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joja [24]
3 years ago
14

(3.88 x 10to the 26th)atoms of copper would be equal to how many moles of copper?

Chemistry
1 answer:
marissa [1.9K]3 years ago
4 0

Answer:

69

Explanation:

hey u said what I said didusbevehdysg

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List of 11 properties.

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5 0
3 years ago
A beaker containing a mixture of N2(g) and H2(g) is cooled by placing it in a tray of cold water. In response to the cooling, th
Nataliya [291]

The frequency of collisions between the N₂ and H₂ molecules will decrease and the rate of reaction will also decrease.

Since the water is cooler than the gas mixture, heat will flow from the gas to the water.

The gas will cool down, so the average kinetic energy of the gas molecules will decrease.

The molecules will be moving more slowly, so there will be <em>fewer collisions</em> and <em>fewer of these collisions will have enough energy to react</em>.

The rate of reaction between H₂ and N₂ molecules at room temperature is exceedingly slow, <em>but cooling the gas mixture will make the reaction even slower</em>.

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4 years ago
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4 years ago
A change that produces one or more ___________________ is a chemical change or chemical reaction.
Arada [10]

Answer:

A change that produces one or more new substances is a chemical change or chemical reaction.

4 0
3 years ago
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5.0 g of NaCl is dissolved in water, and the solution is brought to a final volume of 150 mL. What is the molarity of this solut
Ksju [112]

Answer:

Molarity is a sort of concentration for solutions. When you talk about it, means mols of solute, that are in 1000 ml of solution. The molarity at this is 0.57M

Explanation:

As you have the solution in a volume of 150ml with 5 g of solute, in 1000 ml how much solute, do u have? The answer is 33.333g so now, you have to take the molar mass of NaCl and get the mols. Mass/molar mass, you will get the moles, so 33,3333 g / 58,44 g/m is 0.570 moles. That's M

6 0
4 years ago
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