-
NaBr + __Ca(OH)2 →
CaBr2 + _
NaOH
How do you balance these

Hey there!

NaBr + Ca(OH)₂ → CaBr₂ + NaOH

Balance OH.

2 on the left, 1 on the right. Add a coefficient of 2 in front of NaOH.

NaBr + Ca(OH)₂ → CaBr₂ + 2NaOH

Balance Na.

1 on the left, 2 on the right. Add a coefficient of 2 in front of NaBr.

2NaBr + Ca(OH)₂ → CaBr₂ + 2NaOH

Balance Br.

2 on the left, 2 on the right. Already balanced.

Balance Ca.

1 on the left, 1 on the right. Already balanced.

Our final balanced equation:

2NaBr + Ca(OH)₂ → CaBr₂ + 2NaOH

Hope this helps!

these nuts

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.