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Nezavi [6.7K]
3 years ago
11

PLEASE I NEED HELP I WILL GIVE YOU BRAINLIST

Chemistry
1 answer:
puteri [66]3 years ago
8 0

Answer:

First Q :B

Second Q:C

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PLZ HELP!!!!!! IN YOUR OWN WORDS PLZ! :D
Neporo4naja [7]

Answer:

String a piece of twine between the cups. Use a long piece of string to help the sound travel farther. Tie a knot in the end of the string to keep it in the cup. Decorate the cups if desired. One person can hold the phone up to their ear and the other person can talk into the other cup. Keep the string tight or the sound waves won’t travel.

Explanation:

4 0
3 years ago
Yo answer my question
igomit [66]

Answer:

C maybe

Explanation:

3 0
3 years ago
Read 2 more answers
When a solid dissolves in a liquid, it is termed
olga nikolaevna [1]
A solid dissolves in a liquid when it mixes completely with the liquid. ... Things which dissolve are called solutes and the liquid in which they dissolve is called a solvent to form a solution
5 0
3 years ago
For the following reaction, identify the substances being oxidized and reduced (including their oxidation numbers), the oxidizin
V125BC [204]
<span>Si is reduced/Oxidizing reagent Mg is oxidized/reducing reagent</span>
4 0
3 years ago
How many molecules are contained in a 7.20-g sample of dimethylmercury?
jekas [21]
The formula for dimethyl mercury is. HgC2H6 = (2x12) + (6x1) + (1x200.6) = 230.6 
So the molar mass of dimethyl mercury is 230.6 g/mol. 
Number of moles in 4.2g of dimethymercury = 4.2/ 230.6 = 0.0182 moles.  
1 moles of dimethymercury contains 6.02 * 10^23 
Hence 0.0182 moles contains X 
X = 0.0182 * 6.02 * 10^23 = 0.10952 * 10^23 = 1.0952 * 10^22.
3 0
3 years ago
Read 2 more answers
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