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3 years ago

What is Molecule made off?a) Electronsb) Protonsc) Atomsd) Nuclei

Chemistry

2 answers:

Naya [18.7K]3 years ago

6 0

Answer: C

There are 2 or more different type of atoms within a molecule

exis [7]3 years ago

6 0

Answer:

C) Atoms

Explanation:

Hope that helped :)

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Use dimensional analysis to solve the following problems. Pay attention to correct use of units and correct use of significant f

svlad2 [7]

Answer:

Solution given:

1 mole of aluminum =26.98 gram

8 mole =26.98*8=215.84 gram

8.00 moles of aluminum =215.84grams.

1 mole of aluminum chloride =133.34 grams

10.5 moles of aluminum chloride =133.34*10.5=1400.07 grams

10.5 moles of aluminum chloride =1400 grams.

3 0

3 years ago

When two atoms combine by transferring electrons, it is a(n) _____ bond.

Gnesinka [82]

When two atoms combine by transferring electrons, it is an ionic bond. For example, LiF - Lithium Fluoride is an example of an ionic bond.

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3 years ago

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Which choice best describes the Law of Conservation of Energy? Group of answer choices Energy is lost and cannot be recovered. E

Natalka [10]

Energy can not be created nor destroyed

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3 years ago

Why do large area's of water change how the wind blows?

sp2606 [1]

Answer:

water changes temperature slowly i believe C is your anwser

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3 years ago

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Find the ratio v/cv/c for an electron in the first excited state (n = 2) of hydrogen.

dezoksy [38]

The answer is 0.365:100.

v/c ratio represents ratio of speed of an electron (v) to the speed of light (c).

How is the speed of an electron calculated?

The speed of an electron (v) is given by Bohr's model as-

$v =\frac{1}{n}\; \frac{e^{2}}{4\pi \varepsilon _{0}}\times \frac{2\pi }{h}$

Now, for the first excited state, n = 2.

e - Charge of electron = $1.6$ × $10^{-19}$ C

h - Plank's constant = $6.6$ × $10^{-34} J.s$

ε₀- permittivity $= 8.85$ × $10^{-12}$ $N^{-1}.C^{2}.m^{-2}$

Put the above data in the formula-

$v =\frac{1}{2}\; \frac{e^{2}}{4\pi \varepsilon _{0}}\times \frac{2\pi }{h} =\frac{1}{4}\times \frac{(1.6\times 10^{-19})^{2}}{8.85\times 10^{-12}\times 6.6\times 10^{-34}}\\ \\ =0.01096\times 10^{8} \\ \\=1.096\times 10^{6}ms^{-1}$

Now, the speed of light, c = $3.0$ × $10^{8}\ m/s$

Thus, the v/c ratio for an electron in the first excited state is calculated as-

$\frac{v}{c} =\frac{1.096* 10^{6}\ m/s }{3.0 *10^{8}\ m/s }$ = $\frac{0.365}{100}$

Hence, the v/c ratio = 0.365:100.

To learn more about the speed of an electron (v), visit:

brainly.com/question/13198566

#SPJ4

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2 years ago

What is Molecule made off?a) Electronsb) Protonsc) Atomsd) Nuclei​

What is Molecule made off?a) Electronsb) Protonsc) Atomsd) Nuclei