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4 years ago

How many more valence electrons does carbon need to have a full outer valence shell?

Chemistry

1 answer:

AveGali [126]4 years ago

5 0

Carbon needs four more valence electrons, or a total of eight valence electrons, to fill its outer energy level.

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Explain how temperature and amount of precipitation can affect the type of plants and animals found in the grassland biome?

MArishka [77]

Temperature grasslands have hot summers and cold winters. Summer temperatures can be well over 100 degrees Fahrenheit, while winter temperatures can be as low as -40 degrees Fahrenheit. They typically have between 10 and 35 inches of precipitation a year, much of it occurring in the late spring and early summer. As climate conditions shift geographically so will the distributions of many plants and animals. The relatively flat terrain of grasslands increases vulnerability to climate change impacts, because habitats and species must migrate long distances to compensate for temperature shift.

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3 years ago

Explain why the open ocean is often called a “marine desert”

s2008m [1.1K]

Answer:

Blue Open

Explanation:

Blue Planet - Open Ocean

Teachable Moments: The open ocean is often referred to as a "marine desert." ... However, the biodiversity in the open ocean, away from the flow of nutrients from the coasts, is the lowest for all aquatic ecosystems.

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4 years ago

If Carl buys a 946 ml bottle of rubbing alcohol, how much of the aqueous solution is water?

Darina [25.2K]

The question is incomplete, here is the complete question:

A bottle of rubbing alcohol having aqueous solution of alcohol contains 70% (v/v) alcohol. If Carl buys a 946 ml bottle of rubbing alcohol, how much of the aqueous solution is water?

<u>Answer:</u> The amount of water present in the given bottle of rubbing alcohol is 283.8 mL

<u>Explanation:</u>

We are given:

Volume of bottle of rubbing alcohol = 946 mL

70% (v/v) alcohol solution

This means that 70 mL of rubbing alcohol is present in 100 mL of solution

Amount of water present in solution = [100 - 70] = 30 mL

Applying unitary method:

In 100 mL of solution, the amount of water present is 30 mL

So, in 946 mL of solution, the amount of water present will be = $\frac{30}{100}\times 946=283.8mL$

Hence, the amount of water present in the given bottle of rubbing alcohol is 283.8 mL

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3 years ago

Photosynthesis occurs and extra food is stored in which plant tissue\

frez [133]

Answer:Ground

Explanation:The roots help soak up moisture fromthe ground and can also store extra food made from photosynthesis

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3 years ago

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3 years ago