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3 years ago

Select which of the following are used to determine the age of the Earth. Select 3.

Chemistry

1 answer:

saveliy_v [14]3 years ago

7 0

Meteorites discovered on earth

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When a hydrocarbon fuel is burned, almost all of the carbon in the fuel burns completely to form co2 (carbon dioxide), which is

xxTIMURxx [149]

<h3>Answer:</h3>

1.5 × 10⁸ Kg of CO₂ / Year

<h3>Solution:</h3>

According to statement,

1 kwh generation produces = 0.73 Kg of CO₂

So,

700 kwh generation will produce = X Kg of CO₂

Solving for X,

X = (700 kwh × 0.73 Kg) ÷ 1 kwh

X = 511 Kg of CO₂ / Year

Also, as calculated,

1 household produces = 511 Kg of CO₂ / Year

Then,

300,000 households will produce = X Kg of CO₂ per Year

Solving for X,

X = (300000 households × 511 Kg) ÷ 1 household

X = 153300000 Kg of CO₂ / Year

Or,

X = 1.5 × 10⁸ Kg of CO₂ / Year

6 0

3 years ago

It is important to be careful when using non renewable resources because A. There is a limited supply of them and we can't make

Sever21 [200]

The answer is B. Non-renewable resources are non-renewable because we cannot renew, or make more, of it. Hope this helps!!!

3 0

4 years ago

Read 2 more answers

Give the common name for the structure. ethyl isopropyl ketone tert-butyl ethyl ketone sec-butyl ethyl ketone ethyl isobutyl ket

salantis [7]

The structure for this question is attached. I think the correct answer would be the fourth option. The common name of the structure would be ethyl isobutyl ketone. Other name would be 2-methyl-3-pentanone. It has a chemical formula of C7H14O or (CH3)2CHCH2C(O)CH2CH3. It is classified as an aliphatic ketone and is used as a solvent and a reagent in laboratory experiments. It is a VOC or volatile organic compound. This compound can also be found at times in normal human biofluids and in feces for about 25% of the population. At normal conditions, it exists as a solid compound.

6 0

3 years ago

Which statements are examples of how the use of resources has changed?

Oksanka [162]

Answer:

B, A, C

Explanation:

the awnsers that are displayed are the only options that are new, and clean resorsces, we have always used oil in cars but hybrids are a new consept, same as wind power

Good LUCK!!

3 0

2 years ago

True or false ? <br>an insoluble base will react with an acid. <br>

Leno4ka [110]

Answer:

true maybe

Explanation:

#CarryOnLearning

7 0

3 years ago