Answer:
I = 1.23 A
Explanation:
Given that,
The resistance of the lightbulb, R = 96.8 Ω
Voltage, V = 120 V
We need to find the current flows through the lightbulb. Let the current be I. We can use the ohm's law to find it i.e.
So, the current flows through the bulb is 1.23 A.
Answer:
E) NaF and SrO
Explanation:
The ionic bonding occurs between atoms with a great difference in electronegativity. This usually happens between a metal and a non-metal.
<em>In which pair do both compounds exhibit predominantly ionic bonding? </em>
A) KCl and CO₂. NO. C and O are non-metals and present covalent bonding.
B) SO₂ and BaF₂. NO. S and O are non-metals and present covalent bonding.
C) F₂ and N₂O. NO. Both compounds contain non-metals and present covalent bonding.
D) N₂O₃ and Rb₂O. NO. N and O are non-metals and present covalent bonding.
E) NaF and SrO. YES. Na and Sr are metals while F and O are non-metals.
Answer:
Ionosphere.
Explanation:
The atmospheric layer that is represented by F is known as IONOSPHERE.
The characteristics of Ionosphere
1. It is considered to be located in the upper layer of the earth's atmosphere due to the location of region F.
2. It is ionized by solar radiation that contains an electrical charge.
3. It functions as a reflector. This can be observed in radio waves broadcasting.
The % composition of each element is calculated as follows
= mass of the element/total mass x100
total mass= 73.5+4.2+72.3=150
% composition of C = 73.5/150 x100=49%
% composition of H= 4.2/150 x100= 2.8%
%composition of Cl= 72.3/150 x100= 48.2%
