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ziro4ka [17]
3 years ago
11

Concentrations expressed as a percent by mass are useful when the solute is a _____.

Chemistry
2 answers:
elixir [45]3 years ago
4 0

Answer:

Solid

Explanation:

A solid such as sugar can be measured and added to a solute to form a solution. The amount of solute present can be expressed as a percentage.

Westkost [7]3 years ago
3 0

C. Solid

Although molarity is commonly used to express concentrations for reactions in solution or for titrations, it does have one drawback—molarity is the number of moles of solute divided by the volume of the solution, and the volume of a solution depends on its density, which is a function of temperature.

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F a cold object is placed in a warm room, heat will move from the object into the room cold will move from the object into the r
Masja [62]
Cold is the absence of heat! so heat moves into the object from the environment (room) rapidly~ and it slows down by time and water is formed on the surface of the object because of cold and hot air.
I hope this helps cx
5 0
3 years ago
A 2,31M solution of trans-4-methyl-2-pentene (C6H12, 85mL) is combined with 7,5mL of 3,55M elemental bromine to form an addition
kvasek [131]

Answer:

The statement is false

Explanation:

Number of moles of alkene = 2.31 × 85/1000 = 0.196 moles

Number of moles of Br2 = 3.55 × 7.5/1000 = 0.0266 moles

Given that the reaction is 1:1

1 mole of alkene reacts with 1 mole of bromine

0.196 moles of alkene should react with 0.196 moles of bromine

Hence, to achieve 100%yield, 0.196 moles of bromine and not 25mmols of elemental bromine

6 0
3 years ago
How can environmental pollution occur when using cosmetics that contain environmental pollution?
Eduardwww [97]

Answer:

When cosmetics companies use chemicals to make their products, they could dump their waste into rivers and oceans, causing water pollution to occur. The wildlife that lives in these habitats will probably die from them, causing some species to die out and become extinct.

Explanation:

Also, greenhouse gases could be released into the atmosphere, which would cause global warming.

6 0
4 years ago
State the differences between Transition metals and S-blocks metals<br>​
Talja [164]

Answer:

There both different

Explanation:

There just different

8 0
3 years ago
What other objects are often arranged by there properties
Trava [24]

Answer:

other than the periodic table, are often arranged by their properties

Explanation:

Money, they are arranged by how big or small they are, like coins, with pennies, dimes, and quarters.

4 0
3 years ago
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