3 years ago

Which of the following is not a source of air pollution related to human activities

Chemistry

2 answers:

tangare [24]3 years ago

8 0

Radon is <span>not a source of air pollution related to human activities</span>

bija089 [108]3 years ago

4 0

Answer: d) radon

Explanation:

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Rus_ich [418]

It's D because I know bcz I'm smart 8 times 8 is 60-nart

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3 years ago

If an element gives away an electron, will it form a positive ion or a negative<br> ion?

Elan Coil [88]

Answer:

posotive

Explanation:

electrons give off negative pulse so take one away

8 0

3 years ago

If Marie and Calvin dissolve 50 grams of KBr in 100 grams of water at 90oC, the solution is

hram777 [196]

Answer:

The solution is 50 %wt

Explanation:

50% wt is a sort of concentration and means, that 50 g of solute (in this case, the potassium bromide) dissolved in 100 g of water.

It is the same to say, that there are 50g of KBr for every 100g of H₂O

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3 years ago

The symbol of an element is represented by (a) Calculate the number of neutrons in the atom of X. [1mark] (b) State the number o

aliina [53]

Answer:

The question is incomplete.

A sample question and solution is given below.

Check the attachment for explanation.

Explanation:

Check the attachment below

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3 years ago

What is the sum of the coefficients when the equation is balanced with the smallest whole numbers? __BaCl2 + __Fe2(SO4)3 → __FeC

aliina [53]

Explanation:

Hphphphphphphphohoohohhpph

8 0

3 years ago