Which statements about acceleration are true? Check all that apply.

A. The symbol for acceleration is a.

I B. The SI units for acceleration are miles per hour per second.

O C. To calculate acceleration, divide the change in velocity by the
change in time.

D. For acceleration, you must have a number, a unit, and a direction.

SUBMIT

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890

what does the table look like

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

може ли да зареждате повече информация, моля