Chemistry, 09.04.2020 17:54 icantspeakengles
Put the following in the correct chronological order from what happened first to what happened last.
1. Thought everything revolves around the sun but could not prove it.
2. Thought everything revolves around the Earth.
3. Analyzed the data that was gathered by another astronomer about the movement of the planets and proved that the orbits are elliptical.
4. Proved that the planets revolve around the sun by making observations.
Answers: 2
Chemistry, 22.06.2019 13:50
Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.
Answers: 1
Chemistry, 22.06.2019 19:30
Draw the lewis structure for the trisulfur s3 molecule. be sure to include all resonance structures that satisfy the octet rule.
Answers: 3
Chemistry, 22.06.2019 20:30
Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?
Answers: 1
Chemistry, 22.06.2019 20:30
Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.
Answers: 1
Put the following in the correct chronological order from what happened first to what happened last....
Mathematics, 17.08.2021 05:00
Computers and Technology, 17.08.2021 05:00
Mathematics, 17.08.2021 05:00
Mathematics, 17.08.2021 05:00
Mathematics, 17.08.2021 05:00
English, 17.08.2021 05:00
History, 17.08.2021 05:00
Mathematics, 17.08.2021 05:00