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3 years ago

How can human use of natural resources pollute the environment? :(

Chemistry

2 answers:

gladu [14]3 years ago

8 0

Answer:

If a human does an non ecofriendly thing such as litering, it can damage earths atmosphere

Explanation:

i duno

Nesterboy [21]3 years ago

8 0

Answer:

Humans impact the environment in several ways. Common effects include decreased water quality, increased pollution and greenhouse gas emissions, depletion of natural resources and contribution to global climate change.

Explanation:

hope it helps:)

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A 300-gallon anaerobic digester will be loaded daily with a feedstock that contains two parts dairy manure and one-part water by

Mars2501 [29]

Answer:

The volume of feedstock needed to mantain an organic load rate of 2 kgVS/day is 0.055 m3/day of feedstock.

The HRT is 20.6 days.

Explanation:

First, we calculate how many kg is 1 m3 of feedstock. We know the density, so we can calculate the mass:

$M=\rho*V=37.5\frac{lb}{ft^3}*1m^3*(\frac{3.281ft}{1m}) ^3=1324.5lb=600.7 kg$

If the VS are 6% in weight,

$M_{vs}=0.06*M=0.06*600.7\,kg/m^3=36,0kgVS/m3$

The volume per day needed to feed 2 kg of VS/day is:

$V=\frac{2kg}{36kg/m^3}= 0.055m3/day=5.5litres/day$

The HRT depends on the volume of the tank and the flow. Its equation is

$HRT=\frac{V}{Q}=\frac{300gal}{0.055 m^3/day}*\frac{1m^3}{264.172gal}\\ \\HRT=20.6\,days$

6 0

3 years ago

How many moles are in 272 grams of hydrogen peroxide (H2O2) ?

Strike441 [17]

Answer:

8 moles

Explanation:

When we are asked to convert from grams of a substance into moles, we have to use the substance's molar mass.

Meaning that for this problem, we'll <em>use the molar mass of hydrogen peroxide</em> (H₂O₂), as follows:

272 g ÷ 34 g/mol = 8 mol

There are 8 moles in 272 grams of hydrogen peroxide.

7 0

3 years ago

Name the reaction which forms insoluable salts

Serga [27]

Answer:

precipitation reactions

Explanation:

insoluble salts can be formed/produced by precipitation reactions

5 0

3 years ago

What is the difference between a helium atom and an alpha particle

artcher [175]

Answer:

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????

Explanation:

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3 years ago

What are the reactants for Stage 2 of photosynthesis, and where do they come from? (15 points if answer)

devlian [24]

Answer:

In photosynthesis, chlorophyll, water, and carbon dioxide are reactants. GA3P and oxygen are products. In photosynthesis, water, carbon dioxide, ATP, and NADPH are reactants.

Explanation:

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3 years ago

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