Factor, if needed The reaction above used all of 45.00 grams of Na to produce Hydrogen gases
(Hz). The reaction produced how many grams of Hz?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Element j is 1s 2s 2p 3s . (i) how many unpaired electrons does j have? (ii) is j a good oxidizing agent or a reducing agent? (iii) state reason for the answer.

Which of the following substances is the most soluble in water? a. sodium chloride b. methane c. bromine d. carbon