What category of elements does krypton gas belong to?

A. metals

B. metalloids

C. non-metals

When mercury ii oxide is heated it decomposes into mercury and oxygen how many molecules of oxygen gas are produced if 12.5g of mercury (ii) oxide are heated

Which of the following compounds does NOT contain molecules? Question 2 options: CO2 H2 NaCl H2O

A solution containing which one of the following pairs of substances will be a buffer solution? A) RbCl, HCl B) KBr, HBr C) CsF, HF D) NaI, HI E) none of the above

As a research assistant, you are asked to prepare a 3.00 liter solution of magnesium sulfate at 45.0 micromoles per liter. How many moles of magnesium sulfate are required to make this solution?

Which of the following is NOT a binary compound? a. NaCI b. KH2PO4 c. KBr

Why are there so many volcanoes in and around japan

A liquid fuel mixture contains 30.35% hexane (c6h14), 15.85% heptane (c7h16), and the rest octane (c8h18). what maximum mass of carbon dioxide is produced

What is the suns color

A container has a volume of 200 L at 0.94 atm and 25 C. The pressure changes to 1.00 atm and the temperature changes to 0 C. What is the new volume of the container

f litmus paper is dipped in an acidic solution and then in a basic one, what will happen? The paper will turn from blue to red. The paper will turn from red to clear. The paper will turn from blue to clear. The solution will turn from red to blue.