Added on wood, gasoline, wind
Answer:
Option D
Explanation:
A solution is neutral if it contains equal concentrations of hydronium and hydroxide ions; acidic if it contains a greater concentration of hydronium ions than hydroxide ions; and basic if it contains a lesser concentration of hydronium ions than hydroxide ions.
A common means of expressing quantities, the values of which may span many orders of magnitude, is to use a logarithmic scale.
The hydroxide ion molarity may be expressed as a p-function, or pOH.
pOH = −log[OH−]
Basic solutions are those with hydronium ion molarities less than 1.0 × 10−7 M and hydroxide ion molarities greater than 1.0 × 10−7 M (corresponding to pH values greater than 7.00 and pOH values less than 7.00).
Answer:
The number of collisions of gas particles increases.
Stoichiometry!
You'll have to take the 175g of Na and convert it to moles if you want to turn this amount into atoms. Thus, you will have to divide 175g by the molar mass of Na that can be found on the periodic table, which can be rounded to 22.99g. That should give you 7.61 mols. However, since the question is asking for atoms, you'll have to bring in Avogadro's number of 6.022*10^23.
So by taking the 7.61 mols, you'll have to multiply that by 6.022*10^23 in order to get 4.58*10^24 atoms which is B.
A simplified version of all that ^ is:
175g (6.022*10^23) / 22.99g = 4.58*10^24.
