Kelsey plays soccer and gets grass stains on her shorts. She uses several types of laundry detergent to try to remove the stains, but none of them work. She makes the hypothesis that laundry detergents are not able to remove grass stains from clothing. Which best describes the evidence that fails to support the hypothesis?
A. The property can be easily observed.
B. The chemical nature of the substance does not change.
C. The state of matter depends on the amount of substance present.
D. Solids, liquids, and gases contain different substances from one another.
Answers: 2
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The ruiz family is exchanging euros for us dollars. the exchange rate is 1 euro equals 1.35261 usd. since the ruiz family knows that usd are stated to the nearest hundredth of a dollar, they used the conversion ratio
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Which label identifies the part of the atp molecule that changes when energy is released in the cells of all living things
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Kelsey plays soccer and gets grass stains on her shorts. She uses several types of laundry detergent...
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