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Ratling [72]
2 years ago
8

Laws of conservation of mass/pleases help

Chemistry
1 answer:
umka2103 [35]2 years ago
5 0

Answer:

27g + 33g = 60g

18g + 24g = 42g

Explanation:

The law of conservation of mass states that no matter can be destroyed or created.  Because of this, you are simply making both sides equal.

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Select the correct answer. which tool is used to measure an object’s mass? a. graduated cylinder b. meter stick c. digital therm
zavuch27 [327]

The tool or instrument which is used to measure an object’s mass is electronic balance

Mass is a fundamental quantity

<h3>What is fundamental quantities?</h3>

Fundamental quantities can be defined as those physical quantities which forms the basic unit of measurement. They are the quantities upon which other quantities and units are derived from.

Mass is measured in kilograms (kg)

Other examples of fundamental quantities apart from mass are as follows:

  • Length
  • Time
  • Amount of substances
  • Luminous intensity
  • Temperature
  • Magnetic flux

So therefore, the tool or instrument which is used to measure an object’s mass is electronic balance

Learn more about fundamental/physical quantities:

brainly.com/question/23036403

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6 0
1 year ago
Four alleles determine if a rabbit is white, brown, or gray. This is an example of *
NemiM [27]
The answer is C multiple alleles
6 0
3 years ago
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What is the mass prevent of manganese (mn) in potassium permanganate (KMnO4)​
oksian1 [2.3K]

Answer:

               Mass percent of Mn is 34.76 %

Explanation:

                    <em>Mass percent</em> of an element is the mass of that element divided by the total mass of the elements forming that compound (or molecular mass.

So,

Mass percent of Mn will be given as,

          %Mn  =  Atomic Mass of Mn / Molecular Mass of KMnO₄ × 100

So,

Atomic Mass of Mn  =  54.94 g/mol

Molecular Mass of KMnO4  =  158.034 g/mol

Putting values in above formula,

          %Mn  =  54.94 g/mol ÷ 158.034 g/mol × 100

          %Mn  = 34.76 %

4 0
3 years ago
What can be said of a closed system when an exothermic reaction proceeds in an aqueous solution?
lyudmila [28]
An exothermic reaction is a type of reaction that dissipates heat as the reaction proceeds. This would mean that in a closed system, when a reaction proceeds and is endothermic, the temperature of the solution  or the system would increase so as to maintain the equilibrium with the whole system.
8 0
2 years ago
PLSS HELP! The gas carbon dioxide is a pure substance. Which of the following is true about carbon dioxide? (4 points)
Nadusha1986 [10]

Answer:

The answer is option A..

5 0
2 years ago
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