Percent composition?: 85.05 g of Mg combines completely with 112.21 g of S.

empirical formula?: 78.8% C, 20.2% H. 67.6% Hg, 10.8% S, 21.6% O

What reaction is an example of an exothermic process

What happens to energy and bonds when a chemical reaction occurs

Which describes what a velocity/time graph would look like with no acceleration?

Which is a saturated solution? 1) 40g NH4Cl in 100g water at 50 degrees celcius 2) 2g SO2 in 100g water at 10 degrees celcius 3) 52g KCL in 100g water at 80 degrees celcius 4) 120g KI in 100g water at 20 degrees celcius

Categorize each hydrocarbon as being saturated or unsaturated. 3-methyloctane cyclopentene propane heptyne heptane

What is the name of a list of elements arranged according to the ease with which they undergo certain chemical reactions?

Why is it harder for the earth to recover from some natural disasters now? A) Human influence may compound the damage. B) The natural disasters have gotten worse. C) This statement is not true.

Heat is most closely related to ___ energy. A. Nuclear B. Electrical C. Thermal

How many moles are in 26.4 grams of lithium

What is the independent, dependent, control group and constant: A student wanted to test how the mass of a paper airplane affected the distance it would fly. Paper clips were added before each test flight.