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Solnce55 [7]
3 years ago
9

What are the 2 common uses for Polonium?

Chemistry
2 answers:
Vinil7 [7]3 years ago
4 0
It’s occasionally used to remove static electricity in machinery or dust from photographic film. it can be used as a lightweight heat source for thermoelectric power in space satellites.
Nataliya [291]3 years ago
3 0
Polonium is occasionally used to remove static electricity in machinery or dust from photographic film. It can also be used as a lightweight heat source for thermoelectric power in space satellites.
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Answer and work for this problem
MArishka [77]
We can write the balanced equation for the synthesis reaction as 
     H2(g) + Cl2(g) → 2HCl(g)

We use the molar masses of hydrogen chloride gas HCl and hydrogen gas H2 to calculate for the mass of hydrogen gas H2 needed:
     mass of H2 = 146.4 g HCl *(1 mol HCl / 36.46 g HCl) * (1 mol H2 / 2 mol HCl) * 
                           (2.02 g H2 / 1 mol H2)                        
                        = 4.056 g H2

We also use the molar masses of hydrogen chloride gas HCl and chlorine gas CL2 to calculate for the mass of hydrogen gas H2:
     mass of CL2 = 146.4 g HCl *(1 mol HCl / 36.46 g HCl) * (1 mol Cl2 / 2 mol HCl) *
                             (70.91 g Cl2 / 1 mol Cl2)
                          = 142.4 g Cl2 

Therefore, we need 4.056 grams of hydrogen gas and 142.4 grams of chlorine gas to produce 146.4 grams of hydrogen chloride gas.
6 0
3 years ago
Plants have functions that make them a(n) ?????????? part of the world. ^Insignificant or vital
olga55 [171]
I don't fully understand your question, but I believe that plants have functions that are vital to the planet. They take sunlight, make it into food for themselves, and release oxygen that we need to survive.
5 0
3 years ago
I need someone to answer this ASAP please!
yan [13]

Answer:

239.15. OR round down 239

Explanation:

3 0
3 years ago
According to the arrhenius concept, if HNO3, were dissolved in water, it would act as?: a. Proton acceptor b. A base c. A source
Alexxandr [17]
Arrhenius concept just states that if a solution dissociates and forms H+ ions then its and acid, but if it dissociates and forms OH- than it's a base.

So the answer to your question would be D. An Acid
5 0
3 years ago
Read 2 more answers
a group of students wants to see how temperature affects the time it takes for spilled water to dry up. in the investigation wat
labwork [276]
The dependent variable would be the spilled water and the independent variable would be how much time it takes for it to dry up:)
3 0
3 years ago
Read 2 more answers
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