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Warm Up 09/24Water is H2O before freezing into ice. In the ice phase, water’s chemical formula is still H2O. What kind of property is this?
a. physical propertyb. chemical propertyc. mass propertyd. expensive property
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Closing 09/24
H + H + O = H2O What is the product in the above chemical reaction?a. one atom of hydrogen (H)b. the atom of oxygen (O)c. both atoms of hydrogen (H2)d. the water (H2O)
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Warm Up 09/25Oranges, lemons, and limes are
considered to be acidic because they contain citric acid. What type of property is this?
a. physical propertyb. chemical propertyc. mass propertyd. expensive property
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Closing 09/25
Which is the BEST example of a chemical reaction.a. acid in lemonsb. malleability of aluminumc. the rusting of irond. the boiling of water
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Warm Up 09/26Which one of the substances below is considered pure?
a. coffeeb. oxygenc. sweet tead. sand
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Closing 09/26
True or False:
As you read from left to right across each period of The Periodic Table of the Elements, the atomic number of the elements go up.
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Warm Up 09/27If Jay uses a balance scale to measure the grams of his science notebook, he is finding the _______. a. volumeb. densityc. mass d. weight
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Closing 09/27
Which of the following is NOT the result of eating too much sodium in your food?
a. loss of visionb. high blood pressurec. heart problems d. kidney problems
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Warm Up 09/28
The element potassium (K) very easily combines with oxygen (O). This chemical property is known as…
a. reactivityb. malleabilityc. flammabilityd. conductivity
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Closing 09/28
If Jennifer takes measurements of the cube for length, width, and height. She is finding the cube’s…