Chemistry, 01.07.2019 20:00 alyssawage
Acompound is 80.0% carbon and 20.0% hydrogen by mass. assume you have a 100.-g sample of this compound. how many grams of each element are in this sample? enter the number of grams of carbon followed by the number of grams of hydrogen, separated by a comma (e. g., 30.0,70.0).
Answers: 1
Chemistry, 22.06.2019 05:30, maddyjones4172
Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean
Answers: 3
Chemistry, 23.06.2019 03:00, mullerma
Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative
Answers: 3
Acompound is 80.0% carbon and 20.0% hydrogen by mass. assume you have a 100.-g sample of this compou...
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