Adventures With Atoms and Molecules: Chemistry Experiments by Robert C. Mebane, Thomas R. Rybolt

By Robert C. Mebane, Thomas R. Rybolt

Chemistry experiments for domestic or tuition reveal the homes and behaviour of assorted forms of atoms and molecules.

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Additional info for Adventures With Atoms and Molecules: Chemistry Experiments for Young People - Book I

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CZ Z^j frffe p^o HlLp^J) ICE WATER 41 Does it long did Why is the water droplets 6 Discussion Air is made and carbon dioxide molecules. of nitrogen, oxygen, There are also gaseous water molecules in the air are constantly moving. Usually they However, when the water molecules hit. cold glass, they cool off The water molecules a the in that stick in All bounce the air of the molecules off hit anything they the side of the it. on the glass are changed from a gas the air will not stick to the glass.

Discussion A rubber molecule is a special type of molecule called a polymer. Polymer molecules are made of thousands of smaller molecules. The smaller molecules are joined together to chain make long chains. One long makes a single polymer molecule. Some polymers are very polymers are very Long chains flexible rigid and stiff, like a plastic bottle. and can be stretched of rubber molecules in like Other a rubber band. a rubber ball can be pushed together 37 4 \ \ I WARM BALL or pulled apart. is The ability of what makes a rubber When rubber and stretchy snap back to ball becomes being bounce very these molecules to be pushed and pulled bouncy.

A i ^ ^SSS^g^liilSfc; TT 39 , i 5 Observations What happens when long is added float to the rest at the same bubbles Do the soap to the drop float in the sink after come to as the smaller soap bubbles? After a while, do level to fizz? bottom of the sink? Do large soap bubbles soap bubbles drop for the How baking soda? to the does the baking soda and the vinegar mixture bubbles the the vinegar bottom of the sink? How long does bottom of the sink? to the Will it take bubbles still one minute? Discussion When the vinegar added is to the baking soda, a chemical reaction occurs.

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