True!
Energy released by system is absorbed by surroundings.
The liquid nitrogen freezes the balloon and shatters it on contact
The answer is d, hand soap.
Hand soap is alkaline and red litmus paper turns blue when exposed to alkaline solution.
Proteins make up many many important structures in our cells ( ex : receptors , Enzymes , integral proteins and so on )
Answer:
24.5
Explanation:
15/6.3 => 2.38 half lives passed.
.5^2.38 => 0.19198 decimal representation of the percentage that is left over after 2.38 half lives have passed.
0.19198 *128 = 24.5 mg of the material remaining.
