Chemistry

Chemistry

Assessment

Flashcard

Chemistry

9th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the element with the symbol Ne?

Back

Neon

2.

FLASHCARD QUESTION

Front

What is the chemical name of NH₄OH?

Back

Ammonium hydroxide

3.

FLASHCARD QUESTION

Front

What is the mass ratio of hydrogen to oxygen in H₂O?

Back

1:8

4.

FLASHCARD QUESTION

Front

What is the formula of Ammonium phosphate?

Back

(NH₄)₃PO₄

5.

FLASHCARD QUESTION

Front

Which of the following is a polyatomic ion?

Back

Sulfate (SO₄²⁻)

6.

FLASHCARD QUESTION

Front

What is a chemical element?

Back

A substance that cannot be broken down into simpler substances by chemical means.

7.

FLASHCARD QUESTION

Front

Define a compound in chemistry.

Back

A substance formed when two or more elements are chemically bonded together.

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