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Paladinen [302]
3 years ago
6

Why is water considered a polar molecule?

Chemistry
1 answer:
Lady bird [3.3K]3 years ago
5 0
It is because water is a liquid form.
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Draw 2,3-dichloro octane
Deffense [45]

Answer:

Hi friend

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6 0
2 years ago
6th grade help me plzzzz
tiny-mole [99]

Answer:

positive

Explanation:

8 0
3 years ago
Calculate the enthalpy for the following reaction. During the reaction, the temperature changes from 42.5 C to 37 C. The specifi
Dahasolnce [82]

Answer:

q = 0.810 Kj/mol

Its an endothermic reaction

Explanation:

Enthalpy can be evaluated by using following formula -

q = m * c* \delta T

where

q is the enthalpy or change in internal energy

m is the mass in kg

c is the specific heat

and \delta T is the change in temperature

Mass of HCl is equal to 36.46 g/mol

or

Mass of HCl is equal to 0.03646  Kg/mol

Substituting the given values in above equation, we get-

q = 0.03646 * 4.04 * (42.5 - 37)\\q = 0.03646 * 4.04 * 5.5 \\

q = 0.810 Kj/mol

Enthalpy is positive thus it is an endothermic reaction

4 0
3 years ago
Calculate the mass of 4.55x1024 molecules of sucrose
maxonik [38]

Answer:

2584 g

Explanation:

The molecular formula for sucrose is C₁₂H₂₂O₁₁, which means its molar mass is 342.3 g/mol.

First we<u> convert molecules into moles</u> by using <em>Avogadro's number</em>:

  • 4.55x10²⁴ molecules ÷ 6.023x10²³ mol/molecules = 7.55 mol

Now we <u>convert moles of sucrose into grams</u>, using its<em> molar mass</em>:

  • 7.55 mol * 342.3 g/mol = 2584 g
7 0
3 years ago
If told to determine whether or an unknown substance is either salt or sugar what do you do to determine which it is explain?
Aleonysh [2.5K]
If you were allowed to taste it sugar will be more sweeter whereas salt wouldnt. But if you were to touch it then sugar is more tinnier than salt.
3 0
3 years ago
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