Chemistry, 21.01.2021 03:50, raularriaga
If you could count two atoms every second, how long would it take you to count a mole of atoms? Assume that you counted continually 24 hours every day. How does the time you calculated compare with the age of Earth. which is estimated to be 4.5 x 10 years old?
Answers: 3
Chemistry, 22.06.2019 08:30, lpssprinklezlps
What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots
Answers: 3
Chemistry, 22.06.2019 10:00, halohero7
3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?
Answers: 2
If you could count two atoms every second, how long would it take you to count a mole of atoms? Assu...
Mathematics, 10.03.2021 19:50
Mathematics, 10.03.2021 19:50
Mathematics, 10.03.2021 19:50
Mathematics, 10.03.2021 19:50
Mathematics, 10.03.2021 19:50