Question 20 of 30
1 point
which of the following is the best definition of anaerobic respiration?
o
a. the cellular process that converts solar energy to chemical energy
when oxygen is not available
b. physical activity that increases heart and breathing rates
o
c. physical activity that decreases heart and breathing rates
o
d. the cellular process that releases energy by breaking down
glucose when oxygen is not available

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.

Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]