Chemistry, 20.11.2020 18:00 nestergurl101
Marcy creates a model that compares elements and compounds. Her model is shown.
Which statement can Marcy support with her model?
An element is highly reactive, and a compound is stable.
An element can exist in any state, and a compound can only be liquid.
An element contains multiple substances, and a compound contains only one pure substance.
An element is made of a single type of atom, and a compound is made of two or more atom types.
Answers: 2
Chemistry, 22.06.2019 16:00
About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?
Answers: 2
Chemistry, 22.06.2019 23:00
If two identical atoms are bonded,what kind of molecule is formed
Answers: 1
Chemistry, 23.06.2019 03:00
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
Marcy creates a model that compares elements and compounds. Her model is shown.
Which statement can...
Physics, 07.12.2019 11:31
Mathematics, 07.12.2019 11:31
Mathematics, 07.12.2019 11:31
English, 07.12.2019 11:31
Mathematics, 07.12.2019 11:31
Mathematics, 07.12.2019 11:31
Mathematics, 07.12.2019 11:31
Social Studies, 07.12.2019 11:31
Mathematics, 07.12.2019 11:31
Social Studies, 07.12.2019 11:31