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2 years ago

The attraction between water molecules and a na+ ion or a cl- ion occurs because water molecules are —

1 answer:

7 0

Water molecules are polar (positive charge zones and negative charge zones) this makes the attraction of a na+ ion or a cl- ion to occur.

<h3>How are the water molecules composed?</h3>

This class of molecules that have a distribution of charges are called polar and, consequently, form bonds called hydrogen bonds with other molecules.

These molecules have a permanent dipole moment, that is, they have a structure called dipolar (two poles), this arrangement gives water great power to dissolve substances within it.

Therefore, we can conclude that water molecules are polar (positive charge zones and negative charge zones) this makes the attraction of a na+ ion or a cl- ion to occur.

Learn more about water molecules here: brainly.com/question/12730171

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Anthony returns home from work. When he opens the front door of his house, he detects a strong smell of gas. He suspects that hi

emmainna [20.7K]

The ability of Anthony to be able to smell the gas in his house because of the activation of his olfactory receptors through the process of sensation.

<h3>What is olfactory system?</h3>

The olfactory system refers to the sense of smell. Human being feel the sensation of smell through the nose. The nose is the organ of the body responsible for perceiving both good and bad odor.

There are five major sense organs in the body:

Eyes - Sight
Nose - Smell
Tongue - Taste
Skin - Touch
Ears - Hearing

Learn more about olfactory system:

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2 years ago

The buried verb phrase conduct research on can be revised to . Overuse of intensifiers sounds unprofessional. Which one of the f

Effectus [21]

The buried verb phrase conduct research on can be revised to:

Evaluate

The sentence that best controls exuberance is:

I am certain he will like the gift

<h3>What is a Verb Phrase?</h3>

A verb phrase occurs when a verb is hidden within a noun phrase. In the noun phrase; "conduct research on," the hidden verb is "evaluate." Now, the phrase appears as a noun but actuality contains a verb.

The use of the phrase; "definitely certain" is an overuse of words. "Certain" is moderate and better.

Learn more about buried verb phrases here:

brainly.com/question/15174328

#SPJ1

5 0

2 years ago

Jordan wants to play a basketball game at a carnival. The game costs the player \$5$5dollar sign, 5 to play, and the player gets

Irina-Kira [14]

Based on the payoffs and the probabilities given, we can calculate the mean to be <u>0.8 shots made. </u>

The mean in this scenario will be a weighted average of the probabilities that a number of shots will be made.

The mean will be:

<em>= ∑ (Number of shots x Probability of number of shots)</em>

= (0 x 0.36) + (1 x 0.48) + (2 x 0.16)

= 0.8 shots

In conclusion, the mean is 0.8 shots.

Find out more about weighted average at brainly.com/question/18554478.

5 0

2 years ago

A 0. 75-kg ball is attached to a 1. 0-m rope and whirled in a vertical circle. The rope will break when the tension exceeds 450

8090 [49]

At the bottom of the circle, the ball is being pulled upward by tension in the rope and downward by its own weight, so that the net force on it is

∑ F = 450 N - (0.75 kg) g = (0.75 kg) a

where a is centripetal acceleration. At this maximum tension, the ball has a maximum centripetal acceleration of

a = (450 N - (0.75 kg) g) / (0.75 kg) = 590.2 m/s²

Then its maximum tangential speed v is such that

a = v² / (1.0 m)

⇒ v = √((1.0 m) a) ≈ 25 m/s

7 0

2 years ago

Carla fell when she skated too fast around the sharp curve.

Eddi Din [679]

Answer:

adjective: sharp; adverb: fast

Explanation:

"sharp" describes "curve", which is a noun, and therefore, this is an adjective.

"fast" describes "skated" (I think), which is a verb, and therefore, this is an adverb.

Hope this helps!

8 0

2 years ago