Question 9. The first one is the smallest. Anything with a negative exponent is going to be less than 1, the .00000241. The exponent tells you the number of zeroes to the right of the decimal point. Farther to right gets smaller and smaller.
Question 10. The last one is true. If the last digit is smaller than 5, drop the digit, and do not change. (If it is a 5 or larger, the digit before it would round up)
The five main branches of chemistry are organic chemistry, inorganic chemistry, analytical chemistry, physical chemistry and biochemistry. Chemistry can be further divided into many sub-branches that may fall under more than one of the main branches.
Answer:
V2= 625 cm^3
Explanation:
P1 × V1 = P2 × V2
P1 (initial pressure)=125 kPa
V1 ( initial volume)= 450 cm^3
P2 (final pressure)=90kPa
V2 (final volume)= ?
Rearrange the equation to make V2 the subject, since it is the value we are trying to find
V2=(P1 × V1)/P2
V2= (125 ×450)/90
V2= 625 cm^3
Answer:
The study of reaction rates is called Chemical Kinetics.
Explanation:
Hope this helps :)
