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UkoKoshka [18]
3 years ago
6

Which of the following IS NOT an ionic compound? A) C2H5OH B) KCI C) Mg3N2 D) MnO2

Chemistry
1 answer:
11111nata11111 [884]3 years ago
7 0
A,

ionic compounds are with a metal and a non metal. A is a hydrocarbon which uses covalent bonds as all the elements involved are non-metals
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Which of the following are true of phases?Check all that apply.A.The particles in a liquid are in a fixed location.B.Gases have
saw5 [17]

Answer:

The answers are options b , c and d.

Hope this helps.

7 0
3 years ago
Which class of biological molecule is made up of long hydrocarbon chains
inna [77]

Lipids are made up of long hydrocarbon chains and is not soluble in water.

Hence, Option C is correct answer.

<h3>What is Carbohydrates ? </h3>

Carbohydrate is water soluble macromolecule because they are small polar molecules contains many -OH functional groups that makes it hydrophilic.  

<h3>What is Nucleic acid ?</h3>

Nucleic acids are long polymeric chain. They are hydrophilic in nature. Nucleic acid are soluble in water because of their polar nature.

<h3>What is Lipids ? </h3>

Lipids are hydrophobic and they are generally water insoluble because lipids are non polar molecules. Lipids are oily or greasy molecules. Lipids are made up of glycerol molecule. It includes fatty acids.

Thus from the above conclusion we can say that Lipids are made up of long hydrocarbon chains and is not soluble in water.

Hence, Option C is correct answer.

Learn more about the Lipids here: brainly.com/question/17352723
#SPJ1

8 0
2 years ago
Explain why floods, hurricanes, and tornadoes are aspects of weather, not climate.
kolezko [41]

Answer:

Floods, hurricanes, and tornadoes are all aspects of weather and not climate because climate is more related to temperature. The definition of climate is "the weather conditions prevailing in an area in general or over a long period." Floods, hurricanes, and tornadoes are not aspects of climate, they are aspects of weather.

Explanation:

4 0
3 years ago
What volume did a helium-filled balloon have at 22.5 c and 1.95 atm if it’s new volume was 56.4 mL at 3.69 atm and 11.9c
Veseljchak [2.6K]

This is an exercise in the general or combined gas law.

To start solving this exercise, we obtain the following data:

<h3>Data:</h3>
  • T₁ = 22.5 °C + 273 = 295.5 K
  • P₁ = 1.95 atm
  • V₁ = ¿?
  • P₂ = 3.69 atm
  • T₂ = 11.9 °C + 273 =  284.9 k
  • V₂= 56.4 ml

We use the following formula:

P₁V₁T₂ = P₂V₂T₁ ⇒ General formula

Where

  • P₁ = Initial pressure
  • V₁ = Initial volume
  • T₂ = Initial temperature
  • P₂ = Final pressure
  • V₂ = final volume
  • T₁ = Initial temperature

We clear the formula for the initial volume:

\boldsymbol{\sf{V_{1}=\dfrac{P_{2}V_{2}T_{1}}{P_{1}T_{2}}  } }

We substitute our data into the formula to solve:

\boldsymbol{\sf{V_{1}=\dfrac{(3.69 \not{atm})(56.4 \ ml)(295.5 \not{k})}{(1.95 \not{atm})(284.9\not{k})}  }}

\boldsymbol{\sf{V_{1}=\dfrac{61498.278}{555.555} \ lm }}

\boxed{\boldsymbol{\sf{V_{1}=110.697 \ lm }}}

The helium-filled balloon has a volume of <u>110.697 ml.</u>

6 0
1 year ago
Read 2 more answers
A general term for an tractive force that holds two atoms together is known as what
denpristay [2]

I believe the answer is a covalent bond. :)

8 0
3 years ago
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