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sammy [17]
3 years ago
5

hich of the following is TRUE? Group of answer choices A neutral solution does not contain any H3O+ or OH- A neutral solution co

ntains [H2O] = [H3O⁺] A basic solution has [OH⁻] > [H3O⁺] An acidic solution has [H3O⁺] > [H2O] A basic solution does not contain H3O+
Chemistry
1 answer:
Studentka2010 [4]3 years ago
8 0

Answer:

a basic solution has [OH-] > [H3O+]

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A student heats a liquid on a burner. What happens to the portion of liquid that first begins to warm?
Natalija [7]
I believe it becomes less dense, bc when you heat something it’s molecules spread further apart.
8 0
3 years ago
Read 2 more answers
A sample of gas occupies a volume of 61.5 mL . As it expands, it does 130.1 J of work on its surroundings at a constant pressure
Lesechka [4]

Answer:

the final volume of the gas is V_2 = 1311.5 mL

Explanation:

Given that:

a sample gas has an initial volume of 61.5 mL

The workdone = 130.1 J

Pressure = 783 torr

The objective is to determine the final volume of the gas.

Since the process does 130.1 J of work on its surroundings at a constant pressure of 783 Torr. Then, the pressure is external.

Converting the external pressure to atm ; we have

External Pressure P_{ext}:

P_{ext} = 783 \ torr \times \dfrac{1 \ atm}{760 \ torr}

P_{ext} = 1.03 \ atm

The workdone W = P_{ext}V

The change in volume ΔV= \dfrac{W}{P_{ext}}

ΔV = \dfrac{130.1 \ J  \times \dfrac{1 \ L  \ atm}{ 101.325 \ J}  }{1.03 \ atm }

ΔV = \dfrac{1.28398717 }{1.03  }

ΔV = 1.25 L

ΔV = 1250 mL

Recall that the initial  volume = 61.5 mL

The change in volume V is \Delta V = V_2 -V_1

-  V_2= -  \Delta V  -V_1

multiply through by (-), we have:

V_2=   \Delta V+V_1

V_2 =  1250 mL + 61.5 mL

V_2 = 1311.5 mL

∴ the final volume of the gas is V_2 = 1311.5 mL

5 0
3 years ago
HELP ASAP
In-s [12.5K]

Answer:

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Explanation:

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8 0
2 years ago
Which element has higher ionization energy? chlorine or carbon
PtichkaEL [24]

Answer:

chlorine has higher ionization than carbon

Explanation:

Chlorine is only one row below carbon, but it is three columns to the right in this case the IP of chlorine would be predicted to be greater than the IP of carbon.

3 0
3 years ago
How many moles are in sample containing 2.71 x 10^24 atoms of iron?
Deffense [45]

Answer:

4.5 moles

Explanation:

One mole is equal to 6.022 x 10^23 atoms

2.71 x 10^24 atoms * 1 mol/ 6.022 x 10^23 atoms = 4.5 moles

5 0
3 years ago
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