Answer: transverse wave is a progressive wave whose oscillations are perpendicular to the direction of the wave
Explanation:
The metal compound in period 3 is a group 1 metal - Na.
the compound is Na2O, the base annyhdride of NaOH :)
Answer:
Molarity of a solution that contains 3.11 mol of NaNO3 is 1,24 M
Explanation:
We understand molarity as the number of moles of solute that are contained in 1 L of solution, then if in a solution of 2.50 L we have 3.11 moles, it remains to calculate how many moles do we have in 1 liter.
2,50 L .......... 3,11 moles
1 L .................. x
X = ( 1 L x 3,11 moles) / 2,50 L = 1,24
Answers:
A) Li
B) Ar
C) Br
D) Ne
E) B
