Which pair contains an incorrect formula.

A) aluminum phosphate AlPO4

B) iron (II) sulfite FeSO3

C) silver carbonate AgCO3

D) magnesium hydroxide Mg (OH) 2

TRUE or FALSE: The current global warming trend is the first time Earth has gotten warmer

Complete the following radioactive decay problem. 238/92u arrow 4/2he 234/90th arrow 234/91pa (?) 4/2he 1/1p 1/0n 0/1e 0/-1e

Which has more molecules: a gram of co2 or a gram of h2?

A sample originally contained 1.28 g of a radioisotope. It now contains 1.12 g of its daughter isotope.

Balance the following Equation: ___Zn + ___HCl - -> ___ZnCl2 + ___H2 50g of zinc are reacted with 50g of hydrogen chloride. Calculate the amount of excess reactant. A - 4.2g B - 5.1g C - 1.4g D - 2.3g

A student prepared a stock solution by dissolving 2.50 g of KOH in enough water to make 150. mL of solution. She then took 15.0 mL of the stock solution and diluted it with enough water to make water to make 65.0 mL of a final solution.

When substances form liquid solutions, what two factors are involved in determining the solubility of the solute in the solvent? Entry field with incorrect answer The tendency towards randomness drives the solution process.

Rachel has a sample containing 2 moles of carbon. How many atoms of carbon are in this sample? a. 2.044 * 1023 atoms b. 6.022 * 2023 atoms c. 1.204 * 1024 atoms d. 6.022 * 1046 atoms

Atoms of which element have the greatest tendency to gain electrons? (1) bromine (3) fluorine (2) chlorine (4) iodine

Technetium-99 is used for brain scans. If a Laboratory receives a shipment of 200 g of this isotope, how much will remain after 24 hours? The Half-Life of Technetium-99 is 6 hours.