What is the smallest particle of an element that can exist or enter into chemical combination?

Quiz Arena __Chemistry Quiz

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Eze Timothy
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Molecule
Atom
Compound
Ion
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a positively charged ion?
Cation
Anion
Molecule
Element
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the empirical formula of a compound?
The formula for gases only
The formula for ionic compounds only
The formula showing the exact number of atoms
The simplest formula representing its composition
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molar mass of water (H2O)?
20 g/mol
16 g/mol
18 g/mol
22 g/mol
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a method for balancing chemical equations?
Trial and error
Using coefficients
Ignoring the products
Using only one side
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mole fraction of a component in a solution?
The percentage of the component in the solution
The volume of the component divided by the total volume
The mass of the component divided by the total mass
The number of moles of the component divided by the total moles
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the theoretical yield in a chemical reaction?
The amount of reactants used
The amount of excess reactants
The actual amount of product obtained
The maximum amount of product that can be formed
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