your answer is <u>D</u><u>.</u><u> </u>physical change, because a new substance is not formed.
Answer:
five half lives
Explanation:
Half-life is the time required for a quantity to reduce to half of its initial value.
How many half lives it would take to reach 3.13% form 100% of it's initial concentration:
100% - 50% : First Half life
50% - 25%: Second Half life
25% - 12.5%: Third Half life
12.5% - 6.25%: Fourth Half life
6.25% - 3.125%: Fifth Half life
This means it would take five half lives to get to 3.125% (≈ 3.13%) of it's original concentration.
Answer:
A
Explanation:
bc inorganic compoud refers to all compound that do not contain carbons.
Answer:
biggest problem with mainstream renewable energy is intermittency.
