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german
3 years ago
12

9. Which type of bond involves the transfer of one or more electrons from one atom to another, resulting in an attraction betwee

n the negatively and positively charged ions? A. hydrogen B. covalent C. ionic D. sigma E metallic
Geography
1 answer:
STALIN [3.7K]3 years ago
5 0

Answer:    C. Ionic

Explanation:  The transfer of one or more electrons from one atom to another means that certain atoms are "amplified" by negative charge, since the electrons are negative, while the other atoms from which the electrons leave become positive. This means that such atoms become negative and positive ions, causing each other to attract opposite charged ions, creating an ionic bond.

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World oil reserves amount to about 10,000 EJ, and humankind uses energy at the rate of roughly 18 TW. If all our energy came fro
Volgvan

Answer:

t=17.61 years.

Explanation:

Given that

Reserve of energy = 10,000 EJ

Energy used by human = 18 TW

We know that

1\ E= 10^{18}

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So

Reserve\ of\ energy = 10,000 \times10^{18} J

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Lets t time after energy will be  exhaust

So

18 \times10^{12}\times t=10^{22}

t=\dfrac{10^{22}}{18 \times10^{12}}\ s

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1 year = 365 days

1 year = 365 x 24 hr

1 year = 365 x 24 x 3600 s

1year =3.15\times 10^7\ s

So

t=\dfrac{5.55\times 10^8 }{3.15\times 10^7}

t=17.61 years.

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