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sergiy2304 [10]
3 years ago
15

What is atom ? chemistry​

Chemistry
1 answer:
Neporo4naja [7]3 years ago
3 0

Answer:

atom is the smallest unit of matter that has the characteristic properties of a chemical element. 

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How many moles are there in 24.0 grams of H2O
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Answer:So, one mole of water has a mass of 16 +1+1 = 18 grams. So, if one mole has a mass of 18 grams, 25 grams would have a mass of 25 grams/ 18 grams per mole or 1.39 moles

6 0
3 years ago
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"A group of college students believes that herbal tea has remarkable restorative powers. To test their belief, they visit a loca
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D) the college students

Explanation:

In the experiment conducted by staffs of the nursing home, the group of college students that came for the experiment are the subjects of the experiment. A subject is a person that participates in a research.

  • In this research, the college students are the human participants in the experiment.
  • There must be a mutual agreement between the researcher and the subject because the subject is one that is being tested to see an outcome.
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Experiments brainly.com/question/5096428

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3 years ago
What are two elements that produce background radiation on earth and what do their decay equations look like?
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The two elements that produce background radiation on earth are Radon and Uranium. Airborne radon can decay on its own. Radon undergoes alpha decay to produce Polonium. Uranium naturally undergoes alpha decay to produce Thorium.
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3 years ago
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Imagine the reaction A + B ⇌ C + D is at equilibrium, where the forward and reverse reactions are at equal rates. What would hap
kondaur [170]

Answer:

Rate of forward reaction will increase.

Explanation:

Effect of change in reaction condition on equilibrium is explained by Le Chatelier's principle. According to this principle,

If an equilibrium condition of a dynamic reversible reaction is disturbed by changing concentration, temperature, pressure, volume, etc,  then reaction will move will in a direction which counteract the change.

In the given reaction,

A + B ⇌ C + D

If concentration of A is increase, then reaction will move in a direction which decreases the concentration of A to reestablish the equilibrium.

As concentration A decreases in forward direction, therefore, rate of forward reaction will increase.

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Consider a closed containing a solid in equilibrium with its vapor. The volume of the solid is much less than that of the contai
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Answer:

Explanation:

check the attachment below

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