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andriy [413]
2 years ago
5

Which of the following molecules contains a polar covalent bond?

Chemistry
1 answer:
jek_recluse [69]2 years ago
5 0

Answer:

ummm well you have to go to school I

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How many molecules of hydrogen gas (Hz) are needed to produce 9.0 x 1023 molecules of H2O?
VashaNatasha [74]

Answer:

Explanation: Ammonia (NH3) is produced by the reaction of nitrogen gas and hydrogen gas. ... How many grams of fluorine gas are needed to produce 100.00g of AlF3? ... How many molecules of CO2 gas can be produced of 156.24g of benzene, ... (a) If 16.74.g of Fe and 9.0 9 of H2O are allowed to react, how many grams of products.

4 0
2 years ago
Select the correct answer.
erastova [34]

Scientific law

Explanation:

A scientific law is a term that refers to a fact that naturally occurs in the universe.

Scientific laws are natural laws and they hold true.

  • Scientific law is a well tested idea that holds through for a range of natural events.
  • Scientific theories are explanations of phenomenons drawn from series of tests.

Learn more:

experiment brainly.com/question/5096428

#learnwithBrainly

3 0
3 years ago
What is the term used to describe a change in motion?
Irina-Kira [14]

Answer:

it should be momentum if im not mistaken

8 0
2 years ago
In the equation below, identify the Brønsted-Lowry acid, the Brønsted-Lowry base, conjugate acid, conjugate base.
AnnyKZ [126]

Answer:

Explanation:

Your B-L Acid is a proton (Hydrogen, H+) donor, and your B-L base is a proton acceptor. This means that the base will take a hydrogen from your acid. NO2- is a B-L base, and you can tell it is a base by the negative charge it possesses. This means that it has a lone pair that wants to grab one of the hydrogens from NH4+, the B-L acid. In scientific words, the NO2- is a nucleophile and NH4+ is an electrophile. The result of NO2- grabbing that hydrogen from NH4+ is that NO2- becomes HNO2 (your conjugate acid) and and NH4+ becomes NH3 (you conjugate base). Basically, any time a B-L acid loses a proton, its equal product will be its conjugate base, and any time a B-L base gains a proton, its equal product will be its conjugate acid.

I hope this helped explain the concept behind Bronsted-Lowry acids and bases! Good luck with your class and please don't forget to give a positive rating! :-)

7 0
3 years ago
A 2.00-L sample of was collected over water at a total pressure of 750. torr and 22 °C. When the was dried (water vapor removed)
9966 [12]

Answer : The vapor pressure of water at 22^oC is 1.01 atm.

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}

or,

P_1V_1=P_2V_2

where,

P_1 = initial pressure = ?

P_2 = final pressure = 750 torr = 0.987 atm    (1 atm = 760 torr)

V_1 = initial volume = 1.95 L

V_2 = final volume =  2.00 L

Now put all the given values in the above equation, we get:

P_1\times 1.95L=0.987atm\times 2.00L

P_1=1.01atm

Therefore, the vapor pressure of water at 22^oC is 1.01 atm.

7 0
2 years ago
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