![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 23:00
Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?
Answers: 3
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 02:00
Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?
Answers: 2
![question](/tpl/images/cats/himiya.png)
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
You know the right answer?
How many lenses do microscopes have?...
Questions
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 05.03.2021 18:20
![question](/tpl/images/cats/mat.png)
Mathematics, 05.03.2021 18:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.03.2021 18:20
![question](/tpl/images/cats/mat.png)
Mathematics, 05.03.2021 18:20
![question](/tpl/images/cats/mat.png)
Mathematics, 05.03.2021 18:20
![question](/tpl/images/cats/mat.png)
Mathematics, 05.03.2021 18:20
![question](/tpl/images/cats/en.png)
English, 05.03.2021 18:20
![question](/tpl/images/cats/mat.png)
Mathematics, 05.03.2021 18:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.03.2021 18:20
![question](/tpl/images/cats/mat.png)
Mathematics, 05.03.2021 18:20
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 05.03.2021 18:20