Which types of electromagnetic waves have longer wavelengths than the waves that make up visible light? Check all that apply.

radio waves

gamma rays

microwaves

infrared light

ultraviolet light

X-rays

What is the formula of the ion formed when tin achieves a stable electron configuration? A. Sn2- B. Sn3+ C. Sn4+ D. Sn4-

Which of the following properties of a base makes it a good cleaner? A. Looks shiny B. Reacts with oils and grease C. Reacts with certain metals to produce hydrogen gas D. Has a floral smell

Which example is a homogenous mixture of two or more pure substances? alcohol water coffee hot chocolate

Find the mass of one mole of carbon dioxide molecules in units of grams. Show how you reached your answer.

What is a cathode? A. The electrode that releases ions into the solution B. The electrode at which a reduction reaction occurs C. The electrode that is oxidized in a redox reaction D. The electrode that donates electrons to the system

The rate constant is found to be 3.9 x 10-5 M-1 s-1. Calculate the rate of formation of ozone when the concentration of oxygen atoms is 3.0 x 10-14 molar and the concentration of diatomic oxygen is 1.3 x 10-14 molar.

The element Oxygen, O, is an example of which of the following? Question 8 options: A compound B molecule C atom D mixture

The measurement 0.41006 gram, rounded to three significant figures, is expressed as

1. When adding strong base to a buffer, why can we assume the equilibrium value of the OH - is zero?

When acid (X) reacts with base (Y) to produce Mg3 (PO4) 2 - what are X and Y