NaCl is an ionic compound because Chlorine is a nonmetal and Sodium is a metal (Alkali Metal Group)
Answer:
20.7%
Explanation:
Percentage error = (difference in measurement ÷ real measurement) x 100%
= (3.26 - 2.70)/2.70 x 100%
= 0.56/2.7 x 100%
= 0.2074 x 100% = 20.74%
Accid rain is essentially rain but with not water but pollution from the atmosphere. Hope it helped. :)
Alright so
The "Fe" is just the symbol for Iron. Due to me not knowing if it is sitting above or below the baseline, but I'll assume it's below. This means that "Fe2" means there are 2 iron atoms.
And then the O3 represents 3 oxygen atoms in the compound.
And then the H2O is just the chemical formula for water, which consists of 2 hydrogen atoms and one oxygen atom.
Answer:
Option A = 14.19 atm
Explanation:
Given data:
Volume of gas = 2.50 L
Number of moles of gas = 1.35 mol
Temperature of gas = 320 K
Pressure of gas = ?
Solution:
The given problem will be solve by using general gas equation,
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K
T = temperature in kelvin
Now we will put the values in formula.
P × 2.50 L = 1.35 mol × 0.0821 atm.L/ mol.K× 320
P = 35.467 atm.L/ 2.50 L
P = 14.19 atm
Thus, option A is correct.
