Answer:
not the same result
Explanation:
chemical change is a change in which atoms are rearranged
physical change is a change which results no new chemical substances being formed
Answer:
63.6 dm³
Explanation:
Volume of gas= no. of moles ×24dm³
Thus, volume of N₂O
= 2.65 × 24
= 63.6 dm³
Answer:
did not understand a thing
Answer:
Checking characteristics of metals and non-metals can be found
Answer:
An element's atomic number is equal to the number of protons in the nuclei of any of its atoms. The mass number of an atom is the sum of the protons and neutrons in the atom. Isotopes are atoms of the same element (same number of protons) that have different numbers of neutrons in their atomic nuclei