The correct answer for this question is +3OH
Answer:
When the drumstick hits the drum, it exerts a force on the drum. Newton’s third law states that if a force from object A is exerted onto object B, then an equal and opposite force from object B is exerted onto object A. By Newton‘s third law, the drum also exerts a force on the drumstick.
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Answer:
In this reaction HCl is the limiting reactant and aluminium is the reactant in excess.
Explanation:
Step 1: Data given
Mass of HCl = 69.0 grams
Mass of Al = 78.0 grams
Molar mass HCl = 36.46 g/mol
Atomic mass Al = 26.99 g/mol
Step 2: The balanced equation
6HCl(aq) + 2Al(s) → 3H2(g) + 2AlCl3(s)
Step 3: calculate moles HCl
Moles HCl = mass HCl / molar mass HCl
Moles HCl = 69.0 grams / 36.46 g/mol
Moles HCl = 1.89 moles
Step 4: Calculate moles Al
Moles Al = 78.0 grams / 26.99 g/mol
Moles Al = 2.89 moles
Step 5: Calculate the limiting reactant
For 6 moles HCl we need 2 moles Al to produce 3 moles H2 and 2 moles AlCl3
HCl is the limiting reactant. It will completely be consumed (1.89 moles). Aluminium is the reactant in excess. There will react 1.89 / 3 = 0.63 moles
There will remain 2.89 - 0.63 = 2.26 moles aluminium
In this reaction HCl is the limiting reactant and aluminium is the reactant in excess.
Convergent plate boundaries if I’m not mistaken
83.3 mL
Explanation:
M
= 3M
V
= 50mL
M
= 1.80M
Unknown:
V
= ?
Solution:
To solve this problem we must understand that the initial and final number of moles remains the same.
Number of moles = molarity x volume
Molarity x volume of initial solution = Molarity x volume of final solution
Therefore:
M
x V
= M
x V
M is the molarity
V is the volume
i = initial state
f = final state
input the parameters;
3 x 50 = 1.8 x V
V
= 83.3 mL
learn more:
Molarity brainly.com/question/9324116
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