Answer:
A solid's particles are packed closely together. The forces between the particles are strong enough that the particles cannot move freely; they can only vibrate. As a result, a solid has a stable, definite shape and a definite volume. Solids can only change shape under force, as when broken or cut.
Answer: The statement (B) is not true about chemical reactions.
Explanation:
A chemical reaction rate is affected by the several factors few of which are temperature, concentration of reactants, surface area etc.
In a chemical reaction, if temperature is increased then the rate of reaction will increase because it will increase the average kinetic energy of the reactant molecules. Thus, large number of molecules will have minimum energy required for an effective collision.
It is known that increasing the amount of reactants will increase the rate of reaction.
Therefore, rate of reaction will change if concentration or temperature is changed.
Hence, the statement (B) is not true about chemical reactions.
Answer:
moles HCl = 101.2 g /36.461 g/mol=2.78
[H+]= 2.78 mol/ 150 L =0.0185
pH = - log 0.0185=1.73
1.73 is the answer
<span>TAG: YOUR IT!!!!
It's pretty funny you opened this because......... over the next 4 days you will:
1. Have someone fall in love with you
2.Find a $20 on the ground
3.Go out with the person you like
4.Your best friend will get you a very nice gift
BUT first you have to fwd this! *Send to 10 ppl in the next 143 minutes. If you break the chain you'll have problems with:
-Relationships '
-your job/school your family for 5 years!!! ??
</span>