subject
Chemistry, 05.02.2020 10:44 daniellecraig77

Why are carbon and nitrogen essential for survival to all living organisms? a.
they supply the energy needed for living processes.

b.
they are needed to release the energy stored in food.

c.
they provide materials organisms need to build their bodies.

d.
they ensure that matter only moves within a nonliving environment.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 07:30
How many atoms are there in 5.70 mol of mg
Answers: 2
question
Chemistry, 22.06.2019 15:00
‘which reaction would most likely require the use of an inert electrode?
Answers: 1
question
Chemistry, 23.06.2019 08:30
Benzonitrile (c6h5cn) is reduced to two different products depending on the reducing agent used. treatment with lithium aluminum hydride followed by water forms k, which has a molecular ion in its mass spectrum at 107 and the following ir absorptions: 3373, 3290, 3062, 2920, and 1600 cm-1. treatment with a milder reducing agent forms l, which has a molecular ion in its mass spectrum at 106 and the following ir absorptions: 3086, 2850, 2820, 2736, 1703, and 1600 cm-1. l shows fragments in its mass spectrum at m/z = 105 and 77. propose structures for k and l and choose an explanation for how this could be concluded.
Answers: 3
question
Chemistry, 23.06.2019 10:00
Which of the following reasons best explains why a scientist would want to replicate gregor mendel's pea plant experiment? a. to discover new aspects of the natural world b. to test the predictions of current theories c. to explain recently observed phenomena d. to test the conclusions of prior investigations
Answers: 1
You know the right answer?
Why are carbon and nitrogen essential for survival to all living organisms? a.
they supply th...
Questions
question
Mathematics, 16.10.2019 19:10
question
History, 16.10.2019 19:10
Questions on the website: 13722367