A chemical equation is balanced by changing or adding

a.

chemical symbols.

c.

numbers in front of molecules.

b.

subscripts after atoms.

d.

reactants in the product.

Two of the simplest compounds containing just carbon and hydrogen are methane and ethane. Methane contains 0.3357 g of hydrogen for every 1.00 g of carbon.

The density of aluminum is 2.70g/mL. What is the volume in mL of 74.5 grams of aluminum?

Christina is making macaroni for her family. Would she use 1 pound of macaroni or 1 ounce of macaroni.

What is true of all mass and volume of all floating objects

What is the pressure exerted by 1.2 mol of a gas with a temperature of 20.°c and a volume of 9.5 l?

Suppose that 0.00150 moles of CO2 (44.0 g/mol) effuse out of a pinhole in 1.00 hour. How many moles of N2 (28.0 g/mol) would effuse out of the same pinhole in 1.00 hour? Assume both gases are at the same temperature and pressure.

How do you make glue from jack fruit sap?

A compound is broken down by chemical means during (1) chromatography (2) distillation (3) electrolysis (4) filtration

True of false an unbalanced force cannot change the direction in which an object is moving

What are the primary atoms that make up the scents that we smell?