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Temka [501]
4 years ago
8

Earth rotates once every 24 hours. What does this mean?

Chemistry
1 answer:
prohojiy [21]4 years ago
6 0
B- Earth completes a full spin on its axis once every 24 hours.
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Hey can someone please help me with this
vivado [14]

Answer:

This is not a redox reaction.

Explanation:

A redox reaction is a reaction that involves reduction and oxidation processes. The best way to identify a redox reaction. Changes in the oxidation number f the species indicates that it is a redox reaction.

Na+

Reactant side = +1, Product Side = +1; No change

Cl-

Reactant side = -1, Product Side = -1; No change

Ag+

Reactant side = +1, Product Side = +1; No change

N

Reactant side = +5, Product Side = +5; No change

O

Reactant side = -2, Product Side = -2; No change

There is no change in any of the oxidation numbers, Hence this is not a redox reaction.

6 0
3 years ago
Suppose you want to use a combustion chemical reaction to cook hot dogs and hamburgers. what type of reaction would you want? a
guajiro [1.7K]

Answer : The correct answer is a) an exothermic reaction that releases energy.

Combustion reaction is generally referred as burning or when hydrocarbon reaction with oxygen to produce carbon dioxide and water . Combustion reaction releases energy. Example :

CH₄ + O₂ → CO₂ + H₂O + Energy or heat .

The reaction which releases energy or heat are known as Exothermic reactions .

Since it says hot dogs and hamburgers are cooked means they are undergoing combustion chemical reaction and so they are exothermic reactions. So option a) an exothermic reaction which releases energy is correct .

6 0
3 years ago
Read 2 more answers
Among the following which solution is the most acidic?
Vika [28.1K]

i think it c i dont know if im right tho.

8 0
3 years ago
Explain the lava lamp
Dahasolnce [82]
A lava lamp is basically a hot liquid with chunks of the same hardend liquid and they rotate when they are heated

3 0
3 years ago
Why is hydrogen the most common element in the universe?
Scorpion4ik [409]
The universe<span> today is observed to contain one helium atom for every ten or eleven atoms of </span><span>hydrogen</span>
8 0
3 years ago
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