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Mama L [17]
3 years ago
10

The better we measure the better things ____

Chemistry
1 answer:
Vitek1552 [10]3 years ago
8 0

Don't look in the comments

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1. Mutations occur when the DNA does not copy itself correctly. Mutations are
Agata [3.3K]
1 is D 2 is c 3 is A and 4 the nucleus is so big because it is one of our largest cells in our body... hope this helps!!!!!!!!!!!
4 0
3 years ago
How many molecules are in 42.3g sample of water
Helga [31]

Answer:

The number of molecules is 1.4140*10^24 molecules

Explanation:

To know the number of molecules, we need to determine how many moles of water we have, water has molar mass of 18.015g/mol

This means that one mole of water molecules has a mass of 18.015g.

42.3g * 1 mole H2O/18.015g

= 2.3480 moles H2O

We are using avogadros number to find the number of molecules of water

2.3480 H2O * 6.022*10^ 23moles/ 1mole of H2O

That's 2.3480 multiplied by 6.022*10^23 divided by 1 mole of H2O

Number of molecules = 1.4140 *10^24 molecules

5 0
3 years ago
What do all electrolytes have in common?
Lerok [7]
Your answer would be they have mobile ions in solution.
7 0
2 years ago
Decide whether the compound is ionic or molecular, if you can.
mestny [16]

Answer:

Molecular solid

Explanation:

A molecular solid has a low melting point, they are soft and do not conduct electricity.

We have been told in the question that the solid does not really dissolve in water and it's solution does not improve the electrical conductivity of water. Hence, it must be a molecular solid.

7 0
3 years ago
Someone please answer
BARSIC [14]

1) 100s of millions of years ago Trees and plants fall into swamps

2) Layers of rotting plant matter builds up underwater

3) Over millions of years the weight of layers heat the plant matter and turn into Peat

4) Over millions of years more pressure and heat turns Peat into coal

5 0
3 years ago
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