Which of the following equations is balanced? 1. $$H_2 + O_2 \rightarrow H_2O$$ 2. $$2H_2 + O_2 \rightarrow 2H_2O$$ 3. $$H_2 + 2O_2 \rightarrow 2H_2O$$ 4. $$2H_2 + 2O_2 \rightarrow 2H_2O$$

$$2H_2 + O_2 \rightarrow 2H_2O$$

Why does atomic radius decrease across a period?

Increased nuclear charge pulls electrons closer

Which of the following is the correct balanced equation for the reaction of aluminum with hydrochloric acid? Options: $$Al + HCl \rightarrow AlCl_3 + H_2$$ , $$2Al + 6HCl \rightarrow 2AlCl_3 + 3H_2$$ , $$Al + 3HCl \rightarrow AlCl_3 + 3H_2$$ , $$2Al + 3HCl \rightarrow 2AlCl_3 + 3H_2$$

$$2Al + 6HCl \rightarrow 2AlCl_3 + 3H_2$$

Which is the correct balanced equation for the combustion of methane (CH_4)? Options: $$CH_4 + O_2 \rightarrow CO_2 + H_2O$$ , $$CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O$$ , $$2CH_4 + O_2 \rightarrow 2CO_2 + 2H_2O$$ , $$CH_4 + O_2 \rightarrow CO + H_2O$$

$$CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O$$

Why are alkali metals highly reactive?

They have one electron in their outer shell.

Relationship between pH and hydrogen ion concentration?

As pH increases, $$[H^+]$$ decreases

Which of the following is a correct statement about the periodic table?

Elements in the same group have the same number of valence electrons

Which is the correct balanced equation for the reaction of calcium with water?

$$Ca + 2H_2O \rightarrow Ca(OH)_2 + H_2$$

Chemistry Final Flash Cards Flashcards

Student preview

30 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the center of an atom called?

Back

Nucleus

2.

FLASHCARD QUESTION

Front

Which subatomic particle has a negative charge?

Back

Electron

3.

FLASHCARD QUESTION

Front

What is the atomic number of carbon?

Back

6

4.

FLASHCARD QUESTION

Front

Which element is located in Group 1, Period 2 of the periodic table?

Back

Lithium

5.

FLASHCARD QUESTION

Front

What is the chemical symbol for sodium?

Back

Na

6.

FLASHCARD QUESTION

Front

Which of the following is a chemical change? Melting ice, Dissolving sugar in water, Burning wood, Breaking glass

Back

Burning wood

7.

FLASHCARD QUESTION

Front

What is the product of the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)?

Back

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Similar Resources on Wayground

23 questions

Cereal Grains and Gluten Structure

Flashcard

•

KG

22 questions

Vocabulary Flashcards

Flashcard

•

KG

22 questions

Sustainable Event Management and Environmental Impacts

Flashcard

•

KG

17 questions

India Sports

Flashcard

•

8th - 12th Grade

22 questions

Genetics: Mendel's Laws

Flashcard

•

9th - 12th Grade

20 questions

Unit 3. What the Future Holds

Flashcard

•

9th - 12th Grade

26 questions

Unit 3 Flashcards

Flashcard

•

9th - 12th Grade

20 questions

Side by Side Unit 1

Flashcard

•

9th - 12th Grade

Popular Resources on Wayground

5 questions

This is not a...winter edition (Drawing game)

Quiz

•

1st - 5th Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

10 questions

Identify Iconic Christmas Movie Scenes

Interactive video

•

6th - 10th Grade

20 questions

Christmas Trivia

Quiz

•

6th - 8th Grade

18 questions

Kids Christmas Trivia

Quiz

•

KG - 5th Grade

11 questions

How well do you know your Christmas Characters?

Lesson

•

3rd Grade

14 questions

Christmas Trivia

Quiz

•

5th Grade

20 questions

How the Grinch Stole Christmas

Quiz

•

5th Grade

Discover more resources for Chemistry

20 questions

Ionic Compound Nomenclature

Quiz

•

9th - 12th Grade

42 questions

Chemistry Final Exam Review

Quiz

•

9th - 12th Grade