Answer:
4.816x10²⁴atoms
Explanation:
the number of moles of oxygen is 8
let x be number of oxygen atoms
recall that 1 mole=6.02x10^23 atoms
therefore, 8 moles =x
cross multiply
8 x 6.02 x 10^23 = x
x = 4.816 x 10²⁴atoms
Answer:
the physical property of an object or matter
Oh wow there could be so many but if you take any ionic compound that is aqueous, I’m sure it would work? Aqueous is a solid that is dissolved in water by the way. So I mean, that would technically create a liquid solution.
Sorry I couldn’t be a better help.. I probably didn’t explain that very well either but I hope that kinda gives you an idea of an option. :\
Answer:
This is an exothermic reaction
q = 563 kJ
Explanation:
Step 1: The balanced thermochemical equation
H2CO(g) + O2(g) → CO2(g) + H2O(l) ΔH = -563 kJ
This is a combustion, this means there will be released heat. This means it's an exothermic reaction.
The energy involved, will be released (that's why ΔH is negative)
q has the same value as ΔH (but positive)
q = 563 kJ
14: All you need to do is find the 1/8 mark on the bone at 0 years. Find the bar that looks like it is equal to that 1/8 mark. It’s the bar right before 20. From the choices, the best estimate is d. 17,100.
15: The dependent variable is the amount of dissolved gases. This is because the amount of dissolved gasses is <em>dependent </em>on the air pressure (which would be the independent variable).
