = 3.30 atm

Using Dalton's law of partial pressure:

P=p_1+p_2+p_3

3.30 atm=1.0 atm+ 0.75 atm+p_3

p_3=3.30atm - (1.0 atm+ 0.75 atm)=1.55 atm

The partial pressure of chlorine gas in the mixture is 1.55 atm.

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3 years ago
Which of the following are strong electrolytes in water?
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Ionic compounds that ionize completely in water

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What happens to acceleration when the mass goes up or down?
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If you increase the mass at a given force the rate of acceleration slows. Therefore, mass is inversely proportional to acceleration.

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Cloves are approximately 17% eugenol by weight. Calculate the theoretical mass of eugenol that can be recovered from the cloves
labwork [276]

Answer:

Incomplete exercise: isolated 0.169 g of eugenol from 5.09 g of cloves

The answer is:

The theoretical mass of eugenol is 0.8653 g and the percent recovery is 19.53%

Explanation:

The theoritical mass is equal to:

TY=0.17*5.09=0.8653g

The percent recovery is:

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Today is October 31 and we view or third quarter on what date did we reserve the last new moon
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