Answer:
An exothermic reaction is a chemical reaction that releases energy by light or heat. Endothermic reaction is a chemical reaction that absorbs energy or heat from its surroundings
Explanation:
Answer:
Sugar dissolves in water because energy is given off when the slighty polar sucrose molecules form intermoleeular bonds with the polar water molecules.
Explanation:
Answer:
oil = burn for 8 days = absurd = doesnt make sense but it happened lol
Explanation:
If It takes 60mL of 0.20M of sodium hydroxide (NaOH) to neutralize 25 mL of carbonic acid (
), then the concentration of the carbonic acid is 0.24M
The reaction between NaOH solution and
is written below

Volume of NaOH,
= 60 ml
Volume of
, 
Molarity of
, 
Molarity of NaOH, 
Number of moles of
, 
Number of moles of NaOH, 
The mathematical equation for neutralization reaction is:

Substitute
,
,
,
= 60ml, and
into the equation above in order to solve for 

Therefore, the concentration of the carbonic acid is 0.24M
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