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Anika [276]
3 years ago
10

Which substance is an example of an element?

Chemistry
2 answers:
kaheart [24]3 years ago
6 0

It is B. I took the test!!

Gnoma [55]3 years ago
4 0
Copper is an element. An element is a substance that is entirely made from one type of atom.
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The figure shows a nutrition label. How much energy does this food contain?
RoseWind [281]

Answer:

i need help with that too.

Explanation:

3 0
3 years ago
Which of the following sets of elements could replace the generic "X" symbol with their own to produce a valid dot notation for
inessss [21]

Symbol  "X" represents Nitrogen, phosphorus, and arsenic.as they have five valence electrons in their valance shell.

<h3>What is a Lewis notation?</h3>

A Lewis form is a completely simplified illustration of the valence shell electrons in a molecule. it's miles used to expose how the electrons are organized round man or woman atoms in a molecule. Electrons are proven as dots or for bonding electrons as a line between the 2 atoms.

Lewis systems, also known as electron-dot structures or electron-dot diagrams, are diagrams that show the bonding between atoms of a molecule, and the lone pairs of electrons that can exist within the molecule.A Lewis form is based totally at the idea of the octet rule, wherein atoms percentage electrons in order that every atom has 8 electrons in its outer shell. for example, an oxygen atom has six electrons in its outer shell.

Learn more about valence electrons :-brainly.com/question/371590

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6 0
2 years ago
What is carbon? What does it do?
Archy [21]

Answer:

Carbon is in carbon dioxide, which is a greenhouse gas that works to trap heat close to Earth. Carbon is the chemical backbone of life on Earth. Carbon compounds regulate the Earth's temperature, make up the food that sustains us, and provide energy that fuels our global economy. Most of Earth's carbon is stored in rocks and sediments. The rest is located in the ocean, atmosphere, and in living organisms

Explanation:

Hope it helps. Can you give me BRAINLIEST ANSWER. Thank you

7 0
2 years ago
Which indicator has to be used in order to get an emerald green color at a pH of 9?
Sphinxa [80]
I think it would be B maybe
8 0
3 years ago
Like several other bonds, carbon-oxygen bonds have lengths and strengths that depend on the bond order. Draw Lewis structures fo
aniked [119]

The order of increasing C-OC−O bond length is:

                 a < c < b < e < d

                  a < c < b < e < d

Therefore, the order of increasing bond strength is:

       d < e < b < c < a

        d<  e < b < c  < a

<h3>What is bond length?</h3>

The distance between the centers of two atoms that are covalently connected is known as the bond length. The number of bound electrons determines the bond's length (the bond order). The greater the attraction between the two atoms and the shorter the bond length are, the higher the bond order.

The average distance between the nuclei of two bound atoms in a molecule is referred to as bond length or bond distance in molecular geometry. It is a transferrable characteristic of a bond between atoms of fixed kinds that is comparatively independent from the other components of the molecule.

Bond length and bond order are related; the shorter the bond is when more electrons are involved in its production.

To learn more about bond length from the given link:

brainly.com/question/28225709

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5 0
2 years ago
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