Physical Science Midterm

Physical Science Midterm

Assessment

Flashcard

Chemistry

9th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What are noble gases and why are they considered inert?

Back

Noble gases are elements in Group 18 of the periodic table. They are considered inert because their outermost energy level is full, making them stable and unlikely to react with other elements.

2.

FLASHCARD QUESTION

Front

What is an ionic bond?

Back

An ionic bond is a type of chemical bond that occurs between oppositely charged ions. It typically forms between metals, which lose electrons, and nonmetals, which gain electrons.

3.

FLASHCARD QUESTION

Front

What does the law of conservation of mass state?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction. The total mass of reactants equals the total mass of products.

4.

FLASHCARD QUESTION

Front

What does the chemical formula H2O represent?

Back

The chemical formula H2O represents a water molecule, which contains two hydrogen atoms and one oxygen atom.

5.

FLASHCARD QUESTION

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product.

6.

FLASHCARD QUESTION

Front

What is the significance of the periodic table in chemistry?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties, helping to predict their behavior in reactions.

7.

FLASHCARD QUESTION

Front

What are the main characteristics of metals?

Back

Metals are typically shiny, good conductors of heat and electricity, malleable, ductile, and tend to lose electrons during chemical reactions.

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