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natta225 [31]
3 years ago
8

A positively charged ion has

Chemistry
1 answer:
Burka [1]3 years ago
4 0
A positively charged ion is referred to as a cation, it is formed through the loss of valence electrons.
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Mass is measured against a standard by using a balance. <br> a. True<br> b. False
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Mass is measured against a standard by using a balance. The statement given above is a fact. Therefore the answer among the choices is letter "A" or "A. True". I hope this helps you on your assignment. 
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if .709 j of heat is added to water and cause the temperature to go up by .036 degrees C what mass of water is present
liberstina [14]

Answer:

0.00471 grams H₂O

Explanation:

To determine the mass, you need to use the following equation:

Q = mcΔT

In this equation,

-----> Q = energy/heat (J)

-----> m = mass (g)

-----> c = specific heat capacity (J/g°C)

-----> ΔT = temperature change (°C)

The specific heat capacity of water is 4182 J/g°C. You can plug the given values into the equation and simplify to isolate "c".

Q = 0.709 J                            c = 4182 J/g°C

m = ? g                                   ΔT = 0.036 °C

Q = mcΔT                                                    <----- Equation

0.709 J = m(4182 J/g°C)(0.036 °C)            <----- Insert values

0.709 J = m(150.552)                                 <----- Multiply 4182 and 0.036

0.00471 = m                                              <----- Divide both sides by 150.552

8 0
1 year ago
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I really hope this helps I’ve been there too and I’m just doing this so I get the 20 words and I have the picture

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Answer:

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Explanation:

Potassium Bromide (KBr)

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Answer: b

Explanation:

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