Answer:
C,B,A
Explanation:
C has the most similar structure
B has the second most similar structure
A has the least similair structure
I believe the answer is B.
Answer:
8
Explanation:
the number before the abbrviation for calcium (Ca) shows how many calcium there is.
Answer is: 1) formula mass.
Formula weight is given in atomic mass units (amu).
The unified atomic mass unit (amu) is a standard unit of atom mass.
Atomic mass of carbon atom is 12.01 amu.
Atomic mass of hydrogen atom is 1.01 amu.
Atomic mass of bromine atom is 79.9 amu.
In chemical compound C₃H₆Br₂ there are three carbon atoms, six hydrogen atoms and two bromine atoms.
M(C₃H₆Br₂) = 3 · 12.01 amu + 6 · 1.01 amu + 2 · 79.9 amu.
M(C₃H₆Br₂) = 201.89 amu; formula mass of one molecule.
1.) <span>2Na(aq)+2H2O(l)→2NaOH(aq)+H2(g),
Na is oxidizing agent and H is reducing agent.
2.) </span><span>C(s)+O2(g)→CO2(g)
C is an oxidizing agent
3.) </span><span>2MnO−4(aq)+5SO2(g)+2H2O(l)→2Mn2+(aq)+5SO2−4(aq)+4H+(aq)
Mn is reducing agent and S is oxidizing agent.</span>
