Explanation:
“The isomers butane and methyl propane have the same molecular formula and different properties”, this is because structural isomers usually have different properties to their parent.
Answer: C
Explanation:
According to Neils Bohr, atoms contain electrons which are arranged in energy levels. The energy levels proceed from the lowest to the highest. When energy is supplied to an atom,it moves from lower to higher energy levels. The higher energy level is known as the excited state. Excited states are short lived and atoms quickly return to ground state with emission of the absorbed energy in the form of visible light. This visible light must have one of the seven colours observed in the visible spectrum; Red, orange, yellow, indigo, blue, green, violet. Energy required for this excitation is supplied by heating the substance in a flame.
Answer:
to do day-to day activities easily and make surrounding comfortable for man
Explanation:
as an example , binary numbers help to work computers ,calculators.they help us lot .
scientific methods also need to write large and small numbers in short ways .so, scientists find various patterns .
1.1 Moles / 0.5 Liters = 0.22 Molarity
The chemical equation for the combustion of methane is CH4 + 2O2 --> CO2 + 2H2O.
The coefficients of that equation are 1, 2, 1, and 2, in the order you asked for.
