Video Quiz: Theory of Acids and Bases PrepaTec CCM (1º - Bachillerato - chemistry - acids and bases - ph scale

Créé par

Laura Aurora Nuñez Sierra

Mexico

Ce jeu est une version de

Theory of Acids and Bases PrepaTec CCM (ENGLISH)


Theory of Acids and Bases PrepaTec CCMVersion en ligne In this activity, we will remember the different theories about acids and bases as well as their characteristics, pay attention to the video and answer the questions. par Laura Aurora Nuñez Sierra 1 Which are the correct pH scales for acids, bases/alkaline and neutral substances? a Acids pH >7, bases/alakline pH <7, neutral pH=6.5-7.5 b Acids pH >7, bases/alkaline pH <7, neutral pH=7.0 c Acids pH <7, bases/alkaline pH >7, neutral pH=7.0 d Acids pH <7, bases/alkaline pH >7, neutral pH=6.5-7.5 2 How can we measure quantitatively (numerically) the pH level of a substance? a With a pH meter. b With chemical colorants. c With universal indicator. d With litmus paper. 3 Which are the products of a neutralization reaction between a strong acid and a strong base? a Carbon dioxide and week acid. b Water and salt. c Carbon dioxide and week base. d Salt and hydrogen. 4 Which of the following statements is correct for properties of acids and bases? a Acids are metal corrosive, turn litmus paper red, and taste sour. Bases feel slippery to touch, turn litmus paper blue and have a bitter taste. b Bases are metal corrosive, turn litmus paper red, and taste sour. Acids feel slippery to touch, turn litmus paper blue and have a bitter taste. c Acids are feel slippery to touch, turn litmus paper red, and taste sour. Bases metal corrosive, turn litmus paper blue and have a bitter taste. d Bases feel slippery to touch, turn litmus paper blue and taste sour. Acids are metal corrosive, turn litmus paper red, and have a bitter taste. 5 Which of the following are examples of base/alkaline solutions?? a Stomach acid and drain cleaner (Drano) b Carbonated soft drinks and anti-acids tablets (Tums) c Stomach acid and carbonated soft drinks. d Drain cleaners (Drano) and anti-acids tablets (Tums) 6 According to the Arrhenius theory, which is the correct definition of an acid and a base? a An acid, when dissolved in water, delivers hydrogen ions (H+). A base, when dissolved in water, delivers hydroxide anions (OH-). b A base, when dissolved in water, delivers hydrogen ions (H+). An acid, when dissolved in water, delivers hydroxide ions (OH-). c An acid is a proton donor, and a base is a proton acceptor. A proton is a hydrogen ion (H+) and does not have to be in water. d An acid is a molecule that accepts a pair of electrons, while a base is a molecule that donates a pair of electrons. 7 According to the Brönsted-Lowry theory, which is the correct definition of an acid and a base? a An acid, when dissolved in water, delivers hydrogen ions (H+). A base, when dissolved in water, delivers hydroxide anions (OH-). b An acid is a proton acceptor, and a base is a proton donor. A proton is a hydrogen ion (H+) and does not have to be in water. c An acid is a molecule that accepts a pair of electrons, while a base is a molecule that donates a pair of electrons. d An acid is a proton donor, and a base is a proton acceptor. A proton is a hydrogen ion (H+) and does not have to be in water. 8 According to the Lewis theory, which is the correct definition of an acid and a base? a An acid is a proton donor, and a base is a proton acceptor. A proton is a hydrogen ion (H+) and does not have to be in water. b An acid, when dissolved in water, delivers hydrogen ions (H+). A base, when dissolved in water, delivers hydroxide anions (OH-). c An acid is a molecule that accepts a pair of electrons, while a base is a molecule that donates a pair of electrons. d An acid, when dissolved in water, donates protons. A base, when dissolved in water, accepts protons. Explanation 1 Acids pH 7, neutral pH=7.0 2 To measure quantitatively (numerically) the pH level of a substance, you need to use a pH meter. 3 In a neutralization reactions, the products are water and salt. 4 Acids are metal corrosive, turn litmus paper red, and taste sour. Bases feel slippery to touch, turn litmus paper blue and have a bitter taste. 5 Drain cleaners (Drano) and anti-acids tablets (Tums) are examples of base/alkaline solutions. 6 An acid, when dissolved in water, delivers hydrogen ions (H+). A base, when dissolved in water, delivers hydroxide anions (OH-). 7 An acid is a proton donor, and a base is a proton acceptor. A proton is a hydrogen ion (H+) and does not have to be in water. 8 An acid is a molecule that accepts a pair of electrons, while a base is a molecule that donates a pair of electrons.

Theory of Acids and Bases PrepaTec CCMVersion en ligne

In this activity, we will remember the different theories about acids and bases as well as their characteristics, pay attention to the video and answer the questions.

par Laura Aurora Nuñez Sierra

Which are the correct pH scales for acids, bases/alkaline and neutral substances?

