subject
Chemistry, 16.10.2020 18:01 katy9091

A student conducting a calorimetry investigation determines a negative ∆H. What does the negative value indicate about the reaction? A. The reaction synthesized a single product.

B. The reaction was exothermic.

C. The reaction absorbed energy.

D. The reaction involved decomposition.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 21.06.2019 17:10
There are 6.022 x 10^23 atoms of hg in 1 mole of hg. the number of atoms in 4.5 moles of hg can be found by multiplying 4.5 by 6.022 x 10^23 a. 2.7 x 10^24 b. 27 x 10^23 c. 2.71 x10^24 d. 27.099 x 10^23
Answers: 3
question
Chemistry, 21.06.2019 17:10
A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?
Answers: 1
question
Chemistry, 21.06.2019 22:40
How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?
Answers: 3
question
Chemistry, 22.06.2019 04:30
Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.
Answers: 1
You know the right answer?
A student conducting a calorimetry investigation determines a negative ∆H. What does the negative va...
Questions
question
Mathematics, 11.12.2020 01:00
Questions on the website: 13722363