The percent composition of sulfer in SO2 is about 50%
Answer: 2= baby being developed= embryo 1 i dont know sorry
Explanation:
Answer:
2.73%
Explanation:
Molarity of NaOH = 0.75 M
Density of solution = 1.1 g/mL
Mass percent of NaOH = ?
Solution:
Number of moles of NaOH = 0.75 mol from 0.75 mol/L
Mass of NaOH = number of moles × molar mass
Mass of NaOH = 0.75 mol × 40 g/mol
Mass of NaOH = 30 g
Mass of solution:
d = m/v
1.1 g/ mL = m/ 1000 mL
m = 1100 g
Percentage of NaOH:
% NaOH = mass of solute / mass of solution × 100
% NaOH = 30 g/ 1100 g × 100
% NaOH = 2.73%
Answer:

Explanation:
Hello!
In this case, since one mole of ethanol release 8,842 J per 1 mole of ethanol, we can write:

Thus, since we need the energy released by 982.6 g of ethanol, we compute the moles in such mass of fuel:

Therefore, the result is:

Which in kJ is:

Best regards!
Answer:
False the electrons are on the outside of the atoms
Explanation: