Chemistry, 29.08.2019 14:10, bailey1025

Ascientist is performing an experiment on a powder. which of the following is a sign that a chemical change has definitely occurred during his experiment?
the powder catches on fire.
the powder releases bubbles.
the powder heats up.
the powder breaks apart into smaller particles.

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 18:50, ayoismeisjjjjuan

Suppose you got a low yield of benzoin from your benzoin condensation reaction and thus only have 0.300 g of benzoin to use as the starting material for this reaction. how much concentrated nitric acid should you add? (concentrated nitric acid is 15.8 m). write your answer in the form x. xx ml

Answers: 1

continue

Chemistry, 22.06.2019 10:10, babyphoraaaaa

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

Answers: 3

continue

Chemistry, 22.06.2019 14:30, DrinkBleach888

Which substance has non polar covalent bonds

Answers: 1

continue

Chemistry, 22.06.2019 15:00, emmalie52

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .

Answers: 1

continue

Do you know the correct answer?

Ascientist is performing an experiment on a powder. which of the following is a sign that a chemical...