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timofeeve [1]
3 years ago
9

What is law of conservation​

Chemistry
2 answers:
kolezko [41]3 years ago
5 0

Answer:

Law of conservation of mass states that the mass if reactant is equal to masd of product.

Law of conservation of momentum states that the momentum before collosion is equals to momentum after collision.

joja [24]3 years ago
3 0

Explanation:

If a system does not interact with its environment in any way, then certain mechanical properties of the system cannot change. They are sometimes called "constants of the motion". These quantities are said to be "conserved" and the conservation laws which result can be considered to be the most fundamental principles of mechanics. In mechanics, examples of conserved quantities are energy, momentum, and angular momentum. The conservation laws are exact for an isolated system.

Stated here as principles of mechanics, these conservation laws have far-reaching implications as symmetries of nature which we do not see violated. They serve as a strong constraint on any theory in any branch of science. There are other types of conservation laws that govern the behavior of nature in the quantum realm.

Inde

i hope this helps you

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Which of the following represents an element?<br>со<br>H2CO3<br>02<br>ОН-​
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Answer:

Co (assuming there's a typo in not capitalizing the first letter)

Explanation:

The elements are depicted in the periodic table. Those are fundamental atoms that are not bonded to anything else but exist in their natural states without forming a bond with anything. That said, we're interested in a monoatomic species listed (the species which consist from only one single atom).

Out of all the choices, we have Co, cobalt, which is a single atom and can be found as an element with the atomic number 27.

Carbonic acid, H_2CO_3, consists of 3 different elements: hydrogen (atomic number of 1), carbon (atomic number of 6) and oxygen (atomic number of 8). It's a compound rather than an element, as it consists of several atoms bonded together.

Oxygen, O_2, is also a molecule. It consists of more than a single atom, even though the two atoms are identical. We have a compound, oxygen gas, which consists of two same oxygen (O) atoms (or elements).

Hydroxide anion, OH^{-}, also consists of two elements: oxygen and hydrogen. It also contains a charge on it, so rather than being a molecule, this is now an ion. Since it consists of more than a single atom, this is not an element as well.

6 0
4 years ago
Which substance is an electrolyte? 1. O2 2. Xe 3. C3H8 4. KNO3
Troyanec [42]
KNO3 is an electrolyte
3 0
3 years ago
What chemical reaction is SiCl2&gt;Si+Cl2
dlinn [17]

The  chemical  reaction  of  SiCl2→ Si +Cl2  is

A  decomposition reaction


<u><em>Explanation</em></u>

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3 years ago
Complete and balance each of the following equations. If no reaction occurs, enter NOREACTION.
Tatiana [17]

Answer

Part A:

Given equation:

KI_{(aq)}+BaS_{(aq)}\rightarrow

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K = +1

I = -1

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Part B:

Given equation:

KCl_{(aq)}+CaS_{(aq)}\rightarrow

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2 years ago
An element is:
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