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KonstantinChe [14]
3 years ago
10

Is granite rock a compound, element, mixture? Explain

Chemistry
1 answer:
Ghella [55]3 years ago
7 0
It is a <u>mixture</u> of minerals mainly of corps that crystalizes of magma below earths surface.
You might be interested in
Is Newton's statement a law or a theory? It is a theory because it developed and changed over time as new technology provided ne
nika2105 [10]

Answer:

It is a law because it is a statement of fact that does not need any more experimental support.

Explanation:

A hypothesis is an acceptable assumption that is formulated through the collection of information and data and that attempts to explain some phenomenon. In other words, a hypothesis is a conjecture with which one tries to explain an observed fact. The formulation of a hypothesis can be derived in two different ways: by generalization, from a certain number of cases or observed phenomena; and, by analogies observed in the occurrence of different phenomena.

A theory is something that attempts to explain some phenomenon and that is accepted as true by the scientific community. In other words, a theory is a set of rules that describe the behavior of a particular system.

A law is a statement that expresses the constant relationships between phenomena of nature, society or the mind. Scientific law can be defined as an invariable relationship of terms. In other words, a law is what is scientifically proven to be true, it is universally applicable.

So scientific theories and scientific laws are based on hypotheses. But a theory is the explanation of an observed phenomenon, while a scientific law is the description of an observed phenomenon.

The movements of bodies in space are governed by Newton's Laws. These are laws why they are demonstrated by mathematical formulas and Universal application.

Then, the correct option is <u><em>"It is a law because it is a statement of fact that does not need any more experimental support."</em></u>

5 0
3 years ago
Help me with this attachment please​
Anna007 [38]

Answer:

See explanation

Explanation:

Let us recall that the basic rule in writing balanced chemical reaction equations is that the number of atoms of each element on the right hand side of the reaction equation is the same of the number of atoms of the same element on the left hand side of the reaction equation.

The reaction of red hot iron and steam is written as follows;

3Fe + 4H2O → Fe3O4 + 4H2.

The decomposition reaction of ammonium dichromate is written as;

(NH4)2Cr2O7 → N2 + Cr2O3 + 4H2O

Reaction of aluminium, sodium hydroxide and water is as follows,

2Al + 2NaOH + 2H2O ----> 2NaAlO2 + 3H2

Reaction of potassium bicarbonate with sulphuric acid;

2KHCO3 + H2SO4 -------> K2SO4 + 2H2O + 2CO2

Reaction of zinc and sodium hydroxide is as follows;

Zn + 2NaOH→Na2ZnO2 + H2

5 0
3 years ago
The element N (nitrogen) is an example of a ___
mina [271]

Hello!

Elements are made up of atoms, and elements combine to make compounds. Compounds are made up of molecules, and molecules are made up of atoms.

Nitrogen is an element. It could be made up of one or many atoms. A mixture is made up of compounds, so it is not the answer.

Molecules and compounds are made up of different atoms and elements, but nitrogen is not a molecule or a compound.

There is such a thing as a nitrogen atom, though.

Therefore, your answer would be 2) Atom.

I hope this helps!

6 0
3 years ago
Which of the aqueous solution does not conduct electricity ? 1.Ca(NO3)2 / 2.CH3NH2/ 3.CH3OH/ 4.CH3COOH
bezimeni [28]

For an aqueous solution to conduct electricity, ions must be present in solution.

This means soluble salts will conduct electricity. Also, since acids and bases have ions in solution, they could also conduct electricity. Option 1 is a soluble salt. Options 2 and 4 are base and acid respectively. Option 3, though soluble in water, exist as a molecule, therefore its solution cannot conduct electricity.

8 0
3 years ago
What is the molarity when 100 mL of 1.5 M Kcl is diluted to 300 mL?
Phantasy [73]

Formula M1V1 =M2V2

1.5 * 100 = M2 *300

M2 = 1.5*100/300= 0.5.

Answer: the molarity is 0.5M.

6 0
3 years ago
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