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3 years ago

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

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Which of the following represents an element? со H2CO3 02 ОН-

LenKa [72]

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.

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4 years ago

Which substance is an electrolyte? 1. O2 2. Xe 3. C3H8 4. KNO3

Troyanec [42]

KNO3 is an electrolyte

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3 years ago

What chemical reaction is SiCl2>Si+Cl2

dlinn [17]

The chemical reaction of SiCl2→ Si +Cl2 is

A decomposition reaction

Explanation

A decomposition reaction is type of chemical reaction which involve breaking down a compound into smaller compounds or individual elements.
SiCl2→ Si +Cl2 is a decomposition reaction because SICl2 is broken down into Si and Cl2
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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:

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

The above equation is an example of a double replacement reaction. A double replacement (or double displacement) reaction is a reaction in which the positive and negative ions of two ionic compounds exchange.

Note: The oxidation number of:

K = +1

I = -1

Ba = +2

S = -2

So, the complete chemical equation including phases of the given reaction is:

$2KI_{(aq)}+BaS_{(aq)}\rightarrow BaI_{2(aq)}+K_2S_{(s)}$

Part B:

Given equation:

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

Also, the equation is an example of a double replacement reaction.

Note: The oxidation number of:

K = +1

Cl = -1

Ca = +2

S = -2

The complete chemical equation including phases of the given reaction is:

$2KCl_{(aq)}+CaS_{(aq)}\rightarrow K_2S_{(s)}+CaCl_{2(aq)}$

5 0

2 years ago

An element is:

SIZIF [17.4K]

C. A pure chemical substance consisting of one type of atom

3 0

3 years ago

What is law of conservation​

What is law of conservation