1. For the chemical reaction, 2Al+3H2SO4⟶3H2+Al2(SO4)3

what mass of sulfuric acid in grams is needed to produce 1.89 mol of aluminum sulfate?

2. The combustion of propane may be described by the chemical equation

C3H8(g)+5O2(g)⟶3CO2(g)+4H2O(g)

How many grams of O2(g) are needed to completely burn 73.6 g C3H8(g)?
mass O2:
g O2

3. Gaseous hydrogen and oxygen can be prepared in the laboratory from the decomposition of gaseous water.

The equation for the reaction is

2H2O(g)⟶2H2(g)+O2(g)

Calculate how many grams of O2(g) can be produced from 58.9 g H2O(g).

i do not know

explanation:

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.

more infor would

a lot