Please help me! I’ll mark brainliest if someone can answer this

Also please provide an actual answer and not spamming or deleting anything. Thank you!

What volume of solution would be needed to deliver 3.0 mg of a drug if the
concentration of the drug in the solution was 3.5% (m/v)?

When balancing a chemical equation:

For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate, m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?