1- Calcium Hydroxide + Calcium Bicarbonate 2- Calcium Bicarbonate + Sodium Carbonate

3- Calcium Sulphate + Sodium Carbonate

4- Sodium compound + Calcium Sulphate

5- Carbon dioxide + Calcium Carbonate

6- Calcium Bicarbonate + Calcium Carbonate

How do i complete this electrolysis of water lab? i’m at home, so i don’t have the materials, and the lab didn’t properly work and was incomplete at school.

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3