16) The mass number of an element whose atoms have 12 protons and 13 neutrons is_

a) 12

b) 13c) 25 d) 12.5

3. You measure a cube and determine that its sides are 0.65m. You place the cube on a mass scale and determine that this cube has a mass of 10,500 grams. What is the density of this cube in units of kg/m3 and in units of g/mL?

what information is important to include when you are describing the weather?

Draw the lewis formula for chlorobenzene, a benzene derivative. include all hydrogen atoms and lone pairs.

Why can't all mixtures be classified as solutions? Question 1 options: Not all mixtures are homogeneous. Not all mixtures are heterogeneous. Not all mixtures have solutes and solvents. Mixtures are made of only one substance.

What is the mass percentage of iodine (i2) in a solution containing 4.0*10-2 mol i2 in 140 g of ccl4?

What does berkelium react with

Classifying living things

Find the parent acid and parent base of al2 (co33, determine if they are strong or weak, and determine if the salt is acidic, basic, neutral, or unpredictable.

A syringe contains 589 mL of CO at 325 K and 1.2 atm pressure. A second syringe contains 473 mL of N2 at 298 K and 2.6 atm. What is the final pressure if the contents of these two syringes are injected into a 1.00 L container at 0.00°C?

Which pair of elements can form an ionic compound? A) Two atoms of hydrogen B) One atom of sodium and one atom of fluorine C) One atom of calcium and one atom of chlorine D) Two atoms of hydrogen and one atom of oxygen