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Which of the following is an example of a physical property of hydrogen? It
Reacts with calcium
Is less dense than air
Compounds
He knew a chemical property of baking soda is that it doesn't burn
physical properties
Mixture
Explain how the substance reacts with other substances
So people knew how they could use the substances
Freezing point and melting point are examples of
Reacts with calcium
Is less dense than air
Compounds
He knew a chemical property of baking soda is that it doesn't burn
physical properties
Mixture
Explain how the substance reacts with other substances
So people knew how they could use the substances
Is the following a mixture or a compound? Sand
Reacts with calcium
Is less dense than air
Compounds
He knew a chemical property of baking soda is that it doesn't burn
physical properties
Mixture
Explain how the substance reacts with other substances
So people knew how they could use the substances
A student puts out fire on the stove by dumping baking soda on the flame. How has the student used scientific knowledge in his daily life?
Reacts with calcium
Is less dense than air
Compounds
He knew a chemical property of baking soda is that it doesn't burn
physical properties
Mixture
Explain how the substance reacts with other substances
So people knew how they could use the substances
Atoms of 2 or more elements can combine to form what?
Reacts with calcium
Is less dense than air
Compounds
He knew a chemical property of baking soda is that it doesn't burn
physical properties
Mixture
Explain how the substance reacts with other substances
So people knew how they could use the substances
Which of the following is an example of a chemical property of water? It
Reacts with calcium
Is less dense than air
Compounds
He knew a chemical property of baking soda is that it doesn't burn
physical properties
Mixture
Explain how the substance reacts with other substances
So people knew how they could use the substances
Which of the following is true of chemical properties? They
Reacts with calcium
Is less dense than air
Compounds
He knew a chemical property of baking soda is that it doesn't burn
physical properties
Mixture
Explain how the substance reacts with other substances
So people knew how they could use the substances
The scientific discovery of the chemical and physical properties of atoms took place over several centuries. Why was it important for scientists for find out about the properties?
Reacts with calcium
Is less dense than air
Compounds
He knew a chemical property of baking soda is that it doesn't burn
physical properties
Mixture
Explain how the substance reacts with other substances
So people knew how they could use the substances
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