In order for a substance to move from gas to liquid, what has to occur?
Question 4 optio...
In order for a substance to move from gas to liquid, what has to occur?
Question 4 options:
The substance must undergo an endothermic reaction and absorb energy
The substance must undergo an exothermic reaction and absorb energy
The substance must undergo an endothermic reaction and release energy
The substance must undergo an exothermic reaction and release energy
Answers: 3
Chemistry, 22.06.2019 10:00
Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.
Answers: 1
Chemistry, 22.06.2019 14:40
Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate → enzyme-substrate complex (b) enzyme + substrate ←−→ enzyme + products (c) enzyme + substrate ←−→ enzyme-substrate complex → enzyme + products (d) enzyme + substrate ←−→ enzyme-substrate complex → enzyme-substrate complex + products
Answers: 2
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How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it
Answers: 3
Chemistry, 22.06.2019 21:20
If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied
Answers: 1
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