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natali 33 [55]
3 years ago
10

What is the Hazard of Silicon?

Chemistry
1 answer:
hoa [83]3 years ago
6 0

Answer:

Silicon dust has little adverse affect on lungs and does not appear to produce significant organic disease or toxic effects when exposures are kept beneath exposure limits. Silicon may cause chronic respiratory effects. Crystalline silica (silicon dioxide) is a potent respiratory hazard.

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The reaction takes place in water. What happens to the equilibrium when the pressure is increased? a)It favors formation of prod
OLga [1]

Answer:

I don't really get the options but it favoures the reactant side.

Explanation:

Increasing pressure favours the side with fewer moles of gas while decreasing pressure favours the side with the more moles of gas. E.g

If there is 0 moles of gas particles in the reactant side and 1 mole of gas particle in the product side, increasing pressure favours the reactants while decreasing pressure favours the product side.

With the explanations I have made, I hope the question is now clear to you.

6 0
4 years ago
For the following aqueous reaction, complete and balance the molecular equation and write a net iconic equatio, making sure to i
pav-90 [236]

Answer:

Balance molecular equation:

K2CO3(aq) + Sr(NO3)2(aq) → SrCO3(s) + 2KNO3(aq)

Net ionic equation:

CO3∧-2(aq) + Sr∧+2(aq) → SrCO3(s)

Explanation:

Potassium carbonate = K2CO3

Strontium nitrate = Sr(NO3)2

Chemical equation:

K2CO3 + Sr(NO3)2 → SrCO3 + KNO3

Balance chemical equation with physical states:

K2CO3(aq) + Sr(NO3)2(aq) → SrCO3(s) + 2KNO3(aq)

Ionic equation:

2K+(aq) + CO3∧-2(aq) + Sr∧+2(aq) + 2NO∧-3(aq) → SrCO3(s) + 2K+(aq) + 2NO∧-3(aq)

Net ionic equation:

CO3∧-2(aq) + Sr∧+2(aq) → SrCO3(s)

2K+ and 2NO∧-3 ions are spectator ions that's way these are not written in net ionic equation.

Spectator ions:

These are the ions that are present same on both side of chemical reaction and does not effect the equilibrium.

6 0
3 years ago
Electronegativity tends to increase from left to right across a row, because A. the number of energy levels increases. B. the sh
goblinko [34]
C. is the answer I believe you are looking for

6 0
3 years ago
Read 2 more answers
Point E is located at (-2, 2) and point F is located at (4-6). What is the distance between
Flauer [41]

Answer:

10

Explanation:

Given endpoints:

            E (-2,2) and F(4, -6)

To find the distance between two points;

   Use the expression below;

 D = \sqrt{(y_{2} - y_{1}  )^{2} + (x_{2} -  x_{1})^{2}  }

x₁  = -2,

x₂ = 4

y₁ = 2

y₂ = -6

  Insert the parameters and solve;

       D = \sqrt{(-6 - 2  )^{2} + (4 -+ 2)^{2}  }

      D = \sqrt{64+ 36 }   = 10

5 0
3 years ago
Why is rain water slightly acidic
viva [34]

Answer:

Explanation:

Natural Rain:

"Normal" rainfall is slightly acidic because of the presence of dissolved carbonic acid. ... The gases of sulfur oxides and nitrogen oxides are chemically converted into sulfuric and nitric acids. The non-metal oxide gases react with water to produce acids (ammonia produces a base).Natural Rain:

"Normal" rainfall is slightly acidic because of the presence of dissolved carbonic acid. ... The gases of sulfur oxides and nitrogen oxides are chemically converted into sulfuric and nitric acids. The non-metal oxide gases react with water to produce acids (ammonia produces a base).

4 0
3 years ago
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