Science Midterm Quiz Challenge

Froggy Jumps

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Test your knowledge on key science concepts for the midterm exam!

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sara

Alemania

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Froggy Jumps Science Midterm Quiz ChallengeVersión en línea Test your knowledge on key science concepts for the midterm exam! por sara 1 What is a chemical reaction? a A process where substances change into new substances. b A mixture of elements. c A physical change in matter. 2 What observations indicate a reaction has taken place? a No change in color. b Color change, gas production, temperature change. c Increase in mass. 3 Is the mass of reactants equal to products in a reaction? a No, mass is lost. b Yes, according to the law of conservation of mass. c No, products are always heavier. 4 What pH range indicates an acidic substance? a pH equal to 7. b pH less than 7. c pH greater than 7. 5 How does a universal indicator show pH? a It changes color based on the pH level. b It produces gas. c It changes temperature. 6 What properties apply to acids? a Sour taste, pH lower than 7, reacts with metals. b Corrosive, reacts with alkalis. c Bitter taste, pH higher than 7. 7 What is acid rain? a Rain with high levels of acids that harm the environment. b Rain that is always warm. c Rain with high mineral content. 8 What is the general word equation for metal + acid? a Metal + Acid → Water + Salt. b Metal + Acid → Oxygen + Salt. c Metal + Acid → Salt + Hydrogen. 9 How can you test if a gas is hydrogen? a It burns with a blue flame. b By using a lit splint; it makes a 'pop' sound. c It turns water blue. 10 What is the general word equation for acid + metal hydroxide? a Acid + Metal Hydroxide → Gas + Water. b Acid + Metal Hydroxide → Salt + Water. c Acid + Metal Hydroxide → Metal + Water.

Froggy Jumps

Science Midterm Quiz ChallengeVersión en línea

Test your knowledge on key science concepts for the midterm exam!

por sara

What is a chemical reaction?

A process where substances change into new substances.

A mixture of elements.

A physical change in matter.

What observations indicate a reaction has taken place?

No change in color.

Color change, gas production, temperature change.

Increase in mass.

Is the mass of reactants equal to products in a reaction?

No, mass is lost.

Yes, according to the law of conservation of mass.

No, products are always heavier.

What pH range indicates an acidic substance?

pH equal to 7.

pH less than 7.

pH greater than 7.

How does a universal indicator show pH?

It changes color based on the pH level.

It produces gas.

It changes temperature.

What properties apply to acids?

Sour taste, pH lower than 7, reacts with metals.

Corrosive, reacts with alkalis.

Bitter taste, pH higher than 7.

What is acid rain?

Rain with high levels of acids that harm the environment.

Rain that is always warm.

Rain with high mineral content.

What is the general word equation for metal + acid?

Metal + Acid → Water + Salt.

Metal + Acid → Oxygen + Salt.

Metal + Acid → Salt + Hydrogen.

How can you test if a gas is hydrogen?

It burns with a blue flame.

By using a lit splint; it makes a 'pop' sound.

It turns water blue.

What is the general word equation for acid + metal hydroxide?

Acid + Metal Hydroxide → Gas + Water.

Acid + Metal Hydroxide → Salt + Water.

Acid + Metal Hydroxide → Metal + Water.

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Science Midterm Quiz Challenge

Froggy Jumps

Sobre esta actividad

Creada por

Descarga la versión para jugar en papel

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Science Midterm Quiz ChallengeVersión en línea

por sara

What is a chemical reaction?

What observations indicate a reaction has taken place?

Is the mass of reactants equal to products in a reaction?

What pH range indicates an acidic substance?

How does a universal indicator show pH?

What properties apply to acids?

What is acid rain?

What is the general word equation for metal + acid?

How can you test if a gas is hydrogen?

What is the general word equation for acid + metal hydroxide?

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