Higher than.
that’s because ionic bonds are stronger and more complex than covalent bonds, so more heat is required to break them <3
Answer: An element with the same number of protons, but a different number of neutrons
Explanation:
The # of protons in an atom is what determines what atom it is (hydrogen has 1 proton, helium has 2 protons, etc ...). You cannot change the number of protons in an atom without changing what element the atom is.
The number of electrons in atoms varies greatly because electrons are constantly gained, lost, and shared during chemical reactions.
An isotope is a variation of the same element (so they must have the same # of protons) that have different masses (and therefore a different number of neutrons).
The answer is the fourth choice, "An element with the same number of protons, but a different number of neutrons"
Answer:
54 g
Explanation:
To solve this problem we will simply follow the Law of conservation of mass.
According to this law:
" The mass of product in the chemical reaction must be equal to the mass of reactant"
Given data:
mass of methane= 24 g
mass of oxygen= 96 g
mass of carbon dioxide= 66 g
mass of water= ?
Solution:
CH4 + 2O2 → CO2 +2H2O
24g + 96 g = 66 g + ?
120 g = 66 g + ?
120 g - 66 g = 54 g
so 54 g of waters are produce.
We can see that mass of water is equal to the sum of masses of reactant minus mass of product formed i.e mass of carbon dioxide.