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3 years ago

Find three acids and three bases used in your home.

1 answer:

8 0

Acids

Acetic acid in vinegar, used in cooking - CH₃COOH
Citric acid in lemons and oranges - C₆H₈O₇
Carbonic Acid in soft drinks - H₂CO₃

Bases

Sodium Hypochlorite is found in bleach - NaClO
Sodium Hydroxide found in drain cleaners - NaOH
Sodium bicarbonate, also known as baking soda which is used in cooking - NaHCO₃

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Which has the highest density, water at 0c, water at 4c, water at 6c, water at 8c

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Answer:

water at 0C

Explanation:

The colder the water is, the denser it is, so the water here with the lowest temperature, is 0C

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3 years ago

An object was measured by a worker as

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<h2>Answer - 0.73%</h2>

14.6 .2

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Which compound contains both sigma and pi bonds

Misha Larkins [42]

Any compound with multiple covalent bonds

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How many grams of KCl is needed to make .75 L of a 1 M solution of KCl?

Zielflug [23.3K]

Answer:

The answer to your question is 25.9 g of KCl

Explanation:

Data

Grams of KCl = ?

Volume = 0.75 l

Molarity = 1 M

Formula

$Molarity = \frac{number of moles}{volume}$

Solve for number of moles

$Number of moles = Molarity x volume$

Substitution

Number of moles = 1 x 0.75

Simplification

Number of moles = 0.75 moles

Molecular mass KCl = 39 + 35.5 = 34.5

Use proportions to find the grams of KCl

34.5 g of KCl ---------------- 1 mol

x ---------------- 0.75 moles

x = (0.75 x 34.5) / 1

x = 25.9 g of KCl

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3 years ago