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Ymorist [56]
3 years ago
12

Why aren't sharks extinct?

Chemistry
2 answers:
muminat3 years ago
7 0
Sharks are not extinct because they are on the endagered species list 
Paha777 [63]3 years ago
5 0
Sharks are apex predators, and they play an important role in the ocean.

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The reaction 2KClO3(s) --> 2KCl(s) + 3O2(g) is a(n)
julia-pushkina [17]

Answer:

decomposition reaction.

Explanation:

It is a decomposition reaction as potassium chlorate compound breaks to form potassium chloride and oxygen. This reaction requires heat as source of energy to break down the compound so it is endothermic in nature.

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3 years ago
Phenolphthalein is used as a visual indicator in a strong acid-strong base titration because
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You have 500 mL of 5 M HCl already made. You need to dilute the solution to 1 M HCl. How much water will you need to add?
hram777 [196]

Answer:

You need to add 400mL of water

Explanation:

500mL = 5 M HCI     That means that if you divide both sides by 5

100mL = 1 M HCI         If you need ot get rid of 4 M HCI then you add 400 mL of water because that is what it is equal to

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Explain the flexibility and the flow characteristics of water​
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