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4 years ago

The periodic table organize elements based on

Chemistry

1 answer:

e-lub [12.9K]4 years ago

7 0

The elements are arranged by their atomic number but are also grouped by what type of element they are.

For example, metals, non metals, metalloids, and noble gasses will be grouped with elements that match them.

Hope this makes sense!

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Which formula represents an ionic compound?1) NO2) KCl3) HCl4) CO2

MissTica

Answer:

its 3

Explanation:

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3 years ago

what is the specific latent heat of fusion for a substance that takes 550 kj to melt 14 kg at 262 k? brainly answers

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q = mL

L = q/m = 550 kJ/14 kg = 39 kJ/kg

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3 years ago

Fruit sugar is known as _____. fructose sucrose lactose maltose

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The answer to this question is Fructose

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3 years ago

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Choose the correct statement regarding the behavior of water.

AfilCa [17]

Answer:

d. The energy required to evaporate 1 kg of liquid water equals the energy released when 1 kg of water vapor condenses into liquid.

Explanation:

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Since we're considering the same amount of water, the vapor phase has a higher energy content than the liquid phase, thus, for the specified amount of water particles (those contained in the given 1 kg) the energy MUST be same when taking them either to a gaseous phase or to a liquid phase, the only difference is the sign which is negative from gaseous to liquid (heat withdrawal) and positive from liquid to gaseous (heat adding).

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3 years ago

Everyone in Mrs. Blaylock's science class must perform an experiment for the science fair this year. To begin this process, Mrs.

sergey [27]

Answer:

Second choice: How does the position of the Sun, moons, planets and stars affect a person's personality traits and daily behavior patterns?

Explanation:

Science or scientific investigations deal with objective phenomena; this is phenomena which can be described by using objective measurements.

The effect of the position of the Sun, moons, planets and stars on a person's personality and daily behavior patterns is not a scientific question because none scientific field deals with that kind of questions.

Only, a pseudoscience, this is a set of beliefs that have not been scientifically proved, may deal with a question about the effect of the position of some heavenly objects can affect a person's personality traits and daily behavior of patterns.

On the other hand, the aspects deal with in the other questions (the mass of a toy car, the speed down a ramp, the heating from different type of pans, how different type of chemicals remove the cell wall of a plant cell) are measurable and testable (falsifiable), which make them objects of science (like physics, chemistry, and biology)

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3 years ago