<span>I would propose the word trigonal pyramidal or pyramidal . This is because the bond angle in ammonia ( also known as NH3) is about 107 degrees. Also please note that the number of bonding pairs of electrons in ammonia (NH3) is 3 and the Number of lone pairs of electrons in ammonia(NH3) is 1. Finally it has 8 valence electrons (5 + 3x1 = 8).</span>
Explanation:
<u>Moles is denoted by given mass divided by the molecular mass , </u>
Hence ,
n = w / m
n = moles ,
w = given mass ,
m = molecular mass .
For example ,
For a compound X ,
The given mass i.e. w = 20 g
and the molecular mass ,i.e. , m = 10 g / mol
Then the moles can easily be calculated by using the above formula ,
n = w / m
n = 20 g / 10 g/mol = 2 mol
Hence , answer = 2 mol.
<span>ionic compounds usually involve a metal and a non metal, and non ionic (or covalent) bonds are usually between 2 non metals
a) Fe3P2 Iron is a metal, Phosphorus is a non metal so it is likely to be non ionic
p.s metals are on the left of the periodic table and non metals on the right</span>
Answer: 1080
Explanation:
you have to subtract 40 from 13 frist then multiply the remins of the temeture with 40 and your answer is 1080
6CO2 + 7H2O = C6H12O6 + 6O2 + H2O
Explanation:
CO2 + H2O = C6H12O6 + O2 + H2O
Starting carbon atoms,
1C on reactants and 6C on products,
therefore you should start by putting a 6 on CO2
6CO2 + H2O = C6H12O6 + O2 + H2O
Proceed with Hydrogen,
Reactants → 2H
Products → 14H
You should multiply H2O with 7 .
6CO2 + 7H2O = C6H12O6 + O2 + H2O
the we need to proceed for Oxygen,
Reactants → 12 + 7= 19O
Products → 6 O in C6H12O6, 2O in O2 and 1O in H2O
we need to balance the equation without disrupting the balance of other atoms, so we need to Multiply O2 with 6
The required balanced equation is
6CO2 + 7H2O = C6H12O6 + 6O2 + H2O