Reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products. Hope this helps!
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whenever you have problem for ph and poh just make this table and go from there .
Ph = 14 - Poh
Poh = 14- Ph
Answer:
We typically represent covalent bonds with a dash ( - ) between the atoms. This indicates a single bond. Ex: Cl - Cl
Single bond, double bond, triple bond.
Explanation:
We call it a single covalent bond because the atoms are sharing a single pair of electrons.
Reaction sequence:
2c(s) + o2(g) -> 2co(g)
fe3o4(s) + 4co(g) -> 3fe(l) + 4co2(g)
According to first equation, 2 moles of carbon produce 2
moles of carbon monoxide. So 1 mole of carbon will produce 1 mol of carbon
monoxide (the same number).
According to the second equation, 4 moles of carbon monoxide
produce 3 moles of iron. We should make the cross multiplication with those
numbers:
4 moles CO/3 moles iron = 1 mol CO/x
x = 1 mol CO*3 moles iron/4 moles CO = 0.75 moles of iron
Answer and explanation;
-Knowledge of chemistry allows the public to make informed decisions.
-Since chemistry is the basis of everything in life, knowing the basics allows us to make smarter decisions. With a knowledge of chemistry, one can form better opinions about the day’s news. An individual will be able to distinguish the truth from the lies in environmental reporting, and better understand the meaning of a chemical spill.
-One can even better decide what your opinion on public policy should be by using your own knowledge of science rather than trying to figure out which politician or pundit is the least untrustworthy.
