D4 is the best i think ok
Answer:
water
Explanation:
water have 2 elements which is hydrogen and oxygen. the other 3 options contains one element only
What is the question exactly?
Answer:
The speed of the boat-A is 47.84 knots.
Explanation:
Mass of boat-A = m
Mass of boat-B = m
Kinetic energy if the boat-A = E
Kinetic energy if the boat-B = E'
Velocity of boat-A = v = ?
Velocity of boat-B = v'= 34 knots = 34 nautical miles /hour
1 knot = 1 nautical mile per hour
1 nautical mile = 6,076 feet
34 nautical miles /hour = 34 nautical miles /hour × 6,076 ft/miles = 205,564 ft/hour
Kinetic energy of boat-A is given by :
Kinetic energy of boat-A is given by :
..[1]
Kinetic energy of boat-B is given by :
..[2]
E= 2E' (given)
[1] ÷ [2]
v' = 47.84 knots
The speed of the boat-A is 47.84 knots.
If 6 units of AB were reacted with 10 units of CD in the described equation, the limiting reactant would AB
<h3>Limiting reactants</h3>
They are reactants that determine how far a reaction can go in terms of yield.
From the equation: 3AB + 4CD --> 2AD + 6CB
The mole ratio of AB to CD is 3:4
Thus, 6 units of AB will require 8 units of CD.
But 10 units of CD were reacted with only 6 units of AB. This means that CD is in excess by 2 units while AB will limit the yield of the reaction.
More on limiting reactants can be found here: brainly.com/question/14225536