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sveta [45]
3 years ago
5

Complete by describing what the change of the state of the matter will be for the process to occur

Chemistry
1 answer:
Brilliant_brown [7]3 years ago
4 0

Answer:

Freezing: Liquid turns into solid. Evaporation: Liquid turns into gas. Condensation: Gas turns into liquid. Sublimation: solid into gas. Deposition: Gas into solid.

Explanation:

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A. 6.07 x 10-15<br> How many significant figures are there in this equation
Harman [31]

Answer:

3

Explanation:

In scientific notation, the number of integers in the first part will always be the amount of significant figures.

For example,

1) 1.542505 x 10^17 =7 significant figures

1) 1.54 x 10^17 =3 significant figures

8 0
3 years ago
The pressure of nitrogen gas at 35°C is changed from 0.89 atm to 4.3 atm. What will be its final temperature in Kelvin?
Alja [10]

Answer: The final temperature in Kelvin is 1488

Explanation:

To calculate the final temperature of the system, we use the equation given by Gay-Lussac Law. This law states that pressure of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

\frac{P_1}{T_1}=\frac{P_2}{T_2}

where,

P_1\text{ and }T_1 are the initial pressure and temperature of the gas.

P_2\text{ and }T_2 are the final pressure and temperature of the gas.

We are given:

P_1=0.89atm\\T_1=35^0C=(35+273)K=308K\\P_2=4.3atm\\T_2=?

Putting values in above equation, we get:

\frac{0.89}{308}=\frac{4.3}{T_2}\\\\T_2=1488K

Hence, the final temperature in Kelvin is 1488

8 0
3 years ago
30 POINTS, PLS HELP CHEMISTRY EXERCISE
Sunny_sXe [5.5K]

Answer:

Given: 800g S02 Unknown: ?g S

Explanation:

Problem Type: mass - mass

(I've done this before and my teacher gave that answer)

4 0
3 years ago
What group of plants was found in the mesozoic but not in the paleozoic?
const2013 [10]
Angiosperms didn't exist until the late Mesozoic era..
8 0
3 years ago
Which of the following are oxidation half-reactions?
Olin [163]
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Fe2+ -> Fe3+ +e-<span />
8 0
3 years ago
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