The box is at rest on the table. what force is represented by A?

Atoms of the same element are alike because they must have the same number of

How many grams of magnesium bromide, MgBr2, must be dissolved to prepare 400. mL of a 0.183 M aqueous solution of the salt?

How does the modern periodic table arrange elements?

Naphthalene, commonly found in moth balls, is composed of 93.7% carbon and 6.3% hydrogen. The molar mass of naphthalene is 128 g/mol. Determine the empirical and molecular formulas of naphthalene.

Why is the atomic mass of carbon 12.0111 amu and not just 12?

What is the molar mass of acetylsalicylic acid (Aspirin) ? (HC₉H₇O₄)

If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature? (2005 K)

Suppose you place an ice cube into a cup of hot tea? What will happen to the temperature of the ice cube and the tea? A) The temperature of the ice will increase quickly, while the temperature of the tea will drop slowly.

Combustion reactions use which element as a reactant?

Organisms that have the ability to use an atmospheric gas to produce an organic nutrients are known as? 1. herbivores 2. descomposers 3. carnivores 4. autotrophs