Does the reaction of a burning candle give off or absorb heat

a graduated cylinder is filled to 10.0 mL with water and a piece of granite is placed in the cylinder, displacing the level to 23.7 mL. what is the volume of the granite piece in cubic centimeters

1. Ce concentratie va avea solutia obtinuta prin dizolvarea a 45 g alcool in 180 g apa? 2. Ce concentratie va avea solutia rezultata prin adaugarea a 120 g apa peste 240 g solutie de concentratie 44%? Va rog sa ma ajutati cat mai repede.

Using complete sentences compare solids, liquids, and gases in terms of structure.

Which process is a chemical change?

What are the different areas of an electron cloud called?

Oxygen (O) will have chemical properties most like: sulfur (S). nitrogen (N). hydrogen (H). fluorine (F).

List the five major pollutants in the United States

What mass of MgCl2 was produced from 5.87 of Mg (OH) 2 reacting with 12.84 g of HCl? Identify the limiting and the excess reactants.

Use a Punnett square to predict the cross of a homozygous tall parent with a homozygous short parent, if tall is dominant over short. What will be the phenotype of the offspring described in this example. Select one: a. some tall some short b.

Write the mathematical expression that allows you to solve for the oh - concentration in water when you know only the h3o + concentration.