In order to compute mean, you have to add all values of the data set up and divide by the number of data values there are.
In this case, the total sum of all data values is: 81+88+69+65+87=390
The number of data values is 5
To compute mean: 390/5=78
The mean height of the corn stalks is 78cm (C)
Nuclear power plants heat water to produce steam. The steam is used to spin large turbines that generate electricity. ... In nuclear fission, atoms are split apart to form smaller atoms, releasing energy. Fission takes place inside the reactor of a nuclear power plant.
Answer:
6.6023g
Explanation:
To create a 0.247 M solution required weight of barium hydroxide.
0.247 x 171.346 =42.322g per liter
Therefore required mass for 156g of water = 42.322 x 0.156 = 6.6023g
Answer:

Explanation:
(a) Balanced equation
3NaOH + H₃PO₄ ⟶ Na₃PO₄ + 3H₂O
(b) Moles of NaOH

(c) Moles of H₃PO₄
The molar ratio is 1 mol H₃PO₄:3 mol NaOH.

(d) Molar concentration of H₃PO₄

Polarity? Because that shows what poles each side has or it’s something got to do with alignment of something I don’t quite remember