3 years ago

Describe two ways that thermal energy transfer in earth changes the land

1 answer:

4 0

There are three methods of thermal energy transfer: conduction, convection, and radiation. Air molecules that come into contact with the warmer land and surface of the oceans and lakes increase their thermal energy through conduction.

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If a neutral atom of chlorine has 17 electrons and 18 neutrons, how many protons does it have?

IceJOKER [234]

17, to be neutral it has to have equal number of protons and electrons

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3 years ago

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Which Chemical Reaction is balanced?

cupoosta [38]

Answer:

Explanation:

The letter A is the correct answer

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3 years ago

A chemical compound in which ions are held together in a lattice structure by ionic bonds

ehidna [41]

Answer:

Ionic compounds contain ions and are held together by the attractive forces among the oppositely charged ions

Explanation:

Common salt (sodium chloride) is one of the best-known ionic compounds. Molecular compounds contain discrete molecules, which are held together by sharing electrons (covalent bonding).

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2 years ago

A flask contains a mixture of hydrogen gas and water vapor at STP. If the pressure of the water vapor is 19.5 mmHg, then what is

horrorfan [7]

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I would say A but not sure

Explanation:

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2 years ago

Identify the species that was reduced in the titration reaction. Justify answer in terms of oxidation number 6h+(aq)+2mno4−(aq)+

egoroff_w [7]

Answer:

Explanation:

Reaction given

6 H⁺ + 2 MnO₄⁻ + 5 (COOH)₂ = 10CO₂ +8H₂O + 2 Mn⁺²

Oxidation number of Mn in MnO₄⁻

= x - 4 x 2 = -1

x = 8 -1

+ 7

Oxidation no of Mn in Mn⁺² = +2

So its oxidation no is decreased from + 7 to + 2 . Hence it is reduced.

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3 years ago