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Savatey [412]
2 years ago
11

What can we say about elements?

Physics
2 answers:
Andrew [12]2 years ago
7 0

Answer:

I would say that your best answer would be C.

I'm not too sure about this, but it's the best answer on there

Explanation:

Hope this helps you.

gtnhenbr [62]2 years ago
7 0
<h3>Answer:</h3>

C. They can be bonded together to create different substances.

<h3>Explanation:</h3>

Elements are the simplest substances that can get without losing their properties. They can be found on the periodic table.

To help answer this question we can break down each answer choice.

Choice A

Answer A cannot be correct simply because of the definition of an element. A substance of a pure element cannot be broken down into any simpler substance. The only thing beyond an element is subatomic particles like protons and electrons, which are not considered substances. So elements are the simplest substances that exist.

Choice B

Many elements are found in nature. It would be impossible to live if elements were not naturally occurring. For example, oxygen is an element. Oxygen is found naturally in the atmosphere and is replenished by photosynthesis and the carbon cycle. Additionally, all life is carbon-based, so of course, carbon is also naturally occurring.

Choice C

Chemical compounds and substances surround us every day. Just as we need oxygen to breathe, carbon dioxide is also an important part of life. Carbon dioxide is a substance created by the bonding of carbon and two oxygen atoms when we breathe out. So, it is true that elements can be boned to create substances.

Choice D

As stated in the explanation for choice B, elements can be found naturally. There are some elements created in a lab like Technetium, but others such as sulfur and oxygen are not created in labs.

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Explanation:

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4 0
3 years ago
Read 2 more answers
Planets orbit the Sun because _____.
amm1812

This is a poorly written question.

<span>Out of the choices listed, the first one is the only one that includes
a true statement ... the greater the mass of two objects, the greater
the gravitational attraction is between them.</span> 

-- Newton's law of universal gravitation doesn't "suggest" that.  It states it ...
boldly and unequivocally.

-- The law doesn't refer to the "greatness" of the mass of the two objects. 
It refers to the product of their masses.

-- It's true that the law of universal gravitation can be massaged and
manipulated to reveal the existence of gravitational planetary orbits.
But there's a lot more to it than simply the masses.

For example ... the gravitational force between two objects is inversely
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It turns out that IF that exponent were not precisely, exactly  2.000000... ,
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8 0
3 years ago
Assume light is traveling through an optical medium of n1 and is incident on a boundary with a different optical medium with n2.
Elza [17]
That n2 = 2*n1.  That is, the index of refraction is twice as big in medium 2 since v=c/n
5 0
3 years ago
Katie, a 40 kg child, climbs a tree to rescue her cat who is afraid to jump 9.4 m to the ground. How much work does Katie do to
Diano4ka-milaya [45]

Answer:

The work done by the child to reach the cat is, W = 3684.8 J        

Explanation:

Given data,

The mass of the child, m = 40 kg

The height of the cat from the ground, h = 9.4 m

The force acting on the child due to gravitational force is,

                                  F = mg

The minimum force required by the child to climb the tree against the gravitational force is,

                                 F = mg

Hence, the work done by the child is,

                                W = F ·  h

                                     = 40 x 9.8 x 9.4

                                     = 3684.8 joules

Hence, the work done by the child to reach the cat is, W = 3684.8 J                      

4 0
3 years ago
Why do atoms have an overall neutral charge?
Y_Kistochka [10]
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6 0
3 years ago
Read 2 more answers
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