Which of the following elements could be described as least reactive, relative to the other three answer choices?

A. Au

B. Ca

C. Fe

D. Mg

Assume that Charlee has two separate beakers containing the same amount of water in each with the same temperature. She adds one spoonful of the same solute to each beaker and stirs them at the same speed.

Which pressure measurement describes the lowest gas pressure? a.) 840 Torr b.) 1.2 atm c.) 95,000 Pa d.) none

Fluorine exerts a pressure of 1.2 atm on a piston. When the pressure is changed to 1.1 atm, its volume is 556.1 mL. What was the original volume in mL? Solve the the nearest two decimal places.

Use Boyle's Law to explain what would happen to the volume of a helium - filled balloon if it was carried underwater by a diver to increasing depths and higher pressure. Assume that the temperature of the gas remains constant.

You have 9.494 grams of a diatomic gas being stored at STP in a 3.00 liter container. What is the gas?

Enter the symbol of a sodium ion, Na+, followed by the formula of a sulfate ion, SO42-

When making a molar liquid solution from a dry chemical stock, you must know the molecular weight of the compound. (A) True (B) False

A person's temperature is 40 c. What would it be in Kelvin? A. 313 K B. - 313 K C. - 313 C D. 313 C

Which one is the odd one and why? - type A blood -type A antibodies -AO genotype -A antigen

What is the expected lifespan of a nuclear reactor?