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3 years ago

Density measures

Chemistry

2 answers:

Varvara68 [4.7K]3 years ago

3 0

C is the answer because a and b are definitions for mass and volume and a doesn’t have to do with density

Andreas93 [3]3 years ago

3 0

Answer:

A IS DISPLACEMENT

B IS VOLUME

C IS DENSITY

D IS MASS

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The pressure caused by a sample of gas is 2.25 atm. 1 atm is

nexus9112 [7]

Answer:

$0.326\frac{N}{cm^2}$

Explanation:

Hello.

In this case, considering that 1 atm equals 1.01 kPa, we can compute the pressure in kPa first as shown below:

$2.25atm*\frac{1.01kPa}{1atm} =3.26kPa$

Now, we convert kPa to Pa, considering 1 kPa equals 1000 Pa:

$3.26kPa*\frac{1000Pa}{1kPa}=3260Pa$

Now, since Pa is equal to N/m², and 1 m equals 100 cm, the pressure in newton per square centimeter turns out:

$3260\frac{N}{m^2}*(\frac{1m}{100cm})^2 \\\\0.326\frac{N}{cm^2}$

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4 years ago

There are four hundred participants in the local Thanksgiving 5K race. If 51% of the participants are female, what is the ratio

Paha777 [63]

Answer:

51:49 is the ratio of female participants to male participants.

Explanation:

Percentage of females in the race = 51 %

Percentage of males in the race = 100% - 51 % = 49%

Total participants in race = 400

Number of women participants = $51% of 400=\frac{51}{100}\times 400=204$

Number of men participants = $49% of 400=\frac{49}{100}\times 400=196$

Ratio of female participants to male participants :

$\frac{204}{196}=\frac{51}{49}=51:49$

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4 years ago

Which of these terms refers to matter that could be heterogeneous?

Dafna11 [192]

Answer:

B) mixture

Explanation:

Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly of three phases or states of matter are gas, liquid, and solid.

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3 years ago

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Answer:

m/s2

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Heterogeneous

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3 years ago