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bagirrra123 [75]

3 years ago

13

H2O consists of polar molecules. CO2 consists of nonpolar molecules. How do chemists explain this difference?

2 answers:

Vadim26 [7]3 years ago

8 0

C. Oxygen has a different attraction for electrons in H2O than in CO2

the covalent bond between Hydrogen-Oxygen and Carbon-Oxygen is different because the difference of electronegativity (the tendency of an atom to attract a shared pair of electrons towards itself) between Hydrogen and Oxygen is a lot higher than the difference of electronegativity between Carbon and Oxygen. This difference in electronegativity results in separation of partial electric charge creating polar bonds and giving the molecule a polarity.

lesantik [10]3 years ago

8 0

Answer:

These compounds have different shapes.

Explanation:

Two things determine whether a molecule is polar or no polar. The size and shape of the molecule.

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Select the correct answer.

Effectus [21]

A. logic, would be your answer i believe!

4 0

2 years ago

Identify the relationship between the two quantities in the given question as causation or

Mumz [18]

Answer:2. The number of miles driven and the amount of gas used.

Explanation:

4 0

3 years ago

Tammy leaves the office, drives 34 km due north, then turns onto a second highway and continues in a direction of 35◦ north of e

Natasha2012 [34]

Answer:

The total displacement is 102 km $51^o$ north of east.

Explanation:

We can treat this problem as a trigonometric one, so we need to calculate the total displacement on the north and east.

$d_n=34km+79km*sin(35^o)=79km$

and

$d_e=79*cos(35^o)=65km$

The total displacement is given by:

$D=\sqrt{(79km)^2+(65km)^2}=102km$

with an agle of:

$\alpha =arctg(\frac{79km}{65km})=51^o$

4 0

3 years ago

What is the gravitational potential energy of a tiger that weighs 200 N standing on a rock that is 2 m above the ground?

Nikitich [7]

G.P.E = mgh
Weight = mg = 200N

So G.P.E = 200 * 2 = 400 Joules

5 0

3 years ago

A 0.290 kg block on a vertical spring with a spring constant of 5.00 ✕ 103 N/m is pushed downward, compressing the spring 0.110

True [87]

Answer:

The height at point of release is 10.20 m

Explanation:

Given:

Spring constant : K= 5 x 10 to the 3rd power n/m

compression x = 0.10 m

Mass of block m= 0.250 kg

Here spring potential energy converted into potential energy,

mgh = 1/2 kx to the 2 power

For finding at what height it rise,

0.250 x 9.8 x h = 1/2 x 5 x 10 to the 3 power x (0.10)to the 2 power) - ( g= 9.8 m/8 to the 2 power

h= 10.20

Therefore, the height at point of release is 10.20 m

4 0

3 years ago