a) A combound which contains only Carbon and Hydrogen. There are covalent bonds between atoms. Hydrogen form one single bond and Carbon forms four covalent bonds. Carbon bonds can be single, double or triple bonds.
All hydrocarbons are organic compounds, but organic compound can include atoms of other elements.
b) Alkyne has a covalent triple bond between two carbon atoms. Simplest alkyne is ethyne HCCH.
b) Alkane contains only Carbon and Hydrogen and there are single bonds
between atoms. Simplest alkane is methane CH4.
c) An alkene has one double bond between Carbon atoms. Simplest
alkene is ethene H2C=CH2.
Answer:
B. increase the distance between the objects
Explanation:
A) increase the mass of one of the objects
Answer:
394.76g
Explanation:
Given parameters:
Mass of Phosphorus = 172.1g
Unknown:
Mass of P₂O₅ = ?
Solution:
We should work from the known specie to the unknown in this problem. The limiting reactant is the reactant in short supply and it determines the extent of the reaction. This is the given phosphorus.
Oxygen is in the excess.
The balanced reaction equation:
4P + 5O₂ → 2P₂O₅
let us find the number of moles of phosphorus first,
Number of moles of phosphorus = 
Molar mass of phosphorus = 31g/mole
Number of moles = 
= 5.55mole
4 moles of phosphorus gives 2 moles of P₂O₅
5.55 mole of P will produce 
= 2.78moles
Mass of P₂O₅ = number of moles x molar mass
Molar mass of P₂O₅ = (31 x 2) + (16 x 5) = 142g/mole
Mass of P₂O₅ = 2.78moles x 142g/mole = 394.76g
Answer:
Letter A
whether a trait is learned or inherited
Explanation:
The nature versus nurture debate involves the extent to which particular aspects of behavior are a product of either inherited (i.e., genetic) or acquired (i.e., learned) influences. Nature is what we think of as pre-wiring and is influenced by genetic inheritance and other biological factors.
