6.

Which element has an atom with a total of three valence electrons?

1. Matter is 2. Atoms are An example of an atom is 3. Molecules are An example of a molecule is

Write a balanced chemical equation describing the oxidation of Cl2 gas by Cu3 + to form chlorate ion (ClO3-) and Cu2 + in an acidic aqueous solution.

350 solution 1 consists of 80% benzene and 20% toluene. solution 2 consists of 30% benzene and 70% toluene. a. how many ml of solution 1 must be added to 500 ml of solution 2 in order to produce a solution that is 70% benzene? b.

What do element; atoms; molecule; chemical bond; compound; mixture; and substance have in common

What are cells and what are they made out of

Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.

4. A bird left its post and flew in a triangular path. It flew 21 yards south, 72 yards east and 75 yards diagonally to end back at the post. Is it a right triangle?

Condension occurs in the inside of your windows in Winters, why?

How can you use Hess's law to determine a reaction's enthalpy?

7. How much energy in KJ is released when 15.0 g of steam at 100.0 degrees Celsius is condensed and then frozen to ice at 0.0 degrees Celsius?