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Match it! Select the correct answer from the pull down...Good luck!
Which of the following represents a chemical change?
slower for solution A and faster for solution B
the number of protons
They are the same element.
Gases can expand and be compressed.
The windowsill area is warmer
fireworks
mixtures
It can be compressed.
Billy Joe Bob took a picnic to a sandy beach. He brought a garden salad and lemonade. Which of these best describes sand, a garden salad, and lemonade?
slower for solution A and faster for solution B
the number of protons
They are the same element.
Gases can expand and be compressed.
The windowsill area is warmer
fireworks
mixtures
It can be compressed.
Each state of matter has certain physical properties. Which is a physical property of gas?
slower for solution A and faster for solution B
the number of protons
They are the same element.
Gases can expand and be compressed.
The windowsill area is warmer
fireworks
mixtures
It can be compressed.
Billy tested a control solution at room temperature (25*C), and measured how fast salt dissolved in it. Next, he cooled solution A to 10*C and heated solution B to 40*C. How quickly did the salt dissolve in solutions A and B compared to the control?
slower for solution A and faster for solution B
the number of protons
They are the same element.
Gases can expand and be compressed.
The windowsill area is warmer
fireworks
mixtures
It can be compressed.
A scientist is examining two atoms. One has a nucleus with 5 protons and 5 neutrons surrounded by 5 electrons. The other has a nucleus with 5 protons and 6 neutrons, surrounded by 5 electrons. What can he conclude about these two atoms?
slower for solution A and faster for solution B
the number of protons
They are the same element.
Gases can expand and be compressed.
The windowsill area is warmer
fireworks
mixtures
It can be compressed.
Different elements have different kinds of atoms. How can you tell an atom of one element from an atom of another?
slower for solution A and faster for solution B
the number of protons
They are the same element.
Gases can expand and be compressed.
The windowsill area is warmer
fireworks
mixtures
It can be compressed.
Each of the states of matter has specific characteristics. Which statement correctly describes one of these characteristics?
slower for solution A and faster for solution B
the number of protons
They are the same element.
Gases can expand and be compressed.
The windowsill area is warmer
fireworks
mixtures
It can be compressed.
Silly Sally Suzy filled 2 balloons with the same amounts of water, sugar, and yeast. She put 1 bowl on a table in her classroom, and the other on a sunny windowsill. Why did Silly Sally Sue observe that the balloon in the window grew larger in size?
slower for solution A and faster for solution B
the number of protons
They are the same element.
Gases can expand and be compressed.
The windowsill area is warmer
fireworks
mixtures
It can be compressed.
Check it!