Fill in the blank. (Copper has a charge of 2+)

Cu+ AgNO₃ → Ag + _____

• Cu(NO₃)₂

• CuNO₃

• CuAg

• Cu

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

During a chemistry class experiment, Grace mixed hydrogen gas with chlorine gas. What product should she expect from this synthesis reaction: H₂ + Cl₂ → _________

• HCl

• H₂Cl₂

• H₂Cl

• HCl₂

Tags

NGSS.HS-PS1-1

Abigail is conducting a chemistry experiment and needs to predict the products for this Double Replacement reaction:

AgNO₃ + KCl →

• AgCl + KNO₃

• AgK + ClNO₃

• KAg + NO₃Cl

• AgCl + KNO

Charlotte is conducting an experiment to understand the decomposition of aluminum oxide, Al₂O₃ →

• Al + O₂

• O + Al₂

• Al₂ + O₃

• Al + O

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

During a chemistry lab, Samuel and Emma are asked to predict the products for this Single Replacement reaction: (Copper +1)

Mg + CuCl → ____________

• MgCl₂ + Cu

• MgCl + Cu

• MgCu + Cl₂

• MgCl + Cu₂

Tags

NGSS.HS-PS1-1

Complete the products for the following reaction. AND balance with coefficients.

___C₂H₄ + ____O₂ → _____________

• C₂O₂ + H₄

• CO₂ + H₂ + O₂

• CO + H

• CO₂ + H₂O

Tags

NGSS.HS-PS1-7

What is the charge of Iron in this compound. (Hint: use the anion and work backwards to find iron's charge):

Fe₃(PO₄)₂

• 3+

• 2+

• 1+

• 6+

During a chemistry class experiment, Ava and Samuel were tasked with demonstrating the balanced synthesis reaction of iron (III) and oxygen gas.

Write the reactants and products to this reaction.

• Fe + 3 O₂ → Fe₂O₃

• 3 Fe + 3 O₂ → 2 Fe₂O₃

• 2 Fe + O₂ → Fe₂O₃

• 4 Fe + 3 O₂ → 2 Fe₂O₃

Tags

NGSS.HS-PS1-7

Harper is conducting an experiment in her chemistry class. She combines iron filings with oxygen from the air to form rust. What kind of reaction is this:
4Fe  +  3O₂ →   2Fe₂O₃ 

• Synthesis

• Decomposition

• Single Replacement 

• Double Replacement

Tags

NGSS.MS-PS1-5

Sophia is conducting an experiment in her chemistry class where she observes the breakdown of hydrogen peroxide into water and oxygen gas:
2H₂O₂ →2 H₂O + O₂. What kind of reaction is this?

• Synthesis

• Decomposition

• Single Replacement 

• Combustion