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astra-53 [7]
4 years ago
9

What is the name of the polyatomic ion in the compound na2o2?

Chemistry
1 answer:
EastWind [94]4 years ago
3 0
Sodium peroxide is the answer!
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Which of the following is the correctly balanced chemical equation for the reaction of Ca(OH)2 and HNO3?
sattari [20]

Explanation:

The reaction between calcium hydroxide and nitric acid is as follows.

  Ca(OH)_{2} + HNO_{3} \rightarrow Ca(NO_{3})_{2} + H_{2}O

Number of reactant atoms are as follows.

  • Ca = 1
  • O = 4
  • H = 3
  • N = 1

Number of product atoms are as follows.

  • Ca = 1
  • O = 4
  • H = 2
  • N = 3

To balance the given chemical equation, multiply HNO_{3} by 2 on reactant side and multiply H_{2}O by 2 on the product side.

Therefore, the balanced chemical equation will be as follows.

    Ca(OH)_{2} + 2HNO_{3} \rightarrow Ca(NO_{3})_{2} + 2H_{2}O

4 0
3 years ago
A solution is made by adding 20 g table salt to 100 mL water. The solubility of salt is 36 g/100 mL water. Which term best descr
marysya [2.9K]

Answer:

We say that the solution is unsaturated.

Explanation:

If the salt solubility is 36 g in 0.1 L of water then we can dissolve 360 g of salt in 1 L of water.

Because the solution contains 200 g of salt in 1 L of water, the solution is unsaturated because more salt can be added until we reach the saturation point.

We call the solution dilute when we compare the concentration of a solution with the concentration of another solution, but here we do not compare different solutions.

3 0
2 years ago
Read 2 more answers
How many ions are in 32.45 grams of silver carbonate
GuDViN [60]

Answer:

0.0036265350669622

Explanation:

Report if wrong

-Atlas-

4 0
3 years ago
You take a very hot block of metal on top of a cold block of metal. What will
allochka39001 [22]

Answer:

They will both cool down overtime

Explanation:

Once you put something that is hot on something that is cold. They will both be hot, but overtime they will cool down. It can't stay hot forever.

6 0
3 years ago
Read 2 more answers
How is molarity affected if some solution splashes out of the flask during titration?
Annette [7]
<span>If you used more water, the molarity would go down since molarity is moles/liter, and the opposite if you used more water. 

If the acid absorbed water, the molarity would go down because the absorbed moisture will skew the weight of the acid up. 

That would make the molarity go down since there would have been unreacted acid in the spilled liquid.</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

7 0
3 years ago
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