When the toy is falling down the steps some of the Kinetic energy is changing to potential energy. As it is still falling some of the potential energy changes to kinetic energy.
Hope this helps
Answer:
Explanation:
The two carbon atoms would be different. These different carbon isotopes are called isotopes. Isotopy is the existence of two or more atoms of the same element having the same atomic number but different mass number due to the difference in the number of neutrons in their various nuclei.
Carbon for example has 3 known isotopes which are:
¹²₆C ¹³₆C ¹⁴₆C
These isotopes have different places in nature where they can be found. Some can occur together naturally.
Isotopes have the same chemical properties because they share similar electronic configuration.
The correct option is C.
Because different elements have different masses, they also end up having different number of energy levels. Different elements emit different emission spectra when they are excited because of their unique energy levels. Each emission spectra has different color. Scientists can easily analyze the composition of a matter by analyzing its spectrum.
Its either B or D. Because They can both work
Answer: 38.52 moles of hydrogen will be required to produce 19.26 mol of methane
Explanation:
To calculate the moles :
The balanced chemical reaction is:
According to stoichiometry :
1 mole of is produced by = 2 moles of
Thus 19.26 moles of will be produced by = of
Thus 38.52 moles of hydrogen will be required to produce 19.26 mol of methane