Light waves that cross from an air medium to a water medium will

Based on your understanding of how bond types influence a material’s properties, identify each of the following compounds as bei

siniylev [52]

Answer: The given compounds are identified as being made of ionic, covalent, or metallic bonds:

Steel - Metallic bonds
Propane - Covalent bonds
Calcium chloride - Ionic bonds
Water - Covalent bonds

Explanation:

A bond formed by transfer of electrons from one atom to another is called an ionic bond. An ionic bond is formed between a metal atom and a non-metal atom.

A bond formed by transfer of electrons from one atom to another is called a covalent bond. A covalent bond is formed between two or more non-metal atoms only.

Steel is actually an alloy of carbon and iron where there is less than 2% carbon, 1% manganese and small amounts of silicon, phosphorus, oxygen and sulphur are present.

When atoms of metals are held together then bond formed between these atoms is called metallic bond.

Hence, steel is made of metallic bond.

Chemical formula of propane is $CH_{3}CH_{2}CH_{3}$ as there are only non-metal atoms are present. So, sharing of electrons takes place in such atoms due to which covalent bonding will be there.

Hence, propane is made up of covalent bonds.

Calcium chloride contains a metal and a non-metal atom. This means that electrons are being transferred from calcium atom to the chlorine atom. Hence, bond present in calcium chloride is ionic bond.

Water has chemical formula $H_{2}O$ . Since, non-metal atoms are present there so sharing of electrons takes place between hydrogen and oxygen atoms. Hence, covalent bond is present in water.

Thus, we can conclude that given compounds are identified as being made of ionic, covalent, or metallic bonds:

Steel - Metallic bonds
Propane - Covalent bonds
Calcium chloride - Ionic bonds
Water - Covalent bonds

7 0

3 years ago

You have a hypothesis that you can dissolve more sugar in hot water than cold water

Gnesinka [82]

Answer:

The indepandent variable is wether its hot or cold water, so the tempurature of the water. The dependant variable is how much sugar disolves.

Explanation:

The indepandant variable is what changes or has a direct affect on the depandant. The depandant is what is being mesured or tested.

3 0

3 years ago

The water that moves over the land is and carries particales is a called a

yulyashka [42]

It is called a runoff

3 0

3 years ago

Which of the chemical equations is balanced?

Simora [160]

The third equation is properly balanced.

To figure this out, set up tables to check if each element has the same amount on both sides. If you do this for the third equation, copper, hydrogen, oxygen, and nitrogen are all balanced,

The first equation is incorrect due to the fact Iron, Fe, is not balanced on both sides. This is shown by the subscripts given.

The second equation is incorrect as Sulfur is not properly balanced and neither is sodium.

The fourth equation is incorrect as Aluminum is not properly balanced. On the reactants side, Aluminum is 4 while on the products, Aluminum is 8.

Hope this helps!

6 0

3 years ago

Give the coefficient of y in the following expression. 2xz² - 7xy + 4.

ArbitrLikvidat [17]

Answer:

the coefficient of y is -7

3 0

3 years ago