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Aleksandr-060686 [28]
3 years ago
7

What are in the energy levels that surround the nucleus of an atom?

Chemistry
1 answer:
sasho [114]3 years ago
4 0
Electrons are the thing in the outer energy levels
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The table shows the number of reactants and products present during two separate chemical reactions.
finlep [7]

Answer:

Chemical reaction B, because the product is a compound

Explanation:

A synthesis or combination reaction is that reaction that involves combination of two or more reactants to form a single product. The two or more reactants are often elements that chemically combine to form a single compound.

In this question, two chemical reactions are involved in which chemical reaction A has 1 reactants and 3 products while chemical reaction B has 2 reactants and 1 product. Based on the explanation above, the reaction B correctly identifies the synthesis reaction because the single product is a compound.

4 0
3 years ago
Annie learns that the compound sulfuric acid is called the universal chemical. The acid is used in everything from gasoline to p
pochemuha

Answer:

D. H2SO4

Explanation:

The chemical  formula of a compound is an expression that stares out the elements (in form of symbols)present in a compound and the number of the atoms.

In the image;

There is one sulphur (S) atom, 4 oxygen(O) atoms and 2 hydrogen (H) atoms

The chemical formula is;

H2SO4.

The correct option is option D.

4 0
2 years ago
Imagine that you traveled to the Moon for a vacation and discovered that your weight is different there. How would your weight b
dmitriy555 [2]

Answer

No you did not lose weight.

Explanation:

Weight is the force acting on an object, Gravity is a force on earth which does not apply to the moon so your weight may change depending in where you are but your mass will stay the same because mass measures the matter of an object ITSELF! Have a nice day....

8 0
2 years ago
How many moles of Na are needed to produce moles of NaCl in the reaction below
MArishka [77]
I think it’s 1 mole
If Iam not mistaken
3 0
3 years ago
What is the amount of heat released when 25g of water cools 12.5 degrees C ?
Over [174]
Water can't cool at a single temperature. It must start at a higher temperature, and drop to a lower temperature in order to cool. Unless we know the other temperature, there is no way to calculate the amount of thermal energy released.
4 0
3 years ago
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