2 years ago

How did corana virus start

2 answers:

7 0

Answer:

we know that it originally came from an animal, likely a bat. At this time, there is no evidence that animals play a significant role in spreading the virus that causesd

Explanation:

Amiraneli [1.4K]2 years ago

6 0

Answer:

THE VIRUS DIDNT COME FROM NO BAT!

Explanation:

THE VIRUS STARTED IN CHINA IN A LAB AND CHINA DIDNT EVEN TELL THE USA ABOUT IT THEY HIT IT FROM US. WHEN CHINESE PEOPLE WERE TRAVELING TO THE USA IT SPREADED.

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If you wanted to find a sample of fermium, which has an atomic number 100, where would you look?

sergeinik [125]

The answer would be B: In the Earth’s atmosphere!.

Hope this helps,

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3 years ago

ObIel WiLll unt COl.. USSMS A certain chemical reaction releases 31.2 kJ/g of heat for each gram of reactant consumed. How can y

aleksandr82 [10.1K]

Answer:

The expression to calculate the mass of the reactant is $m = \frac{1.080kJ}{31.2kJ/g}$

Explanation:

<em>The amount of heat released is equal to the amount of heat released per gram of reactant times the mass of the reactant.</em> To keep to coherence between units we need to transform 1,080 J to kJ. We do so with proportions:

$1,080J.\frac{1kJ}{10^{3}J } =1.080kJ$

Then,

$1.080kJ=31.2\frac{kJ}{g} .m\\m = \frac{1.080kJ}{31.2kJ/g}$

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3 years ago

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For acidic solutions, which element is added to balance half-reactions

mina [271]

For balancing acidic solutions, we would need to add H+ ions to the correct side of the equation to balance the total number of atoms and the overall charge.

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3 years ago

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The North Star is the last star in the Ursa Minor constellation.<br> True<br> False

Alja [10]

The answer is true. It is the last star.

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3 years ago

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