Answer
512kj/mole
Explanation:
What is the work function of gold metal in kJ/mol if light with λ = 234 nm is necessary to eject electrons?
The energy can be calculated using below expresion;
E = hc/λ
Where h= planks constant= 6.626 x 10^-34
c= speed of light= 3 x 10^
λ= wavelength
hc= (6.626 x 10^-34 x 3 x 10^ 8)
=
Answer:A(n) molecule that is made up of atoms that are chemically bonded is the smallest recognizable unit of a compound.
Explanation:
Answer:
Polysaccharide.
Explanation:
Biomolecules are the important chemical compounds present in living organisms that plays an important role to maintain life. Four different molecules are carbohydrates, fats, proteins and nucleotides.
Glucose is the hexose sugar made of carbon, hydrogen and oxygen with six carbon atoms. The glucose forms the monomers of carbohydrates. If large amount of glucose molecules combine together they will form the polysaccharides that leads to the carbohydrate formation.
Thus, the correct answer is polysaccharide.
Answer:
7 L of H₂.
Explanation:
The balanced equation for the reaction is given below:
2H₂ + O₂ —> 2H₂O
From the balanced equation above,
1 L of O₂ required 2 L of H₂.
Finally, we shall determine the volume of H₂ required to react with 3.5 L of O₂. This can be obtained as follow:
From the balanced equation above,
1 L of O₂ required 2 L of H₂.
Therefore, 3.5 L of O₂ will require
= 3.5 × 2 = 7 L of H₂.
Thus, 7 L of H₂ is required to for the reaction.
