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Ahat [919]
2 years ago
9

PLEASE ANSWER AS QUICKLY AS POSSIBLE THANK YOU SO MUCH

Chemistry
1 answer:
Harlamova29_29 [7]2 years ago
6 0

Answer:

This description needs a unit describing the system of measurement.

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endothermic reaction.

Explanation:

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Why would the time for diffusion be slower in a large cell then it would be in a smaller cell
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Larger cells have smaller surface area to volume ratios
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How many atoms are in 1.75 mol of ecules oh NH^3
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1 mole ----------- 6.02x10²³ atoms
1.75 moles ------- ?

atoms = 1.75 * 6.02x10²³ / 1

= 1.053x10²⁴ atoms

hope this helps!

5 0
3 years ago
1. If a solution of sodium chloride has 22.3 g of
lina2011 [118]

<u>We are given:</u>

Mass of NaCl in the given solution = 22.3 grams

Volume of the given solution = 2 L

<u></u>

<u>Number of Moles of NaCl:</u>

We know that the number of moles = Given mass / Molar mass

Number of moles = 22.3 / 58.44 = 0.382 moles

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<u>Molarity of NaCl in the Given solution:</u>

We know that Molarity of a solution = Moles of Solute / Volume of Solution(in L)

Molarity = 0.382 / 2

Molarity = 0.191 M

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7 0
3 years ago
17.<br> What do you know about a chemical compound by looking at its chemical formula
Bas_tet [7]

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The number and the kinds of atoms in the compound

Explanation:

  • A chemical formula of a compound contains symbols o the atoms of the elements present in the compound as well as the number of atoms of each element in the form of subscripts.
  • Therefore it helps us to know the elements in a compound and the number of atoms in the compounds.
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3 years ago
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