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natka813 [3]
3 years ago
6

Calculate the volume that 140 g of H2 gas will occupy at 305 K and 8.2 atm.

Chemistry
1 answer:
Alona [7]3 years ago
6 0

Answejust put my mum said i didnt have to do this question

Explanation:

becuase im cool like that

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How do you find the volume of a 2D shape rectangle​
Mars2501 [29]

Answer:

using the formula:-

length *  breadth * height

Explanation:

8 0
4 years ago
The energy of colored light increases in the order red, yellow, green, blue, violet.List the metallic elements used in the flame
Vinil7 [7]

Answer:

Explanation:

Flame test:

The metals ions can be detected through the flame test. Different ions gives different colors when heated on flame. Tom perform the flame test following steps should follow:

1. Dip a wire loop in the solution of compound which is going to be tested.

2. After dipping put the loop of wire on bunsen burner flame.

3. Observe the color of flame.

4. Record the flame color produce by compound

Color produce by metals:

Red = Lithium, zirconium, strontium, mercury, Rubidium (red violet)

Orange-red = calcium

Yellow = sodium, iron (brownish yellow)

Green = green

Blue = cesium. arsenic, copper, tantalum, indium, lead

Violet = potassium (lilac)

3 0
4 years ago
Fossil fuels are an important natural resource used by society. which of the following best describes fossil fuels? a. they are
ZanzabumX [31]

Fossil fuels are an important natural resource used by society and they are organic fuels derived from ancient plants and animals.

<h3>What are fossil fuels?</h3>

Fossil fuels are the natural resources means they are derived from the ancient resdue of plants and animale due to theor decomposition under high temperature and pressure.

  • Fossil fuel may be present in solid, liquid as well as in gaseous form so the given option (a) is incorrect.
  • This is the wrong assumption that in the fossil fuel we get the fossils of dinosaur, so option (c) is incorrect.
  • They are not inorganic fuels infact they are organic fuels.

So, fossil fuels are organic fuels derived from ancient plants and animals.

3 0
2 years ago
Read 2 more answers
The number 0.0020 expressed in scientific notation is?
Feliz [49]

Answer: Here's your answer: Therefore, the decimal number 0.0020 written in scientific notation is 2 × 10-3 and it has 2 significant figures. Here are some more examples of decimal to scientific notation 0.00200 in scientific notation

Explanation: Pls mark me brainiest pls

8 0
2 years ago
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AgC2H3O2 + K2CrO4 = Ag2CrO4 + KC2H3O2 How many moles of silver chromate, Ag2CrO4 are produced in this reaction
Tom [10]

Taking into account the reaction stoichiometry, 1 mole of silver chromate Ag₂CrO₄ are produced in this reaction.

<h3>Reaction stoichiometry</h3>

In first place, the balanced reaction is:

2 AgC₂H₃O₂ + K₂CrO₄  → Ag₂CrO₄ + 2 KC₂H₃O₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

  • AgC₂H₃O₂: 2 moles
  • K₂CrO₄: 1 mole
  • Ag₂CrO₄: 1 mole
  • KC₂H₃O₂: 2 moles

<h3>Moles of Ag₂CrO₄ formed</h3>

By reaction stoichiometry 2 moles of AgC₂H₃O₂ form 1 mole of Ag₂CrO₄.

In other words, according to this balanced chemical equation, 1 mole of silver chromate Ag₂CrO₄ are produced in this reaction.

Learn more about the reaction stoichiometry:

<u>brainly.com/question/24741074</u>

<u>brainly.com/question/24653699</u>

4 0
3 years ago
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