Why aren't the atomic masses of most elements whole numbers

Answers

Answer 1

Answer: Isotopes and most average aren't whole numbers

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Part C
Why are dichotomous keys useful in classifying a new species?

Answers

Answer:

By comparing the traits of other species to that of an undefined species. Even if it is a new species, it can be classified under a specific species type through dichotomous keys.

Someone answer I will mark you as brainliest if correct

Answers

I think the answer could be B.

It's been a while since I've learned anything about this but here's what I know, hopefully it will help you:
Waves are created by wind but dragging across the top of the ocean and then a force pulling the water back down. The question is asking how energy transfers through a wave though and that leads me to guess that the answer is D. Water particles are set in a circular motion. Water moves in a circular motion to the best of my knowledge.

Hope this helps! (:

Where do clouds form

Answers

Answer:

Clouds generally form within the troposphere.

Explanation:

A cloud is a mass of water droplets, ice crystals or both at the same time, which remains in suspension in the atmosphere, and whose formation is due to the condensation of water vapor in the sky.

Clouds form when the air is saturated and can no longer contain water vapor, this can happen in two ways:

1. The amount of water in the air has increased.

2. The air cools to its dew point.

Clouds generally form within the troposphere.

Weather occurs in the Earths troposphere. So in fact, most clouds are formed there.

If I'm doing a project for school about a simple machines and I got a wheel and axle, how does the thing work ?!?!?

Answers

The wheel and axle is a simple machine consisting of a circular object called a wheel and a shaft known as an axle, which is attached to the wheel. All simple machines change the amount of effort needed to work and are the basis for all other machines, according to Mediahex. Two examples of a wheel and axle are a doorknob and a round water facet. In a doorknob, a larger handle turns a much smaller axle to move the door latch. In addition, a faucet has a larger handle that turns a much smaller axle to open a water valve. Another example of a wheel and axle is a car steering wheel, where the driver exerts a force on the outer edge of the wheel to cause the front wheels to turn..

A certain unknown compound burns with a violet flame. What metal is present in the unknown compound? What is the evidence?

Answers

Answer:

Potassium Compounds.

Explanation:

Potassium compounds give a violet flame when heated in a flame; this can be viewed through a blue cobalt glass.

If you are not sure, try a known compound to see what the flame color looks like.

Be sure the wire is clean and fairly free from color before testing your unknown.

A scientist formed a theory based on an experiment he conducted. Many years later, researchers studied his experiment to see if there were any possible sources of error. Should the researchers do this?

Answers

The researches could review his experiments and all of his theories to detect any possible flaws.

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