Acids pH >7, bases/alakline pH <7, neutral pH=6.5-7.5

Acids pH >7, bases/alkaline pH <7, neutral pH=7.0

Acids pH <7, bases/alkaline pH >7, neutral pH=7.0

Acids pH <7, bases/alkaline pH >7, neutral pH=6.5-7.5

How can we measure quantitatively (numerically) the pH level of a substance?

With a pH meter.

With chemical colorants.

With universal indicator.

With litmus paper.

Which are the products of a neutralization reaction between a strong acid and a strong base?

Carbon dioxide and week acid.

Water and salt.

Carbon dioxide and week base.

Salt and hydrogen.

Which of the following statements is correct for properties of acids and bases?

Acids are metal corrosive, turn litmus paper red, and taste sour. Bases feel slippery to touch, turn litmus paper blue and have a bitter taste.

Bases are metal corrosive, turn litmus paper red, and taste sour. Acids feel slippery to touch, turn litmus paper blue and have a bitter taste.

Acids are feel slippery to touch, turn litmus paper red, and taste sour. Bases metal corrosive, turn litmus paper blue and have a bitter taste.

Bases feel slippery to touch, turn litmus paper blue and taste sour. Acids are metal corrosive, turn litmus paper red, and have a bitter taste.

Which of the following are examples of base/alkaline solutions??

Stomach acid and drain cleaner (Drano)

Carbonated soft drinks and anti-acids tablets (Tums)

Stomach acid and carbonated soft drinks.

Drain cleaners (Drano) and anti-acids tablets (Tums)

According to the Arrhenius theory, which is the correct definition of an acid and a base?

An acid, when dissolved in water, delivers hydrogen ions (H+). A base, when dissolved in water, delivers hydroxide anions (OH-).

A base, when dissolved in water, delivers hydrogen ions (H+). An acid, when dissolved in water, delivers hydroxide ions (OH-).

An acid is a proton donor, and a base is a proton acceptor. A proton is a hydrogen ion (H+) and does not have to be in water.

An acid is a molecule that accepts a pair of electrons, while a base is a molecule that donates a pair of electrons.

According to the Brönsted-Lowry theory, which is the correct definition of an acid and a base?

An acid, when dissolved in water, delivers hydrogen ions (H+). A base, when dissolved in water, delivers hydroxide anions (OH-).

An acid is a proton acceptor, and a base is a proton donor. A proton is a hydrogen ion (H+) and does not have to be in water.

An acid is a molecule that accepts a pair of electrons, while a base is a molecule that donates a pair of electrons.

An acid is a proton donor, and a base is a proton acceptor. A proton is a hydrogen ion (H+) and does not have to be in water.

According to the Lewis theory, which is the correct definition of an acid and a base?

An acid is a proton donor, and a base is a proton acceptor. A proton is a hydrogen ion (H+) and does not have to be in water.

An acid, when dissolved in water, delivers hydrogen ions (H+). A base, when dissolved in water, delivers hydroxide anions (OH-).

An acid is a molecule that accepts a pair of electrons, while a base is a molecule that donates a pair of electrons.

An acid, when dissolved in water, donates protons. A base, when dissolved in water, accepts protons.

Explanation

Acids pH 7, neutral pH=7.0

To measure quantitatively (numerically) the pH level of a substance, you need to use a pH meter.

In a neutralization reactions, the products are water and salt.

Acids are metal corrosive, turn litmus paper red, and taste sour. Bases feel slippery to touch, turn litmus paper blue and have a bitter taste.

Drain cleaners (Drano) and anti-acids tablets (Tums) are examples of base/alkaline solutions.

An acid, when dissolved in water, delivers hydrogen ions (H+). A base, when dissolved in water, delivers hydroxide anions (OH-).

An acid is a proton donor, and a base is a proton acceptor. A proton is a hydrogen ion (H+) and does not have to be in water.

An acid is a molecule that accepts a pair of electrons, while a base is a molecule that donates a pair of electrons.

Theory of Acids and Bases PrepaTec CCM

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Theory of Acids and Bases PrepaTec CCMVersion en ligne

par Laura Aurora Nuñez Sierra

Which are the correct pH scales for acids, bases/alkaline and neutral substances?

How can we measure quantitatively (numerically) the pH level of a substance?

Which are the products of a neutralization reaction between a strong acid and a strong base?

Which of the following statements is correct for properties of acids and bases?

Which of the following are examples of base/alkaline solutions??

According to the Arrhenius theory, which is the correct definition of an acid and a base?

According to the Brönsted-Lowry theory, which is the correct definition of an acid and a base?

According to the Lewis theory, which is the correct definition of an acid and a base?

Explanation