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Pepsi [2]
3 years ago
10

What is the mass of 2.80 grams of H2O

Chemistry
1 answer:
IrinaK [193]3 years ago
8 0

The mass of 2.80 grams of h2o is 18.02 amu I believe

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Match the following terms:
AURORKA [14]

Answer:

See below ~

Explanation:

<u>A to B</u>

⇒ Solid Phase

==========================================================

<u>B to C</u>

⇒ Melting

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<u>C to D</u>

⇒ Liquid Phase

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<u>D to E</u>

⇒ Vaporizing

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<u>E to F and beyond</u>

⇒ Gas Phase

3 0
2 years ago
Freezing a candy bar is an example of a physical change. <br> True or false
Debora [2.8K]

Answer: This is true.

Explanation:  

 It is true because if becomes frozen, then it is physically harder to melt...

6 0
2 years ago
Wegener proposed the theory of continental drift based on all of the following except?
maxonik [38]

Answer:

A.

Explanation:

The continents on Earth have a fixed position.

Sorry if I'm wrong but I hope this helped

4 0
3 years ago
A gas occupies 100 mL at 150. kPa. Find its volume at 200. kPa. You must show all your work to receive credit. Be sure to identi
PtichkaEL [24]

The Boyle-Mariotte's law or Boyle's law is one of the laws of gases that <u>relates the volume (V) and pressure (P) of a certain amount of gas maintained at constant temperature</u>, as follows:

PV = k

where k is a constant.

We can relate the state of a gas at a specific pressure and volume to another state in which the same gas is at different P and V since the product of both variables is equal to a constant, according to the Boyle's law, which will be the same regardless of the state of the gas. In this way,

P₁V₁ = P₂V₂

Where P₁ and V₁ is the pressure and volume of the gas to a state 1 and P₂ and V₂ is the pressure and volume of the same gas in a state 2.

In this case, in the state 1 the gas occupies a volume V₁ = 100 mL at a pressure of P₁ = 150 kPa. Then, in the state 2 the gas occupies a volume V₂ (that we must calculate through the boyle's law) at a pressure of P₂ = 200 kPa.  Substituting these values in the previous equation and clearing V₂, we have,

P₁V₁ = P₂V₂ → V₂ = \frac{P1V1}{P2}  

→ V₂ = \frac{100 mL x 150 kPa}{200 kPa}

→ V₂ = 75 mL

Then, the volume occupied by the gas at 200 kPa is V₂ = 75 mL

6 0
3 years ago
Man's scientific theories are often in correct because his knowledge is​
Alik [6]

Answer:

Incomplete  

Explanation:

I wouldn't say that a scientific theory is wrong.

It is the best we have at the time, based on all available knowledge .

As each new discovery is made, scientists modify the theory to fit the new knowledge.

The scientific method is a never-ending process.

8 0
3 years ago
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