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weqwewe [10]
3 years ago
5

Day and night are caused by what

Chemistry
1 answer:
Aleks04 [339]3 years ago
6 0

Answer:

THE GOD ALMIGHTY!

Explanation:

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Atoms = 3.9 x 10. 24 atoms. 1 mole. 2. How many moles of argon are in a sample ... 6.02 x 10. 23 atoms. 3. How many moles are in 2.5g of lithium? 2.5 grams Li .
4 0
3 years ago
A 250mL sample of oxygen is collected over water at 30 C and 850 torr pressure. What is the pressure of the dry gas alone?
3241004551 [841]

Answer:

p_O=818.2torr

Explanation:

Hello there!

In this case, according to the given equation, it is possible to calculate the mass of oxygen by using the Dalton's law, considering that the total pressure is 850 torr and the vapor pressure of water at 30°C is 31.8 torr:

P_T=p_O+p_{H_2O}

Thus, we solve for the pressure of oxygen as follows:

p_O=P_T-p_{H_2O}\\\\p_O=850torr-31.8torr\\\\p_O=818.2torr

Best regards!

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3 years ago
Which term refers to the formation of ions as a result of a chemical reaction?
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Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

Ionization is the term <span>refers to the formation of ions as a result of a chemical reaction.

</span>Ionization<span>, in general, occurs whenever sufficiently energetic charged particles or radiant energy travel through gases, liquids, or solids. Charged particles, such as alpha particles and electrons from radioactive materials, cause extensive </span>ionization<span>along their paths.</span>
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Photosynthesis stores energy. True or False
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