What is the significance of carbon having four valence electrons?
The outermost shell never fills making it unstable
The outermost shell can only bond with hydrogen
The outermost shell can form up to four covalent bonds
The outermost shell is full making it stable
The correct answer is: The outermost shell can form up to four covalent bonds.
The significance of carbon having four valence electrons is that it can form up to four covalent bonds with other atoms. This property allows carbon to form a wide range of complex and diverse compounds, which is essential for the chemistry of life. Carbon-based molecules, such as carbohydrates, lipids, proteins, and nucleic acids, are the building blocks of living organisms and play crucial roles in various biological processes.
What is the definition of a hydrocarbon?
A hydrocarbon is an organic compound consisting of hydrogen and carbon atoms. It is a type of compound primarily composed of carbon and hydrogen elements. Hydrocarbons can exist in various forms, such as alkanes, alkenes, alkynes, and aromatic compounds. These compounds are the fundamental constituents of fossil fuels like coal, oil, and natural gas, and they also occur naturally in living organisms. Hydrocarbons are known for their combustibility and are widely used as fuels and raw materials in many industrial processes.
What is the definition of a hydrocarbon?
a single line bonding hydrogen and carbon
a large chain of carbons and hydrogens bonded together
electrons shared between two different atoms
large molecules that are produced by living things
A hydrocarbon is a type of organic compound composed solely of hydrogen and carbon atoms. It can refer to a single line bonding hydrogen and carbon (as in the case of a simple hydrocarbon like methane), or it can describe a larger chain of carbons and hydrogens bonded together (as in the case of longer hydrocarbon chains like butane or octane). Hydrocarbons can also include aromatic compounds, which are cyclic structures composed of multiple carbon and hydrogen atoms.
The definition does not necessarily involve electrons shared between two different atoms, as hydrocarbons are mainly composed of carbon and hydrogen. Additionally, while some large molecules produced by living things can be hydrocarbons, not all hydrocarbons are large molecules produced by living things.
What is the definition of a hydrocarbon?
a. a single line bonding hydrogen and carbon
b. a large chain of carbons and hydrogens bonded together
The correct answer is:
b. a large chain of carbons and hydrogens bonded together.
A hydrocarbon is an organic compound composed of hydrogen and carbon atoms. It can exist as a simple linear structure with single bonds between the carbon and hydrogen atoms (a single line bonding hydrogen and carbon), or it can be a larger chain consisting of multiple carbon atoms bonded together with hydrogen atoms attached to them (a large chain of carbons and hydrogens bonded together). Hydrocarbons can also include cyclic structures, such as aromatic compounds, where carbon atoms form a ring structure with alternating single and double bonds.
Which compound is a carbohydrate?
a. protein
b. starch
c. nucleotide
d. amino acid
The correct answer is:
b. starch
A carbohydrate is a type of organic compound that consists of carbon, hydrogen, and oxygen atoms. It is commonly found in foods and is an important source of energy for living organisms. Starch is a specific type of carbohydrate, specifically a polysaccharide, that is commonly found in plants. Proteins (a), nucleotides (c), and amino acids (d) are not carbohydrates. Proteins are macromolecules made up of amino acids, nucleotides are the building blocks of nucleic acids, and amino acids are the building blocks of proteins.
Which equation best represents conservation of matter?
a. 3H2O + 3CO2 → C6H12O6 + 6O2
b. 6H2O + 10CO2 → C6H12O6 + 4O2
c. 6H2O + 6CO2 → C6H12O6 + 6O2
d. 6H2O + 6CO2 → C3H6O3 + 3O2