Which equation is correctly balanced?

A) H2 + O2 H2O

B) Ca + Cl2 CaCl

C) 2 H2 + O2 2 H2O

D) Ca + Cl2 Ca2Cl

What tools can scientists use to measure the volume of liquid

What is the mass number of C12, C13 and C14

What is habitat destruction?

The relative atomic mass of an atom can be found by comparing the mass of the atom to the mass of

A balloon's internal pressure is 1.25 atm, and its volume is 2.50 L. If the balloon is taken to the bottom of the ocean (pressure = 95.0 atm), what would be its new volume? Assume that the temperature does not change.

Should a bartender use ice and scoop directly from ice machine or use an ice holding device and scoop to make drinks and refill drinks from

What classification should this reaction have? 4Al + 3O2 → 2Al2O3

If you start with 100 grams of a radionuclide, how much will you have after two half-lives have passed?

Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.

4. A bird left its post and flew in a triangular path. It flew 21 yards south, 72 yards east and 75 yards diagonally to end back at the post. Is it a right triangle?