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Paha777 [63]
3 years ago
7

If an atom has no electric charge what can be said about the number or protons and electrons it contains

Chemistry
1 answer:
valina [46]3 years ago
8 0
An atom has a net zero electric charge if the number of protons and electrons it contains are the same.
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If the length of a string increases 2 times but the mass of the string remains constant, the new density of the string will equa
Genrish500 [490]

If the length of a string increases 2 times but the mass of the string remains constant, the original density  will be multiplied by a factor  mathematically given as

v=1.414 times

<h3>Will the new density of the string equal the original density multiplied by what factor?</h3>

Generally, the equation for the  volume is mathematically given as

v = sqt(TL/m)

Where

density = mass/length

Therefore

v2/v1 = \sqrt{L2/L1}

v2/v1 = \sqrt{2}

In conclusion,v ratio will give us

v=1.414 times

Read more about volume

brainly.com/question/1578538

8 0
2 years ago
Which method of heat transfer takes place when particular of matter vibrate and collide with each other in direct contact?
Luden [163]
Conduction - by touch
Convection - hot air rises, cold air sinks
Insulation - to insulate or capture heat
Radiation - by waves
Direct contact means touch, therefore the answer would be conduction.
5 0
3 years ago
Read 2 more answers
Which of the following metric prefixes are not one multiple of ten when moving forward or backward between prefixes?
velikii [3]

The metric prefixes which is not one multiple of ten when moving forward or backward between prefixes is: none of the above

Option c is the correct answer

<h3>What is metric prefix?</h3>

A metric prefix simply refers to a unit prefix that precedes a basic unit of measure to indicate a multiple or sub-multiple of the unit.

So therefore, the metric prefixes which is not one multiple of ten when moving forward or backward between prefixes is: none of the above

Complete question:

Which of the following metric prefixes are not one multiple of ten when moving forward or backward between prefixes?

a. micro

b.nano

c. none of the above

Learn more about metric prefix:

brainly.com/question/2050691

#SPJ1

8 0
1 year ago
Why is there Roman numerals (II) in copper(II) chloride, but no (III) in Aluminum chloride?
Neporo4naja [7]

This is because copper is a transition metals.

Transition metals don't have a definite charge, you can see this on the periodic table. However, Alkali Earth, Alkali, Metalloids, Non-metals, Halogens, Noble Gases, etc, all have a specified charge.

Although, there are exceptions: Zinc, Gold, and Cadmium.

Aluminum is a poor metal, but it has it's own charge (3+).

Therefore, Copper has roman numerals due to the fact that it's a transition metal and Aluminum is a poor metal.

Hope this helps!

6 0
3 years ago
Read 2 more answers
Acid is added to a beaker containing crushed marble. What effect does stirring this mixture have on the system?
Lostsunrise [7]

Answer: the surface area of the particles increases the number of the particle collisions

Explanation:

5 0
3 years ago
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