During a lab experiment with magnesium and hydrochloric acid, curious carl observed bubbles being produced. he identified the gas as being hydrogen. the formula is: mg + 2hcl → mgcl2 + h2(g) - what is the mass in grams of two moles of hcl?

a. 18.3 g

b. 36.5 g

c. 73.0 g

d. 82.6 g

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

Write the overall equation for the reaction for lithium battery

Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride