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den301095 [7]
3 years ago
13

Please help explain and don't answer if you don't know. thank you

Chemistry
1 answer:
ipn [44]3 years ago
5 0

Answer:

The group 18 elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). These elements are non-reactive and are called noble gases as they have their outermost orbit complete. Due to stable electronic configuration they hardly react with other elements.The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.The group 18 elements are called noble or inert gases. As the name suggests these are inert because chemically they are very less reactive or not at all reactive.The full valence electron shells of these atoms make the noble gases extremely stable.

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Potassium hydroxide, also known as lye, dissociates into metal and hydroxide ions in water.
lesya692 [45]

Answer:

strong acid and weak base

Explanation:

#carryonlearning

5 0
3 years ago
How does mechanical advantage help in doing work?
Lostsunrise [7]

Answer:

  • Mechanical advantages allows humans to perform tasks much easier in terms of the force they need to apply, but must always obey the conservation of energy.

  • Mechanical advantage is a measure of the ratio of output force to input force in a system, used to analyze the forces in simple machines like levers and pulleys.

  • A good example is pushing a heavy object up a ramp. It may be easier to push the object up a ramp instead of just lifting it up to the right height, but it takes a longer distance.

Explanation:

<h3>Hope it helps you!! </h3>
3 0
2 years ago
The combustion of carbohydrates and the combustion of fats are both exothermic processes, yet the combustion of carbohydrates is
saveliy_v [14]

Explanation:

Combustion of a compound is the reaction with oxygen , hence , the process of combustion is an oxidation reaction.

The carbohydrates contain more amount of oxygen as compared to the fats ,

Hence ,

carbohydrates , have a lot of oxygen contents , are are already partially oxidized , but fats have lower oxygen content .

Therefore ,

The partially oxidized carbohydrates are very difficult to oxidized in comparison to fats .

4 0
4 years ago
The molar mass of naoh is 40.00 G/mol. If 5.20 g naoh are dissolved in 0.500 l of solution what is the molarity of the solution
valkas [14]
                         moles NaOH = 5.20 g * 1 mol / 40.00 g = 0.13 mol
                         [NaOH] = n/V = 0.13 mol / 0.500L
                                       = 0.26 M
The answer to this question is 0.26 M

7 0
3 years ago
Read 2 more answers
Use Newton’s first law of motion to explain why the coin falls into the cup if you remove the card quickly.
g100num [7]
Gravity pulls it down into the cup
6 0
3 years ago
Read 2 more answers
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