3. Why are nutrients needed for living things? Describe the difference between living and nonliving things.

1 answer:

8 0

Nutrients are synthetic substances found in each living thing on Earth. They are important to the existences of individuals, plants, animals, and any remaining organisms. Nutrients assist break with bringing down food to give organisms energy. ... The main nutrients they need are carbon, hydrogen, and oxygen.

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What are three reasons that using renewable energy is important.

wariber [46]

Answer:

1. they reduce green house gases

2. they can last a long time and come back pretty much every year and some never run out

3. we have unlimited supply of most if not all renewable resources

Explanation:

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2 years ago

During a laboratory experiment, 36.12 grams of Aboz was formed when O2 reacted with aluminum metal at 280.0 K and 1.4 atm. What

kvv77 [185]

Answer:

8.70 liters

Explanation:

3O₂+ 4Al → 2AI₂O₃

First we convert 36.12 g of AI₂O₃ into moles, using its molar mass:

36.12 g ÷ 101.96 g/mol = 0.354 mol AI₂O₃

Then we convert AI₂O₃ moles into O₂ moles, using the stoichiometric coefficients of the reaction:

0.354 mol AI₂O₃ * $\frac{3molO_2}{2molAl_2O_3}$ = 0.531 mol O₂

We can now use the PV=nRT equation to calculate the volume, V:

1.4 atm * V = 0.531 mol * 0.082 atm·L·mol⁻¹·K⁻¹ * 280.0 K

V = 8.708 L

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3 years ago

Why are baking directions on cake mix boxes different for higher altitudes

Blababa [14]

Answer:

Explanation:First, the dry air at high elevations tends to make things dry out quickly. Second, the boiling point of water is lower at altitude, which means that moisture will tend to bake out of your cakes more quickly. ... In the reduced air pressure of high altitudes, your leavening ingredients will act more powerfully.

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3 years ago

A flask holds 3.01 x 1023 molecules of carbon dioxide. The container is holding ________

sammy [17]

(B), because 1.0 moles would be 6.02 x 10^23 molecules. So you have half a mole.

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What mass of salt is needed to prepare 600 mL of a 4g/L solution?

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THE ALTERNATIVE IS 4.8g alternative c

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