Chemistry, 22.10.2020 01:01 Satoetoe24
Which definition is correct?
a physical change creates a new substance because bonds are broken or formed
a physical change can happen without changing any characteristics of the substance
a chemical change occurs when the substance remains the same but the shape, or other physical characteristics change
a chemical change produces a new substance by breaking and forming new bonds
Answers: 1
Chemistry, 21.06.2019 22:20, emilyborland50
Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d. the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge
Answers: 2
Chemistry, 22.06.2019 05:00, Ashleyvasquez2261
Type the letter that represents the correct location for each particle type below.
Answers: 1
Chemistry, 22.06.2019 12:30, robert7248
What is the percent composition of ca(oh)2? 37.7% ca, 53.0% o, and 10.3% h 45.5% ca, 38.2% o, and 16.3% h 54.0% ca, 43.0% o, and 2.7% h 64.7% ca, 27.0% o, and 8.3% h
Answers: 2
Chemistry, 22.06.2019 16:30, joshua1255
Find the number of moles of argon in 364g of argon.
Answers: 2
Which definition is correct?
a physical change creates a new substance because bonds are broken or...
History, 06.11.2020 08:40
History, 06.11.2020 08:40
History, 06.11.2020 08:40