How does the shape of a molecule factor into its molecular polarity?

Give the full atomic symbol for an atom that has 30 neutrons and an atomic number of 25

Water plays a key role in chemical weathering by a. dissolving minerals c. contributing to the oxydation process b. transporting minerals d. all of the above

How many coulombs of positive charge are there in 1.2 kg of carbon? Twelve grams of carbon contain Avogadro's number of atoms, with each atom having six protons and six electrons.

Hydrogen is an element with two naturally occurring isotopes: 2 H and 3 H. This means that 2 H, which has a mass number of 2, has fewer than 3 H, which has a mass number of 3. True/False

Give the name of HCl as an acid and as a binary compound. Spelling counts!

If you can walk 2.1 miles in 35 minutes, how many days will take you to con the United States (3350 mi) if you walk 8 hours a day

How many electrons are in 1.01 oz of a pure gold coin?

When glass is spun into fine fibers, the trapped air makes a thermal insulator. A. TRUE B. FALSE

Which has a greater mass: 12 mol of salt (NaCl) or 7 mol of silver (Ag) ?

How does particle movement differ in a solid, a liquid, and a gas