Answer:
The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.
Explanation:
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A coarse particle has a diameter of 1x10-6m. a nanoparticle has a diameter of 1.6 x 10-9m. Calculate how many times bigger the diameter of the coarse particle is than the diameter of the nanoparticle
Here we have to choose the way which is not the common way to judge the quality of the air in a particular area.
The measuring the amount of precipitation in the area is not the common way to determine air quality in an area.
The acidity of the rain causes due to the excess amount of CO₂ and SO₂ in an area. Both the gases cause pollution.
The measuring of the amount of a particular gas element is a renowned way to determine the pollution level of an area.
The ozone is a harmful gas so the measuring of its amount in ground level can identify the level of pollution in the particular area.
Answer:
P₂ = 394.4 KPa
Explanation:
Given data:
Volume of gas = 152 dm³
Pressure of gas = 98.6 KPa
Final pressure = ?
Final volume = quartered = 1/4×152 = 38 dm³
Solution:
P₁V₁ = P₂V₂
P₂ = P₁V₁/V₂
P₂ = 98.6 KPa . 152 dm³ / 38 dm³
P₂ = 14987.2 KPa. dm³ / 38 dm³
P₂ = 394.4 KPa
Answer:
Explanation:
4
The acid in this diagram is CH3CH2CH2-COOH. That will turn any litmus to red.
1
I'm not sure I'm reading the question correctly. I think the point is that H2 breaks up and goes on either side of the Double Bond. If that is the case, E is the correct answer. CH3CH2CH2CH3. I'm not totally sure.
2
What is happening here is the equation has progressed to kicking out one of the hydrogens and replacing it with a Br. The other Br and the kicked out Hydrogen combine to form HBr
That means (2) should be C
3
I have no idea what 3 is asking you or telling you to do