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prisoha [69]
3 years ago
5

Check all that apply. view available hint(s) water is known as a polar molecule because check all that apply. the hydrogen atom

attracts electrons much more strongly than the oxygen atom. the electrons of the covalent bond are not shared equally between the hydrogen and oxygen atoms. the oxygen and hydrogen atoms have the same electronegativity. the oxygen atom has a greater attraction for electrons than the hydrogen atom does. water dipole moment is equal to zero.
Chemistry
1 answer:
elixir [45]3 years ago
3 0
The first answer is the electrons of the covalent bond are not shared equally between the hydrogen and oxygen atoms because the hydrogen atoms attract the electrons less strongly. The second answer is the oxygen atom has a greater attraction for electrons than the hydrogen atom does because the nucleus of the oxygen atom has more positively charged protons.
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Suppose two scientists perform the same experiment separately, but their results are very different. What could they do to find
Lynna [10]
They should identify the confounding variable.

Some condition that is not examined by the scientist might alter the experiment result. That condition is called confounding variable. If the method of the experiment same but result is very different, there should be unidentified confounding variable. It could be air humidity, temperature, ventilation, light, time of the year or anything that might not be seen by naked eye.
Try to redo the experiment with controlling variable as much as possible.
5 0
3 years ago
a scuba diver's tank contains 0.29g of oxygen compressed into volume of 2.3L. What is the pressure in the tank at 9C?
viva [34]

Answer:

The answer to your question is P = 0.18 atm

Explanation:

Data

mass of O₂ = 0.29 g

Volume = 2.3 l

Pressure = ?

Temperature = 9°C

constant of ideal gases = 0.082 atm l/mol°K

Process

1.- Convert the mass of O₂ to moles

                16 g of O₂ -------------------- 1 mol

                0.29 g of O₂ ----------------   x

                    x = (0.29 x 1)/16

                    x = 0.29/16

                    x = 0.018 moles

2.- Convert the temperature to °K

Temperature = 9 + 273 = 282°K

3.- Use the ideal gas law ro find the answer

              PV = nRT

-Solve for P

              P = nRT/V

-Substitution

              P = (0.018 x 0.082 x 282) / 2.3

-Simplification

              P = 0.416/2.3

-Result

               P = 0.18 atm

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3 years ago
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Please help me thank you so much <3
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Answer:

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