Liam is conducting an experiment where he combines Li₂O with H₂O to form LiOH. What type of chemical reaction is this?

Abigail is learning about chemical reactions in her science class. She observes the following reaction: CH₃OH + O₂ → CO₂ + H₂O

What type of reaction is this?

Olivia is conducting an experiment where she mixes lead with magnesium nitrate. She observes the formation of lead (II) nitrate and magnesium. What type of chemical reaction is this?

Emma is conducting an experiment in her chemistry class. She mixes calcium nitrate with sodium sulfate and observes the formation of calcium sulfate and sodium nitrate. What type of chemical reaction is this?

Priya noticed that her iron bicycle was starting to rust. What two things are causing the iron to rust?

During a chemistry experiment, Mia and Arjun were asked to identify which metal is more reactive than calcium. Which metal should they choose?

Avery is conducting an experiment to determine which metal is the most reactive. She has samples of Copper, Zinc, Magnesium, and Lithium. Which of these metals will react the most vigorously according to the reactivity series of metals?

Grace is conducting an experiment to see if silver will react with a magnesium chloride solution. Will it react?

Samuel is conducting an experiment where he dips a solid copper strip into a solution of zinc nitrate. Will a reaction occur?

Charlotte is conducting an experiment in her chemistry class. She mixes PbCl₂ with AgNO₃ and observes the formation of Pb(NO₃)₂ and AgCl. What type of reaction is this?

Anika is conducting an experiment in her chemistry class where she burns propane in the presence of oxygen. The chemical equation for the reaction is: C3H8 + 5O2 → 3CO2 + 4H2O. What type of chemical reaction is this?

Abigail and Daniel are mixing two solutions in a chemistry lab. In a double displacement reaction, what occurs between the reactants?

Benjamin is learning about combustion reactions in his chemistry class. He wants to know, in a combustion reaction, what are the typical reactants and products?

What is the capital of France?

During a science experiment, Priya observed that combustion reactions will always involve

In a chemistry class, Luna is conducting an experiment where she observes a chemical reaction that breaks down a compound into two simpler substances. Which type of reaction is she observing?

Arjun is conducting an experiment in his chemistry class. He wants to demonstrate a synthesis reaction. Which of the following reactions should he choose?

Samuel was conducting an experiment in his chemistry class and noticed something unusual. What evidence would show that a chemical reaction has occurred?

Abigail was conducting an experiment in her science class. She mixed two clear liquids together and noticed something happening. One of the signs that a chemical reaction was taking place was:

Which of the following describes a precipitate?

Which of the following is an example that includes evidence of a chemical change?

What is the evidence that a chemical change has taken place?

Identify the change as physical or chemical.

What is the evidence that a chemical change has taken place? Choose all that apply.