1 kg ---------- 1000 g
4.84 kg ------ ?
4.84 x 1000 / 1 => 4840 g
D = m / V
7.86 =4840 / V
V = 4840 / 7.86
V = 615.77 cm³
1 cm³ ------------ 0.01 dL
615.77 ----- ?
615.77 x 0.01 / 1
= 6.1577<span> dL</span>
Answer:
1:1
Explanation:
The ratio of metal cationic atom to non-metal anionic atom in the compound is 1:1.
This is an ionic compound.
- This is because metal cationic atom has two valence electrons.
- Non-metal anionic oxygen has six valence electrons
- Calcium loses two of its valence electrons to be isoelectronic with Ar and this confers a stable configuration to it.
- Non-metal oxygen atom accepts the electrons and adds 2 to its 6 electrons to become isoelectronic with neon.
- So, 1 metal cationic atom combines with 1 non-metal anionic atom to form the compound.
I think methane and propane
Answer:
See explanation
Explanation:
In electrophillic aromatic substitution, an electrophile attacks the aromatic ring and resonance structures are created.
We know that the nature of the substituents already present in the ring determines the position to which the incoming substituent is directed.
-OCH3 is an ortho-para director. If the -OCH3 is present at position 1 and the ring is brominated at position 4, the resonance structures shown in the image attached are observed.
