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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
Pure substance
chemical change
The substance you start with
found on the periodic table
When something seems to change but stays the same chemically
It was a gas
A chemical change because the the lemon juice burned into a new color
burning it into flame
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?
Pure substance
chemical change
The substance you start with
found on the periodic table
When something seems to change but stays the same chemically
It was a gas
A chemical change because the the lemon juice burned into a new color
burning it into flame
What is a physical change
Pure substance
chemical change
The substance you start with
found on the periodic table
When something seems to change but stays the same chemically
It was a gas
A chemical change because the the lemon juice burned into a new color
burning it into flame
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
Pure substance
chemical change
The substance you start with
found on the periodic table
When something seems to change but stays the same chemically
It was a gas
A chemical change because the the lemon juice burned into a new color
burning it into flame
When something burns it it a
Pure substance
chemical change
The substance you start with
found on the periodic table
When something seems to change but stays the same chemically
It was a gas
A chemical change because the the lemon juice burned into a new color
burning it into flame
What is a reactant in a chemical equation?
Pure substance
chemical change
The substance you start with
found on the periodic table
When something seems to change but stays the same chemically
It was a gas
A chemical change because the the lemon juice burned into a new color
burning it into flame
Which of these applies ONLY to elements?
Pure substance
chemical change
The substance you start with
found on the periodic table
When something seems to change but stays the same chemically
It was a gas
A chemical change because the the lemon juice burned into a new color
burning it into flame
Which of these applies to BOTH elements and compounds?
Pure substance
chemical change
The substance you start with
found on the periodic table
When something seems to change but stays the same chemically
It was a gas
A chemical change because the the lemon juice burned into a new color
burning it into flame
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