In the chemical formula for an ionic compound, which item is written first?

a. positive ion

b. negative ion

c. subscript

d. charge

In the reaction between barium nitrate and sodium sulfate which substance would be a precipitate as a product of the reaction. (Barium compounds are relatively insoluble and nitrate copounds are soluble) ?

Which sample of matter can be seperated into different substances by physical means

Drag each tile to the correct box. Arrange the steps describing how a wind turbine functions to provide electricity to homes and businesses. 1. Internal shaft spins 2. Distribution lines carry electricity to substation 3.

For 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g), if you begin with 16.00 g ammonia and excess oxygen, how many grams of water will be obtained?

If two substances combine to form a new substance with different properties it is called

What mass of Na2CrO4 is required to precipitate all of the silver ions from 73.6 mL of a 0.150 M solution of AgNO3?

What effect do you think gravity has on a planet's orbit? Describe what happens when yon tetove gravity?

The minimum amount of energy that reactants must have to start a chemical reaction is called

When 28 grams of a metal are heated from 14.4°C to 150°C it takes 23,200). What is the specific heat of the metal?

For the reaction 6 Li + N2 → 2 Li3N, what is the maximum amount of Li3N (34.8297 g/mol) which could be formed from 14.18 mol (6.941 g/mol) of Li and 16.37 mol of N2 (28.0134 g/mol) ? Answer in units of mol.