Chemistry, 03.02.2021 02:50 rivermadds3117

Which choice best compares these two observations? A) Observation 1. describes a physical change, and Observation 2 describes a
chemical change.
B В
Observation 1 describes a chemical change, and Observation 2 describes a
physical change.
Each observation describes a physical change.
D Each observation describes a chemical change.

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 05:50, vanessa051266

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst

Answers: 1

continue

Chemistry, 22.06.2019 10:00, melissa9882

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?

Answers: 1

continue

Chemistry, 22.06.2019 13:30, kassandrarosario1115

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123

Answers: 1

continue

Chemistry, 22.06.2019 14:30, malenacastillo4887

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2

Answers: 3

continue

You know the right answer?

Which choice best compares these two observations? A) Observation 1. describes a physical change, a...