Answer:
Both water and ethanol are polar and due to miscibility, Ethanol has OH groups capable of forming hydrogen bonds with the water molecule. Hydrogen bonds are formed when the oxygen attached to the alcohols form hydrogen bonds between the molecules and water. This explains the solubility of methanol.
Explanation:
Answer:
Where are all my chemistry geniuses at??
1. 2HG + O2 = 2HGO
2. Ca + 2H2O = Ca(OH)2 + H2
3. H2 + Cl2 = 2HCl
4. Fe + S = FeS
Explanation:
Hope it helped!
Answer:
4770 grams of sodium carbonate
Explanation:
The reaction that takes place between sodium carbonate and sulfuric acid is:
- Na₂CO₃ (s) + H₂SO₄ (aq) → Na₂SO₄ (aq) + CO₂(g) + H₂O (l)
First we <u>calculate how many H₂SO₄ moles reacted</u>, using the <em>given concentration and volume of solution</em>:
moles = Molarity * Liters
- moles = 18.0 M * 2.50 L = 45 mol H₂SO₄
Then we <u>convert H₂SO₄ moles into NaCO₂ moles</u>, using the <em>stoichiometric coefficients</em>:
- 45 mol H₂SO₄ * = 45 mol NaCO₂
Finally we <u>convert 45 NaCO₂ moles into grams</u>, using its <em>molar mass</em>:
- 45 mol NaCO₂ * 106 g/mol = 4770 g
Chemical reactions can be identified when there is a change in color, energy is produced, change in odor, or if new substance forms.
Answer:
The second option
Explanation:
The process of elimiation.
1. We know liquids dont have a definite shape, they will morph into whatever enviroment theyre in
3. Solids dont expand based on what container theyre in, they either dont fit or they do
4. We know that liquid expands, so we can also rule this one out.
Which leaves us with option 2 to be correct.