Maria owns a bakery and bakes many different types of yeast breads. one day she notices that the bread she baked is flat and does not contain the air bubbles that are usually present. which of the following would be a good explanation for what has happened to her yeast?
question options:

the yeast produced too much carbon dioxide.

the yeast did not produce the carbon dioxide needed for the bread to rise.

the yeast did not produce the alcohol needed for the bread to rise.

the yeast were very active and produced too much energy.

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

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]

How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it