subject
Chemistry, 25.08.2020 18:01 kassandrarosario1115

Choose each statement that is scientific. The universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago.
The opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on Earth.
Human life is more valuable than other forms of life on Earth because humans are more intelligent than other organisms.
Ocean tides are caused by the uneven gravitational pulls of the Moon and Sun on different parts of Earth.

ansver
Answers: 3

Another question on Chemistry

question
Chemistry, 21.06.2019 18:00
Which of the following is a compound? a.carbon b.oxygen c.hydrogen d.water
Answers: 2
question
Chemistry, 22.06.2019 08:00
An observation that requires measurement is called quantitative observable or qualitative
Answers: 1
question
Chemistry, 22.06.2019 19:20
For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) β†’ pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)
Answers: 1
question
Chemistry, 22.06.2019 21:50
Given the data below for the reaction, 2 a + 2 b + 4 c => d + e + 3 f, the reaction is fill in the [ ] order in a, fill in the [ ] order in b, fill in the [ ] order in c and fill in the [ ] order overall. (use the words "first, second, third, fourth" to fill each blank)experimentinitial conc of a, mol/l initial conc of b, mol/l initial conc of c, mol/l initial rate, mol/l.s1 0.1 0.1 0.2 2 x 10-32 0.2 0.3 0.2 6 x 10-33 0.3 0.1 0.2 2 x 10-34 0.4 0.3 0.4 1.2 x 10-2
Answers: 2
You know the right answer?
Choose each statement that is scientific. The universe's average temperature and rate of expansion...
Questions
question
Computers and Technology, 25.08.2019 14:10
question
Mathematics, 25.08.2019 14:10
question
Mathematics, 25.08.2019 14:10
Questions on the website: 13722361