writing of symbol equation

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10.8.writing of symbol equation

writing the formula of elements ^,

the formula of metal like the symbol (single atom )Na ,Mg ,Al
the formula of nonmetal depends on the state of matter
solid non-metal can be (single atom) C,
liquid non metal (diatomic ) Br₂
gas non metal (diatomic ) N₂

Open Ended

what is the chemical formula of sodium

Type response here

Open Ended

what is the chemical formula of chlorine

Type response here

Open Ended

what is the chemical formula of oxygen

Type response here

Open Ended

calcium

Type response here

Open Ended

carbon

Type response here

Open Ended

Iodine

Type response here

Open Ended

magnesium

Type response here

Open Ended

copper

Type response here

Open Ended

potassium

Type response here

the formula of compound depends on valency(oxidation no.) of its elements

Multiple Choice

Element or compound?

O₂

Element

Compound

Multiple Choice

Element or compound?
O₂

Element

Compound

how to write the formula of compound ?

Multiple Choice

What is the chemical formula of Magnesium chloride?

MgCl

MgCl₂

MgC

MgC₂

Multiple Choice

What is the left part of a chemical equation called?
2H_{2 +}O₂ --> 2H₂O

Reactants

Products

Yields

Chemical Equation

Multiple Choice

How many carbon atoms (C) are in a CO₂molecule?

Multiple Choice

How many Hydrogen atoms (H) are in a molecule of H₂O?

Multiple Choice

How many elements are represented in the products in the equation?

Multiple Choice

How many atoms are represented in the reactants in the equation?

Multiple Choice

Balance this equation.
_Mg + _Cl₂--> _MgCl₂

1, 2,1

already balanced

2,1,1

1,1,2

Multiple Choice

Write a complete balanced reaction for the following.
Calcium metal reacts with oxygen gas to form a solid

2 Ca (s) + O₂ (g) --> 2 CaO (s)

2 Ca (s) + 2 O (g) --> 2 CaO (s)

Ca (s) + O₂ (g) --> 2 CaO (s)

Ca (s) + O₂ (g) --> CaO₂ (s)

Multiple Choice

What is the right part of a chemical equation called...
2H_{2 +}O₂ --> 2H₂O

Reactants

Products

Yields

Chemical Equation

Multiple Choice

When hydrogen reacts with sulfur, a smelly gas is produced:

H₂(g) + 2S(s) → 2HS

H₂(g) + S(s) → H₂S(g)

H(g) + S(s) → HS(g)

2H(g) + S(s) → H₂S(g)

Multiple Choice

Iron reacts with sulfur to produce iron(II) sulfide powder.

2Fe(s) + S(s) → Fe₂S(s)

Fe(s) + S(s) → FeS(s)

Fe(s) + S(g) → FeS(s)

4Fe(s) + S₂(g) → 2Fe₂S

Multiple Choice

Sodium reacts with chlorine to produce sodium chloride.

NaCl(s) → Cl(g) + Na(s)

Na(s) + CO₂(g) → NaCO₂(s)

2Na(s) + Cl₂(g) → 2NaCl(s)

Na(s) + Cl(g) → NaCl

Multiple Choice

Magnesium can be burned in air to produce solid magnesium oxide.

2Mg(s) + O₂(g)→ 2MgO(s)

Mg(s) + O(g) → MgO(s)

2Mg(s) + CO₂(g)→ 2MgO(s) + C(s)

2Mg(s) + O₂(g)→ Mg₂O₂(s)

Multiple Choice

What is the left part of a chemical equation called?
2H_{2 +}O₂ --> 2H₂O

Reactants

Products

Yields

Chemical Equation

10.8.writing of symbol equation

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