12. Which of the following is a combustion reaction?

A. CH4 + 202

+ CO2 + 2H2O

B. 2Fe + 3Cl2 → 2FeCl3

C. Ag + KNO3 → AgNO3 + K

D. 2H20 → 2H2 + O2

What evidence caused Thomson to change Dalton's solid sphere model into the plum pudding model?

You fill a rigid steel cylinder that has a volume of 20.0 L with nitrogen gas to a final pressure of 2.00 * 10^4 Kpa at 28c How many kilograms of N2 does the cylinder contain

Which compound is an isomer of CH3CH2OH

For the reaction A + B - ⇀ ↽ - C + D A+B↽--⇀C+D, assume that the standard change in free energy has a positive value. Changing the conditions of the reaction can alter the value of the change in free energy (Δ G) (ΔG).

How many moles of water are there in one liter

When does raising the temperature of a gas increase its pressure? A. temperature B. volume C. number of particles D. pressure

Hexyne. What does the name of this hydrocarbon tell you about its molecular structure?

Which of the following processes includes all of the others? Group of answer choices transport of an ion down its electrochemical gradient osmosis passive transport facilitated diffusion

How is the Bohr atomic model different from the plum-pudding model? A. In Bohr's model, the atom's mass is found at its center instead of distributed throughout. B. In Bohr's model, the atom's mass is mostly made up of electrons instead of protons.

What does the cell theory state? A. that cells come from other cells B. that cells come only from animals C. that cells cannot be created or destroyed