(URGENT) will mark brainliest if you help me answer this Question 1 options:

OH-

H+

Question 2 options:

OH-

H+

Question 3 options:

soap

bleach

apple juice

ammonia

Question 4 options:

lemon juice

bleach

milk

stomach acid

Question 5 options:

0-3

8-10

0-6

8-14

Question 6 options:

0-3

8-10

0-6

8-14

Question 7 options:

sour

bitter

sweet

salty

Question 8 options:

slippery

brittle

malleable

corrosive

Question 9 options:

slippery

brittle

malleable

corrosive

Question 10 options:

sour

bitter

sweet

salty

Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)