3 years ago

Suggest two reasons why the maximum allowed percentage of carbon monoxide

1 answer:

5 0

Carbon dioxide levels decreased because of processes that included: dissolving in the oceans. use by plants for photosynthesis. formation of fossil fuels as plants died and their carbon compounds became locked up underground.

You might be interested in

1.4g of calcium oxide obtained by heating limestone was found to contain 0.4g of oxygen.another sample of 3.5g of calcium oxide

Leya [2.2K]

Answer:

Solution

1.4 gm of CaO⟶n0.4 gm of Oxygen

1.0 gm of O2⟶3.5 gm of Ca

According to the law of definite proportions

n/m=y/x

⇒1.4/0.4=3.5.

⇒3.5=3.5

Explanation:

6 0

3 years ago

Avogadro's number represents which of the following? one mole of representative particles 6.02 x 1023 moles of representative pa

alexira [117]

6.02 x 10^23 moles of representative particles

3 0

4 years ago

The number 6.02 x 1023 is

const2013 [10]

Avogadro's constant

hope this helped:)

7 0

3 years ago

Read 2 more answers

What is the wavelength (in nm) of light with a frequency of- ^^ see picture

Dafna1 [17]

Frequency =6.75×10^14s^{-1}

$\\ \sf\longmapsto \lambda=\dfrac{c}{v}$

$\\ \sf\longmapsto \lambda=\dfrac{3\times 10^8m/s}{6.75\times 10^{14}s^{-1}}$

$\\ \sf\longmapsto \lambda=0.444\times 10^{-6}m$

$\\ \sf\longmapsto \lambda=0.4\mu m$

7 0

3 years ago

Read 2 more answers

What is an element? select one:

DIA [1.3K]

b. a chemical that cannot be broken down or separated into other chemicals

5 0

3 years ago

Read 2 more answers