The number of covalent bonds that an atom can make is determined by the no. of electrons needed to form a duplet or octet of electron by each of the atom.
Mass = 39.0 gal × (3.785 L/1 gal) × (1000 mL/1 L) × (0.789 g/1 mL) × (1 lb/453.6 g) = 257 lb
Answer:
physical
Explanation:
you are only changing the physical shape of the paper and not the chemical structure
Answer:
yes
Explanation:
the results are CO2 and H2O, which usually appear after some kind of combustion.(combustion=burning)
hope this helps!
Answer:A theory is a well-substantiated explanation of an aspect of the natural world that can incorporate laws, hypotheses and facts.
Explanation: