What is the name of the scientist who discovered the electron?

a. Niels Bohr

b. John Dalton

c. J. J. Thompson

d. Robert Millikan

Which statement below is an inference? A. The pigeon's pecking was distracted by the sound of a door slamming, so it hesitated while it considered whether to keep pecking or not. B.

In a reaction of an acid with a base, the pH changes to a value that is closer to what?

What is the percent yield of HCl if 42.0 g of HCl are produced from the reaction of 62.0 g of PCl3

How many electrons can be described by the quantum numbers n = 3, l = 3, ml = 1?

The physical process of evaporation involves

How are the number of protons and the number of neutrons related?

If a sample of copper with a density of 8.90 g/cm3 displaces 13.0 mL of water when placed in a beaker, what is its mass? a 1.46 g b. 0.685 g c. 116 g

Which statement accurately describes the origin and expansion of the universe

Conversion. 5 km to inches

How many kilojouls are required at 0c to melt an ice cube with a mass of 25g