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erastova [34]
3 years ago
9

What must occur before clouds can form?

Chemistry
2 answers:
fomenos3 years ago
5 0
Evaporation must happen before they can form, because clouds are condensing, which means that they first have to evaporate, then they will condense, and form clouds.
Snezhnost [94]3 years ago
3 0
Evaporation happens before clouds ared formed
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Answer:

C

Explanation:

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Water is composed of one atom of oxygen and two atoms of
egoroff_w [7]

Answer:

<em>Hydrogen.</em>

Explanation:

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3 years ago
Predict the empirical formula of these compounds. a. C2N2. b. P4O10. c. N2O5. d. NaCl. e. C9H20. f. B2H6. g. K2Cr2O7. h. Al2Br6.
Stella [2.4K]
The empirical formula is the simplest form of the formula expressed in the lowest ratio. In this case, we just have to divide each subscript by the greatest common factor. Hence.
a. CN
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c.N2O5
d.NaCl
e. C9H20
f. BH3
g.K2Cr2O7
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i.CH
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2 years ago
The ion with 36 electrons, 34 protons, and 44 neutrons
Reil [10]
While the number nuclear protons as given is 34, and therefore we deal with the element selenium, there are 2 more electrons than protons, and therefore this species has an overall
2
−
charge.
We represent this selenide ion as
S
e
2
−
. Do I win 5 pounds?

Z= 34, therefore the atom is selenium
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3 years ago
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