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Harlamova29_29 [7]
3 years ago
6

If I add together water and an effervescent tablet, will the total mass before mixing be less than, equal to, or greater than th

e mass after mixing?
Chemistry
2 answers:
snow_tiger [21]3 years ago
7 0

Answer:

the total mass would be greater

Explanation:

adding anything to water will make the mass more

Stels [109]3 years ago
4 0
It would be a greater mass.

When you add things in water it will have a greater mass.
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HELP PLZ!CHEMISTRY.WILL GIVE BRAINLIEST!!!!
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<h3>Further explanation</h3>

Given

1. Reaction

K₂CO₃+2HNO₃⇒ 2KNO₃+H₂O+CO₂

69 g K₂CO₃

2. 0.03 mol/L Na₂CO₃

Required

1. volume of CO₂

2. mass Na₂CO₃

Solution

1. mol K₂CO₃(MW=138 g/mol) :

= 69 : 138

= 0.5

mol ratio of K₂CO₃ : CO₂ = 1 : 1, so mol CO₂ = 0.5

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2. M Na₂CO₃ = 0.03 M

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mol Na₂CO₃ :

= M x V

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= 3.18 g

3 0
3 years ago
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Newman projections are given for two of the conformers of 2-methylbutane, drawn as viewed down the C2-C3 bond. In A the _____ st
schepotkina [342]

The Newman projection gives the view of the molecule. In molecule A the torsional strain and in B steric strain are present because of the gauche methyl group.

<h3>What is a torsional strain?</h3>

The Newman projection depicts the molecules in the head-on view and uses the letters and the lines to represent the molecule. The torsional strain is because of the molecule's resistance to the twisting.

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The diagram for the question is attached below.

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Learn more about torsional strain here:

brainly.com/question/27852131

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Sandra claims that invisible fairies live above the clouds where no one can see, hear or feel them. Which of the
jenyasd209 [6]

Answer: D

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3 years ago
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Liula [17]

Answer:

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7 0
3 years ago
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Which one of the following compounds is insoluble in water?
ki77a [65]

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