At each step, a dichotomous key involves how many choices

Chemistry

2 answers:

kvasek [131]3 years ago

8 0

Two, hope this helps

GaryK [48]3 years ago

6 0

Two is the correct answer :3

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Define unit hi hope u have a great day

Crank

Answer:

Unit is the quantity of a constant magnitude which is used to measure the magnitudes of other quantities of the same nature. 

Explanation:

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Which of the following uses a nonrenewable energy resource to generate energy? A. nuclear power plant B. wind farm C. fireplace

Alisiya [41]

A & C.
much debated nuclear power plants uses nuclear fission power stations, with uranium-235 as the source if fission. It is "non-renewable" according to the Energy Information Administration.

burning wood is also a non-renewable energy source

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Hydroxylammonium nitrate in water: HONH₃NO₃(aq) → OHNH₃⁺(aq) + NO₃⁻(aq).
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H⁺(aq) + HONH₂(aq) ⇄ HONH₃⁺(aq).
2) with hydroxide anions react acid and produce weak base and weak electrolyte water:
HONH₃⁺(aq) + OH⁻(aq) ⇄ HONH₂(aq) + H₂O(l).

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3 years ago

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The heat of vaporization of water is 540 cal/g. How much heat is needed to change 4.28g of water to steam?

damaskus [11]

Answer:

2311.2 cal

Explanation:

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3 years ago