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umka21 [38]
3 years ago
12

What is the correct name of a compound that is formed by Si and O​

Chemistry
1 answer:
slamgirl [31]3 years ago
7 0

Answer:

Silicon dioxide

Explanation:

If it's just Si and O that is SiO it will be called Silicon monooxide though normally SiO2 is formed which is Silicon dioxide.

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If the mass of the products measured 120g what would the mass of the reactants
Ket [755]
It has to be 120g because each and every chemical equation has to satisfy the law of conservation of mass, ie sum of mass of products is always equal to the sum of masses of reactants. If reactants=120g, then products=120g
5 0
3 years ago
In a reaction between 6.0 g of oxygen gas, 4.0 g of hydrogen gas, and 5.0 g of solid sulfur at standard temperature and pressure
nikitadnepr [17]

Answer:

The limiting reagent is the O₂

Explanation:

We can think, this reaction

2O₂(g) + H₂(g) + S(s)  →  H₂SO₄

Mole of each = Mass / molar mass

6 g / 32 g/m = 0.187 mole O₂

4g / 2 g/m = 2 mole H₂

5g / 32.06 g/m = 0.156 mole S

Ratio between reactants is 2:1:1, 1:2:1, 1:1:2

For 2 mole of O₂, I need to react 1 mol of H₂ and 1 mol of S

0.187 mole of O₂, I need (the half)

0.093 mole of H₂ and 0.093 mole of S

For 1 mole of H₂, I need to react 2 mole of O₂ and 1 mol of S

2 mole of H₂, I need (the double of O₂ and the same for S)

4 mole of O₂ ; 2 mole of S

For 1 mol of S, I need to react 1 mol of H₂ and 2 mole of O₂

0.156 mole I need the same amount for H₂ and the double for O₂

0.156 mole of H₂ and 0.312 mole of O₂

In both cases, I can't make react, all the mass of oxygen, so this is the limiting reagent.

6 0
3 years ago
Among the alkaline earth metals in Group 2A/A, which is more reactive - beryllium (element 4) or strontium (element 38)?
umka2103 [35]

Answer:

Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). They are harder and less reactive than the alkali metals of Group 1A.

Explanation:

5 0
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Which three words best describe the composition of the inner planets? solid, smooth, giant rocky, solid, dense giant, dense, gas
Lapatulllka [165]

Answer:

solid, rocky, dense

Explanation:

3 0
3 years ago
Read 2 more answers
E. the compound sodium sulfate is soluble in water. when this compound dissolves in water what ion would be present in solution?
dimaraw [331]
Sodium ions and sulfate ions shall be present in the solution.

5 0
3 years ago
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