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3 years ago

Water is a compound because it is what?Water is a compound because it

Physics

2 answers:

hoa [83]3 years ago

8 0

<u><em>Option (B) is correct. Water is a compound because it is formed from the combination of two hydrogen and one oxygen atom.</em></u>

Explanation:

The substance exists in nature n the form of elements, molecules, compounds etc. A substance is considered to exist in elemental form when single atom of that element can exist freely in nature.

There are some substances which are diatomic in nature. They occurs as the combination of two atoms of the same element. The substance also exists in the molecular form where the substance is a combination of the atoms of different molecules.

The compounds are the substances that are formed by the chemical combination of the elements by the formation of bonds between the elements.

The ionic bond or the covalent bonds are formed between the elements for the formation of the ionic or covalent compounds respectively.

Water is considered as a compound as it is formed from the chemical combination of two atoms of hydrogen and one atom of oxygen that are attached to each other by a covalent bond.

The <u>process of electrolysis of water can break the bond between hydrogen and oxygen atom and can led to the formation of the simpler substances.</u>

Thus, <u><em>Option (B) is correct. Water is a compound because it is formed from the combination of two hydrogen and one oxygen atom.</em></u>

Learn More:

1. The type of mirror used by a dentist brainly.com/question/997618

2. Calculate the wavelength of electron emitted brainly.com/question/1979815

3. Non-point source of water pollution brainly.com/question/1482712

Answer Details:

Grade: Middle school

Subject: Physics

Chapter: Water

Keywords:

water, compound, electrolysis, molecules, elements, atoms. chemical combination, ionic bond, covalent bond, hydrogen atoms, oxygen.

seraphim [82]3 years ago

5 0

Water is a compound because it always has two hydrogen atoms for each oxygen atom. Water can be broken down into simpler substances. Water is a compound because pure water is composed of only H₂O molecules. Each molecule of water is a chemical combination of two hydrogen atoms and one oxygen atom. Water is a type of molecular compound.

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<h3>Further explanation</h3>

Compounds are substances composed of two or more different elements chemically combined that can be separated into simpler substances only by chemical reactions.
Water, for example, is a compound because pure water is composed of only H₂O molecules. Each molecule of water is a chemical combination of two hydrogen atoms and one oxygen atom.
A molecular bond or covalent bond occurs as a result of electrons can be shared between atoms. Molecular compounds have molecular (covalent) bonds.
An ionic bond occurs as a result of electrons can be completely removed from one atom and given to another. Ionic compounds have ionic bonds.
Examples of other molecular compounds are carbon dioxide (CO₂) and glucose (C₆H₁₂O₆). Each molecule of CO₂ is a chemical combination of two oxygen atoms and one carbon atom. Each molecule of C₆H₁₂O₆ is a chemical combination of six carbon atoms, twelve hydrogen atoms, and six oxygen atoms.
Table salt (NaCl) is a compound because it is made from more than one kind of element (Na and Cl), but it is not a molecule because the bond that holds NaCl together is an ionic bond. An electron from the outer shell of sodium is released and taken by chlorine to reach octet conditions on both sides, that is how ionic bonds occur. Thus NaCl is an ionic compound.
A diatomic molecule is a molecule made from two atoms of the same type. For example, oxygen gas in the atmosphere is a molecule because it contains molecular bonds. It is not a compound because it is made from atoms of only one element, i.e. oxygen. Another example is hydrogen gas, nitrogen gas, and chlorine gas.
Elements are the simplest forms of matter and therefore cannot be broken down into simpler substances by any chemical or physical reactions. Some examples of elements include hydrogen, oxygen, carbon, sodium, iron, and sulfur. Elements can combine with other elements to synthesize compounds.

<h3>Learn more</h3>

Which statement best explains water’s ability to dissolve covalent compounds? brainly.com/question/8223274
How do ionic bonds differ from covalent bonds? brainly.com/question/2092388
Which elements can react to produce a molecular compound? brainly.com/question/867874

Keywords: water, H₂O, molecular compound, because, can be broken down into, separated, simpler substances, always has two hydrogen atoms, for each, is made of, joined together, covalent, ionic, chemical reactions, means, composed, of two or more, different elements, combined

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3 years ago

the gas in a balloon has P=100000 pa and v=0.0279 m^3. if the pressure increases to 120000 pa at constant temperature, what is t

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calculate the mass of potassium chlorate (kcio3) required to obtain 10g of oxygen in the following reaction:kclO3-kcl+O2

igor_vitrenko [27]

First, balance the reaction:

_ KClO₃ ==> _ KCl + _ O₂

As is, there are 3 O's on the left and 2 O's on the right, so there needs to be a 2:3 ratio of KClO₃ to O₂. Then there are 2 K's and 2 Cl's among the reactants, so we have a 1:1 ratio of KClO₃ to KCl :

2 KClO₃ ==> 2 KCl + 3 O₂

Since we start with a known quantity of O₂, let's divide each coefficient by 3.

2/3 KClO₃ ==> 2/3 KCl + O₂

Next, look up the molar masses of each element involved:

• K: 39.0983 g/mol

• Cl: 35.453 g/mol

• O: 15.999 g/mol

Convert 10 g of O₂ to moles:

(10 g) / (31.998 g/mol) ≈ 0.31252 mol

The balanced reaction shows that we need 2/3 mol KClO₃ for every mole of O₂. So to produce 10 g of O₂, we need

(2/3 (mol KClO₃)/(mol O₂)) × (0.31252 mol O₂) ≈ 0.20835 mol KClO₃

KClO₃ has a total molar mass of about 122.549 g/mol. Then the reaction requires a mass of

(0.20835 mol) × (122.549 g/mol) ≈ 25.532 g

of KClO₃.

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