What is the atomic number of the yet-undiscovered element directly below francium (Fr) in the periodic table?

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.