Unbalanced it should be 2Zn+2Hcl=2ZnCl2+H2
Answer:
Explanation:
Examples of pure substances include tin, sulfur, diamond, water, pure sugar (sucrose), table salt (sodium chloride) and baking soda (sodium bicarbonate). Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances that are chemical elements.
Answer:
Peatification and coalification
Explanation:
https://energyeducation.ca/encyclopedia/Coal_formation
The number of valence electrons of an element can be determined by the periodic table group (vertical column) in which the element is categorized
Particles below the surface of a liquid
