Answer:
if this is a mock then just guess
Explanation:
Answer: carbon dioxide detector
Answer:
A
Explanation:
it's the sum of the masses of all the atoms in the molecule
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Answer is (3) protons and neutrons.
(P.S. The outer part contains the electrons)
Answer:
C2= 0.16M
Explanation:
C1= 2M, V1= 20ml, C2= ?, V2= 250ml
Applying dilution formula
C1V1= C2V2
2×20 =C2×250
C2= 0.16M
