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Vanyuwa [196]
3 years ago
15

What’s some facts about atoms and elements

Chemistry
2 answers:
Ilya [14]3 years ago
6 0

Answer:

There are alot of facts but here are a few

Explanation:

Atoms:

There are 3 parts to an atom

Protons have a positive electrical charge

Atoms are the smallest particles to make an element

Elements:

Hydrogen is the most common element in the world

An element is a substance that is made entirely from one type of atom.

An element is a substance that cannot be broken down into any other substance.

Contact [7]3 years ago
3 0

Answer:

Dmitri Mendeleyev is the inventor of the modern periodic table.

The majority of the elements are metals.

Atoms are made of tiny particles called protons, neutrons and electrons. Protons and neutrons clump together to form a central nucleus. The electrons move in a cloud-like region around the nucleus.

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Write the balanced chemical equation for the reaction shown here. answer chemistry
Aliun [14]
I found the attached image with the same statement of your question and think it may be very useful for you that I use it to show how to answer this question (furthermore I think it may be the same reaction that you forgot to include).

As you can see, there are one image on the left side and other image on hte right side of the figure.

Those images contains drawings that represent molecules and a legend that permit you to distinguish the kind of atoms in each molecule.

Using that, you can indicate the chemical reaction as the transformation of the molecules on the left side onto the molecules on the right side:

Left side:

3 molecules of CH4 and 3 molecules of N2Cl4

Right side:

3 molecules of CCl4, 3 molecules of N2 and 6 molecules of H2

That is represented as:

3CH4 + 3 N2Cl4 -----> 3 CCl4 + 3N2 + 6H2

And that is the balanced chemical equation for the reaction shown in the figured attached.

I hope this is useful for you..






7 0
4 years ago
What would the product look like if ROOR weren't used?
S_A_V [24]

Answer:

The least substituted product (anti-Markovnikov)

Explanation:

The ROOR is used in the addition reaction of HBr to an organic substance (an alkene for example).

In normal conditions (with no ROOR) the adition of the halogen will be performed in the most substituted C (following the rule of Markovnikov that says that the stability increases with the more substituted is the C).

But in presence of ROOR, the reaction takes other mechanism (free radicals), and the product in this case is the one with the Br added in the least substituted C.

4 0
3 years ago
Complete the chemical change. Na → Na+ <br><br> a.)2e-<br> b.)proton<br> c.)1e-
statuscvo [17]
C) 1e- is the answer because you need that in order to balance the charges
5 0
3 years ago
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Cholesterol has a formula of C27H46O. What is the mass in grams of one molecule of cholesterol?
ryzh [129]

The molar mass of cholesterol = 386.654 g/mol = 387 g/mole

3.2 mg cholesterol x 1 g/1000 mg x 1 mole/387 g x 6.02x1023 molecules/mole = 5.0x1018  molecules.

4 0
3 years ago
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The Law of Reflection says that the angle of ________ and the angle of reflection must be equal.
erik [133]
I believe it is: The Law of Reflection says that the angle of incidence and the angle of reflection must be equal.
I hope this is helpful!
4 0
3 years ago
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