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Rzqust [24]
1 year ago
12

Select the correct answer from each drop-down menu. How can you reduce air pollution arising from transportation?

Chemistry
1 answer:
Sphinxa [80]1 year ago
7 0

Explanation:

When using public transport vehicles instead of private cars, we emit less pollution. For example in a bus more than 20 people travel, so the pollution per person is lower.

When we increase speed we usually consume more fuel, so avoiding accelerating rapidly we also reduce pollution.

Answer:

a) public transport vehicles.

b) accelerating rapidly.

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For an isoelectronic series of ions, the ion that is the smallest is always 1. the ion with the most electrons. 2. the ion with
Sophie [7]

Answer:

the ion with the most electrons

Explanation:

Ionic size generally depends on weather the ions are negative or positive. Averagely, atoms become smaller on moving from left to right in the periodic table. A movement from left to right in the periodic table leads to a gradual increase in the number of electrons and decrease in atomic size. Li+, Be2+ and B3+ are all isoelectronic but B3+ is the smallest ion.

7 0
3 years ago
How many mL of a 1.63 M solution would contain 12 g of Na(OH)?
Evgesh-ka [11]

Answer:

89 mL of solution would contain the given amount of Al(NO₃)₃.

Explanation:

Hope this help

5 0
3 years ago
Why is it important to control all of the variables except one in an experiment?
Ad libitum [116K]
Any given experiment has numerous control variables, and it's important for a scientist to try to hold all variables constant except for the independent variable. If a control variable changes during an experiment, it may invalidate the correlation between the dependent and independent variables.



It’s copied and pasted from google so make sure to put it in your words :)

5 0
4 years ago
Read 2 more answers
What is the molar solubility of magnesium carbonate ( MgCO3 ) in water? The solubility-product constant for MgCO3 is 3.5 × 10-8
DaniilM [7]

Answer:

S MgCO3 = 1.8708 E-4 M at 25 °C

Explanation:

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           S                S             S

  • Ksp = 3.5 E-8

⇒ Ksp = 3.5 E-8 = [ Mg2+ ] * [ CO32- ] = S * S

⇒ Ksp = 3.5 E-8 = S²

⇒ S = √3.5 E-8

⇒ S = 1.8708 E-4 M

   

8 0
3 years ago
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Explain why copper has a high thermal conductivity.
Katarina [22]

Explanation:

So copper is a lattice of positive copper ions with free electrons moving between them. 

7 0
2 years ago
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