What new characteristic did John Dalton add to the model of the atom?

1. An atom is a round, solid mass.

2. An atom has a massive, positive center.

3. An atom is made up of smaller particles.

4. An atom can join with other kinds of atoms.

What is the 4th element on the periodic table

A gas evolved during the fermentation of sugar was collected at 22.5°C and 702 mmHg. After purification its volume was found to be 25.0 L. How many moles of gas were collected? A) 0.95 mol B) 1.05 mol C) 12.5 mol D) 22.4 mol E) 724 mol

About how much water does the average American family of four use per day in their home?

Explain in detail the differences & similarities between Fission & Fusion

How is geothermal produced

Watch the animation, then check off the samples that will conduct electricity. Check all that apply. View Available Hint (s) Check all that apply. NaCl solution Solid NaCl Solid sugar Sugar solution

Burning wood represents a chemical change. True or False?

Why are phosphates in laundry detergent

What is the name of the scientist who discovered the electron

Which of these is not a covalent molecule? 1. F2 2. CO 3. LiF 4. NH3