If someone can me ill mark brainliest ‼️‼️‼️‼️‼️and ill friend request you look at the picture and go through it with me step by step

under question 3 for the fill out parts it should be this:

at the start, the ball had potential energy, which transferred to Kinetic energy as it rolled down the ramp. when the ball reached its highest point on the other side of the ramp, its energy transferred into potential energy.

(I have a great science teacher and this is what i believe is correct. if you want further evidence go ahead and ask away.)

question 1.

a. Gravity

b. For every action there is an equal and opposite reaction.

question 3. Potential Energy, Kinetic Energy, Potential Energy

Question4. Change in speed over time

Explanation:

you didnt put any of the following

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2