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cluponka [151]
3 years ago
15

Convert 281 K to degrees Celsius. 281 K = _____ -8°C 554°C 8°C

Chemistry
1 answer:
Lisa [10]3 years ago
3 0

Answer:

8°C

Explanation:

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8. An atom has 9 protons, which element is it?​
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Answer:

fluorine

Explanation:

The element fluorine has 9 protons and 9 electrons.

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What number of moles of Pb (NO3)2 is consumed when 54 g of KNO3 is produced
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Explanation:

hope it helps you understand moles

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Which step of scientific inquiry involves organizing and interpreting the data?
elena-14-01-66 [18.8K]

b. Analysis. In the analysis step, you organize and interpret your data to see if they support your hypothesis.

a. Experimentation is <em>incorrect</em> because this is the step in which you do experiments to test if your prediction is accurate.

c. Conclusion is <em>incorrect</em> because a conclusion is a decision you make to accept or reject your hypothesis.

d. Hypothesis is <em>incorrect</em> because a hypothesis is a proposed explanation for why something happens.

8 0
3 years ago
What would make bromide salt insoluble in water?
anzhelika [568]
Its doesn't dissolve in water! 
3 0
2 years ago
An ideal gas is contained in a cylinder with a volume of 5.0x102 mL at a temperature of 30°C and a pressure of 710. Torr. The ga
Scorpion4ik [409]

Answer:

51207 torr is the new pressure of the gas

Explanation:

We can solve this question using combined gas law that states:

P1V1T2 = P2V2T1

<em>Where P is pressure, V volume and T absolute temperature of 1, initial state and 2, final state of the gas</em>

<em> </em>

Computing the values of the problem:

P1 = 710torr

V1 = 5.0x10²mL

T1 = 273.15 + 30°C = 303.15K

P2 = ?

V2 = 25mL

T2 = 273.15 + 820°C = 1093.15K

Replacing:

710torr*5.0x10²mL*1093.15K = P2*25mL*303.15K

3.881x10⁸torr*mL*K = P2 * 7.579x10³mL*K

P2 = 51207 torr is the new pressure of the gas

4 0
2 years ago
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