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faust18 [17]
3 years ago
8

Which question can be answered by science? 1 which type of candy taste the best? 2 which backpack do students purchase most offe

n?
Chemistry
1 answer:
Rainbow [258]3 years ago
8 0

question 1 because youd have to run test to figure out what its made of

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Which element is least likely to undergo a chemical reaction?
Trava [24]

Answer:

Helium

Explanation:

Helium is most likely to undergo a chemical reaction because

  • It has a complete electron shell, so it does not need any more electrons
  • Its electrons are closest to the nucleus, so it is extremely difficult to remove them
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3 years ago
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Which organism on the food chain is a carnivore? fungus grass grasshopper spider
Lady_Fox [76]

Answer:

I think it would it spider

Explanation:

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3 years ago
How is the pH of an acidic substance raised?
ch4aika [34]

Explanation:

An acid is a substance that produces excess hydroxonium ions in solution.

An acid based on the pH scale is a substance that has a low pH. Acid lies within a range of 1-7 on the pH scale.

  • A pH of 7 is for neutral compounds like water.
  • A pH greater that 7 is for basic compounds.
  • In order to raise the pH, we are driving at a substance becoming more neutral or basic.

This can be achieved by adding more base to the solution of the substance. When we add more base, hydroxyl ions will neutralize the excess hydroxonium ions and drag the pH towards that of neutrality.

Addition of more base can eventually make the substance basic.

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Phosphoric acid brainly.com/question/11062486

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4 0
2 years ago
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If 3.5 grams of NaN3 decomposed, how many grams of N2 would be produced?
Wewaii [24]

Answer:

5.25 moles.

Explanation:

The decomposition reaction of NaN₃ is as follows :

2NaN_3(s)\rightarrow 2Na(s)+3N_2(g)

We need to find how many grams of N₂ produced in the process.

From the above balanced chemical reaction, we conclude that the ratio of moles of sodium azide and nitrogen gas are 2 : 3.

2 moles of sodium azide decomposes to give 3 moles of nitrogen gas. So,

3.5 moles of sodium azide decomposes to give \dfrac{3}{2}\times 3.5=5.25 moles of nitrogen gas.

Hence, the number of moles produced is 5.25 moles.

6 0
2 years ago
As two chlorine atoms combine to form a molecule, energy is
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B. released, forming bonds usually releases energy.
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