7. In a double covalent bond,

a. one atom has more than eight valence electrons.

b. one atom loses à pair of electrons.

c. two atoms shåre eight valence electrons.

d. two atoms share two pairs of electrons.

What is formed when atoms of different elements are combined chemically?

How many g of silver chloride will be produced by reacting 10g of silver nitrate with sodium chloride?

Which of the following is NOT true of physical changes? Question 3 options: Substances change form or shape Substances remain the same Chemical bonds are formed or broken

Iron (2) Chloride reacts with sodium oxide to form ... ?

Most carbon compounds are formed by sharing electrons with carbon. True False

Which atom in the ground state requires the least amount of energy to remove its valence electron? (1) lithium atom (2) potassium atom (3) rubidium atom (4) sodium atom

Which of the following is the correct Lewis structure for ammonia (NH3) ? Note: Hydrogen and nitrogen have one and five valence electrons respectively.

Which statement about the electron-cloud model is true? A. It is the currently accepted atomic model. B. it can easily be replaced by existing models C. It specifies the location and momentum of an electron. D.

To the nearest gram, what is the mass of one spoonful of sugar?

What is the molarity of a solution that contains 28g of KOH in 2L of solution?