7th Comp #2

What kind of bond would nitrogen and phosphorus form?

• Ionic

• Covalent

• Metallic

• None of the above

Identify the products for the following precipitation reaction: AgNO₃ (aq) + NaCl (aq) →

• AgCl (s) + NaNO₃ (aq)

• AgCl₂ (s) + NaNO₃ (aq)

• AgCl (aq) + NaNO₃ (s)

• AgCl₂ (aq) + NaNO₃ (s)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Copper (II) carbonate is decomposed into copper (II) oxide and carbon dioxide. If you have 123.6 g of copper (II) carbonate at the start of the reaction and produce 79.6 g of copper (II) oxide. How many grams of CO₂ was released during the chemical reaction?

• 203.2 g

• 46.7 g

• 44 g

• 47.3 g

What are the products of the neutralization reaction of H₂SO₄ (aq) and NH₄OH (aq)?

• H₂O (l) + NH₄SO₄ (aq)

• H₂OH (l) + NH₄SO₄ (aq)

• H₂O (aq) + (NH₄)₂SO₄ (aq)

• H₂O (l) + (NH₄)₂SO₄ (aq)

If 32 grams of CH₄ reacts completely with 128 grams of O₂ to produce 88 g of CO₂. How many grams of water was made during the reaction?

• 8 g

• 72 g

• 184 g

• 248 g

Tags

NGSS.HS-PS1-7

What does the law conservation of matter tell us?

• Matter is neither created nor destroyed, but it can change from one form to another.

• Matter can be created and can change form, but it cannot be destroyed.

• Matter can be destroyed and change form, but it cannot be created.

• Matter can be created, destroyed, and change form.

Tags

NGSS.HS-PS1-7

This is the substance that you end up with in a chemical reaction and is usually on the right side of an equation.

• Reactant

• Molar Mass

• Product

• Stoichiometric Ratio

Which of the following BEST describes a synthesis reaction?

• A reaction that gives products

• A reaction in which the reactant forms two or more simple products

• A reaction that gives off heat and light

• A reaction in which two or more reactants combine to produce a more complex product.

What type of reaction is shown? Na₂CO₃ → Na₂O + CO₂

• Decomposition

• Single displacement

• Combustion

• Synthesis

What is the coefficient on AgCl when the equation below is balanced? AgF + FeCl₂ → FeF₂ + AgCl

• 1

• 3

• 2

• 4

Tags

NGSS.HS-PS1-7