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4 years ago

Select whether each example of scientific communication represents a primary source or a secondary source.

Chemistry

1 answer:

Rainbow [258]4 years ago

4 0

Answer:

1. secondary source

2.primary source

3.primary source

4.secondary source

5.secondary source

e2020

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Dr. Tate and Dr. Ramirez are observing the effects of a type of solar activity that has reached the planet Jupiter. What solar a

NISA [10]

Answer:

d. solar winds

Explanation:

Dr. Tate and Dr. Ramirez are observing solar winds coming from the sun. Solar winds occurs naturally in which the particles such as electrons and photons releases from the surface of the sun into the space. These solar winds moves in the solar system and interact with planets of the solar system. Dr. Tate and Dr. Ramirez are the two well known scientist observing the effects of solar winds that has reached the planet Jupiter.

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3 years ago

Question 11 of 16 V

user100 [1]

Answer:

Explanation:

How many moles of HCI will just react with 0.424 g Ba(OH)2?

A) 4.94 x 10 mol

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3 years ago

Calculate how much Kool-aid you will need to make 0.5 L of each of the following solutions: 0.1M, 0.4M, & 0.7M.

icang [17]

Answer:

the 4th option

Explanation:

because i said so

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3 years ago

The change of state from a gas to a liquid. *

netineya [11]

The process of a gas to a liquid is called condensation

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3 years ago

Read 2 more answers

is a polyprotic acid. Write balanced chemical equations for the sequence of reactions that carbonic acid can undergo when it's d

Burka [1]

Answer:

H₂CO₃ H₂O ⇄ HCO₃⁻ + H₃O⁺ Ka1

HCO₃⁻ + H₂O ⇄ CO₃⁻² + H₃O⁺ Ka2

CO₃⁻² + H₂O ⇄ HCO₃⁻ + OH⁻ Kb1

HCO₃⁻ + H₂O ⇄ H₂CO₃ + OH⁻ Kb2

Explanation:

Formula for carbonic acid is: H₂CO₃

It is a dyprotic acid, because it can release two protons. We can also mention that is a weak one. The equilibrums are:

H₂CO₃ H₂O ⇄ HCO₃⁻ + H₃O⁺ Ka1

HCO₃⁻ + H₂O ⇄ CO₃⁻² + H₃O⁺ Ka2

When the conjugate strong bases, carbonate and bicarbonate take a proton from water, the reactions are:

CO₃⁻² + H₂O ⇄ HCO₃⁻ + OH⁻ Kb1

HCO₃⁻ + H₂O ⇄ H₂CO₃ + OH⁻ Kb2

Notice, that bicarbonate anion can release or take a proton to/from water. This is called amphoteric,

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3 years ago