Answer:
200 L per day
Explanation:
If there is 1 mg of F- per L of water, we can calculate the volume for 2 g like this:
1) Converse the toxic mass of fluoride to miligrams
1 g ------- 1000 mg
0.2 g ---- X
X = 200 mg
2) Calculate the liters of fluoridated drinking water that a person can consume to reach 200 mg
1 mg -------- 1 L
200 mg ---- X
x = 200 L
Answer:
CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(l).
Explanation:
CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(g)
2H₂O(g) → 2H₂O(l)
- To add the two equations: we omit H₂O(g) that is formed by 2 moles in the product side of the first equation and consumed by 2 moles from the reactants side in the second equation
- So, the overall chemical equation is obtained by combining these intermediate equations is:
<em>CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(l).</em>
<em></em>
Answer:
to go against dangerous viral and bacteria
Explanation:
By creating combinations of atoms to form substances.
Explanation:
Atoms are the building unit of cells, that are the building blocks of all things. each factor that exists is comprised of cells of assorted components and compounds, held along by atomic bonds.Everything in the universe is composed of atoms.
Answer:
it can be tooo. long or coplicated because nomatter how long u stay in school they give u homework and also a lot of people have jobs when would they be ableto work
Explanation:
