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3 years ago

What do the name and formula of a molecular compound describe?

1 answer:

Nookie1986 [14]3 years ago

5 0

The name along with the formula in a molecular compound describe the number of atoms in a molecular compound along with the type that it is. Sometimes even Roman numerals are utilized to distinguish between different ions of transition metals. For example:

LiCl --> Lithium Chloride
PbSO4--> Lead Sulfate
Na3N--> Sodium Nitride
BaO--> Barium Oxide
P2O5--> Diphosphorus Pentaoxide

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How would you balance the following equation NaOh + H2CO3=Na2CO3+H2O ?

mamaluj [8]

Answer: put 2 in front of NaOH and 2 also in front of H2O

Explanation: 2NaOH + H2CO3 —> Na2CO3 + 2H2O

8 0

3 years ago

Atoms of Ca and S would be expected to react in a ratio of<br> A) 1:1<br> B) 1:2<br> C)2:1<br> D)3:1

VMariaS [17]

Answer:

Option A = 1:1

Explanation:

The atoms of calcium and sulphur when react their ration is 1:1. The charge on calcium is +2 and on sulphur is -2.

Ca⁺²S⁻²

The +2 and -2 charges are cancel out and overall charge will be zero.

CaS

so their atomic ratio will be 1:1

7 0

3 years ago

Examine the chemical reaction. What coefficient of O2 should be added so the number of atoms of oxygen is conserved on both side

Fed [463]

Answer:

Explanation:

3 0

3 years ago

Read 2 more answers

3. If 90.0 grams of barium chloride react with sulfuric acid, how many

PtichkaEL [24]

Answer:

The answer to your question is 100.8 g

Explanation:

Data

mass of Barium chloride = 90 g

mass of Barium sulfate = ?

Balanced chemical reaction

BaCl₂ + H₂SO₄ ⇒ BaSO₄ + 2HCl

Process

1.- Calculate the molar mass of BaCl₂ and BaSO₄

BaCl₂ = 137.3 + (2 x 35.5) = 208.3g

BaSO₄ = 137.3 + 32 + (16 x 4) = 233.3g

2.- Use proportions to find the mass of BaSO₄

208.3 g of BaCl₂ --------------------- 233.3 g of BaSO₄

90 g of BaCl₂ --------------------- x

x = (90 x 233.3) / 208.3

x = 20997/ 208.3

x = 100.8 g

3.- Conclusion

There will be produced 100.8 g of BaSO₄

4 0

3 years ago

N the reaction Mg + 2HCl -> MgCl2 + H2 which element’s oxidation number does not change?

BartSMP [9]

Answer:- Oxidation number of Cl does not change as it is -1 on both sides.

Explanations:- oxidation number of Mg on reactant side is 0 as it is in its elemental form(not combined with another element).

Oxidation number of hydrogen in its compounds is +1, so if H is +1 in HCl the oxidation number of Cl is -1 as the sum has to be zero.

On product side, Mg oxidation number is +2 as the oxidation number of alkaline earth metals in their compounds is +2.

Two Cl are present in magnesium chloride, so if Mg is +2 then Cl is -1.

Oxidation number of H on product side is 0 as it is present in its elemental for, $H_2$ ,

So, it is only chlorine(Cl) whose oxidation number does not change for the given equation.

4 0

3 years ago