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2 years ago

15

At standard pressure, the difference between the freezing point and the boiling point of water, in Kelvin degrees, is D. 373 A.

100 B. 180 C. 273

1 answer:

zepelin [54]2 years ago

6 0

Your answer would be A.100

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What is the molarity of a solution that contains 14 moles of solute and 2 liters of solution?

Nata [24]

Answer:

7 M

Explanation:

The molarity is defined as "moles per liter." Here, it is ...

(14 moles)/(2 liters) = 7 moles/liter = 7 M

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3 years ago

A balloon is filled with 100.0 Lair at 1.300 atm pressure. what pressure is needed to change the volume to 25.00 L

valentinak56 [21]

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2 years ago

1. BaBr2(aq) + H2SO4(aq) →?<br> please balance the equation and predict the products

Andrew [12]

Answer:

BaBr2 (aq) + H2SO4 (aq) → BaSO4 (s) + 2 HBr (aq)

Explanation:

This is a precipitation reaction: BaSO4 is the formed precipitate.

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2 years ago

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2 years ago

Automobile bodies contain significant amounts of iron. The iron is protected by the addition of zinc. This is called galvanizati

Oksana_A [137]

<u>Answer:</u> The balanced chemical equation is written below.

<u>Explanation:</u>

Galvanization is defined as the process in which a protective layer of zinc is applied to iron or steel to prevent the metal from rusting.

Zinc prevents the oxidation of iron and acts as a reducing agent in the process.

The half reaction for the process follows:

<u>Oxidation half reaction:</u> $Zn\rightarrow Zn^{2+}+2e^-$

<u>Reduction half reaction:</u> $Fe^{2+}+2e^-\rightarrow Fe$

Net chemical equation: $Zn+Fe^{2+}\rightarrow Zn^{2+}+Fe$

Hence, the balanced chemical equation is written above.

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2 years ago