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2 years ago

What is the chemical name of the compound Na2CO3? Use the list of polyatomic ions and the periodic table to help you answer.

Chemistry

2 answers:

m_a_m_a [10]2 years ago

5 0

Answer:

I believe the answer is B. Sodium carbonate

KonstantinChe [14]2 years ago

3 0

Answer : The correct option is, (B) Sodium carbonate

Explanation :

$Na_2CO_3$ It is an ionic compound because sodium element is a metal and carbonate ion is polyatomic ion. When the metal element combine with the polyatomic ion they form ionic compound.

$CO_3^{2-}$ = carbonate ion

While naming of ionic compounds, we write cation first then anion. Here anion is a polyatomic ion. So, the name of the compound is, sodium carbonate.

Hence, the correct option is, (B) Sodium carbonate

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2 years ago

Stochiometry .How many grams of CO2 is produced when excess CS2 reacts with 4 mols of O2? CS2+O2-SO2 Please balance equation.

Travka [436]

Mass of CO₂ produced : 58.67 g

<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

CS₂ + 3O₂ -------> CO₂ + 2SO₂

mol of CO₂ based on mol of O₂ as a limiting reactant(CS₂ as an excess reactant)

From the equation, mol ratio of mol CO₂ : mol O₂ = 1 : 3, so mol CO₂ :

$\tt \dfrac{1}{3}\times 4=\dfrac{4}{3}$

mass CO₂ (MW= 44 g/mol) :

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2 years ago