Explain how you would find the number of moles of carbon in 4.5 kg of carbon.

An atom of aluminum has 13 protons and 14 neutrons. what is the atomic mass

When 1.57 mol o2 reacts with h2 to form h2o, how many moles of h2 are consumed in the process?

What does carbonic acid decompose into

Order the following ionic compounds in order of increasing magnitude of lattice energy: MgO, CaCl2, KCl, and LiF Group of answer choices MgO < CaCl2 < KCl < LiF KCl < CaCl2 < LiF < MgO LiF < KCl < CaCl2 < MgO KCl < LiF < CaCl2 < MgO KCl < LiF < MgO

Determine the molarity of a solution formed by dissolving 97.7 g LiBr in enough water to yield 750.0 ml of solution. A) 1.50 M B) 1.18 M C) 0.130 M D) 0.768 M E) 2.30 M

What is the oxidation number for Our in NaHCO3?

To determine if a reaction is exoteric a student should use

Which of the following are physical properties of a penny? Choose all that are correct. Select one or more:a. Slightly red in color. b. Conducts electricity very well. c. Reacts to oxygen when heated. d. Resists corrosion from most acids.

NO2 and N2O4 undergo the reaction shown. When a sealed container of NO2 reaches chemical equilibrium, which must be true? A) No N2O4 is present. B) No chemical reactions are occurring. C) The rates of the forward and reverse reactions are equal.

What differences did you notice in the different states of water