There are how many hydrogen atoms in this molecule? C12H22O11

Sugar dissolving into water is a physical change because...

What is the sign of a chemical change when rust forms?

Which of these applies ONLY to compounds?

Which of these applies to BOTH elements and compounds?

Which of these applies ONLY to elements?

2H2+O2 = 2H2O The product in this chemical equation is made of....

What is a product in a chemical equation

What is a reactant in a chemical equation?

Which is NOT a sign of a possible chemical change?

C6H12O6 How many elements are in this equation?

Which of the following substances is a compound?

What is a physical change

Students are given a sample of an unknown material. They want to perform tests to determine its density. Which test is MOST likely to change the sample into another material?

When something burns it it a

What is a chemical change

The Best Friend's Club uses invisible ink to write notes to each other. The invisible ink is actually lemon juice that is clear when it dries on paper, but turns brown when a club member holds a burning candle under the paper. Once it is heated, it i

Vanessa had a beaker with a small amount of baking soda. She added a few drops of vinegar to the baking soda and observed fizzing and bubbling. Based on her observation, which of these can Vanessa determine about her experimentIt wa

Which of these is a pure substance

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