Answer:
Deep inside Earth, between the molten iron core and the thin crust at the surface, there is a solid body of rock called the mantle. When rock from the mantle melts, moves to the surface through the crust, and releases pent-up gases, volcanoes erupt.
Explanation: hot molten rock, ash, and gases escape from the volcano
Answer: The theoretical yield of potassium chloride is 0.596 grams and the % Yield of potassium chloride is 83.9%
Explanation:
To calculate the moles :
According to stoichiometry :
2 moles of produce= 2 moles of
Thus 0.008 moles of will produce= of
Theoretical yield of
% yield =
The theoretical yield of potassium chloride is 0.596 grams and the % Yield of potassium chloride is 83.9%
Answer:
C. involve the attraction of opposite charges
Explanation:
<em>Ionic bonding</em> involves the attraction between <em>oppositely charged ions</em>, as in Na⁺ Cl⁻.
<em>Covalent bonding</em> involves the attraction between <em>negatively charged electrons and positivey charged nuclei</em>, as in a C-H bond.
A is <em>wrong</em>. Ionic bonding involves the transfer of electrons.
B is <em>wrong</em>. Covalent bonding involves the sharing of electrons.
D is <em>wrong</em>. Ionic bonds are usually stronger than covalent bonds.
Answer:
Molarity NaOH = 0.0263M
Explanation:
Molarity Acid x Volume Acid = Molarity Base x Volume Base
12.5ml x 0.60M = 285ml x M(base)
M(base) = 12.5ml x 0.60M / 285ml = 0.0263M
The best answer among the following choices would be the fourth option D).