H₂O + H₂O ⇌ H₃O⁺ + OH⁻
You use two single-barbed arrows pointing in opposite directions (technically rightwards harpoon over leftwards harpoon) <em>to indicate a reversible reactio</em>n.
Answer:
Actual velocity of the ping-pong ball= 5 m/s
Explanation:
velocity of ping pong ball because of the shot gun= 4 m/s North
velocity added to the ping-pong ball due to the wind=3 m/s
These velocities are perpendicular to each other. so we use Pythagoras theorem to find the resultant velocity of the ping- pong ball
so the actual velocity of the ping-pong ball =V= √4²+3²
V= √25
V= 5 m/s
Explanation:
WANNA TALK ON PADLET BOY
Well the two Gases we use Are hydrogen and helium which Are both lighter than air. We know This Because it can make a ballon float Also, When you inhale helium, you're changing the type of gas molecules in your vocal tract and increasing the speed of the sound of your voice. but the vibration frequency of the vocal cords doesn't change along with the type of gas molecules that surround them. When You use the Periodic Table You look at the Numbers at the top of the element, (atomic numbers) it starts at the Number 1 the element that Weighs the lowest all the way to 118 the element that Weighs the most. If we look a hydrogen and helium on the Periodic Table Their atomic Numbers Are 1 and 2 while oxygen and nitrogen Are at 7 and 8 on the Periodic Table so hydrogen and helium Weighs less than air so it will make a ballon float
Answer:
In the valence shell, it should have 8 valence electrons.
Explanation:
Molecular mass is the weight of a molecule calculated by adding the total atomic mass of each constituent multiplied by the number of atoms in a given molecule of a compound.
In this case, C= 12, O=16, H= 1, in ethanol there are 6 atoms of hydrogen, 2 atoms of carbon and 1 atom of oxygen.
Therefore, mass = (12×2) + (16×1) + (1×6) =46
hence, the molecular mass of ethanol is 46
