Answer:
The water is under pressure naturally and no pump is needed.
Explanation:
C
Answer:
Final temperature of water is 83.8°C
Explanation:
In 500.0mL of a 6.00M NaOH solution, there are:
0.5000L × (6.00mol NaOH/ L) = <em>3.00moles of NaOH</em>
As the heat involved in dissolution is 44.5 kJ/mol, when the solution is dissolved:
44.5kJ/mol × 3.00moles = 133.5kJ = 133500J
Using coffee-cup calorimeter equation:
q = m×C×ΔT
<em>Where q is heat, m is mass of water (500.0g), C is specific heat of water (4.186J/g°C) and ΔT is change in temperature</em>
<em />
133500J = 500.0g×4.186J/g°C×(X-20.0°C)
63.8 = (X-20.0°C)
83.8°C = X
<em>Final temperature of water is 83.8°C</em>
Answer:
A cation.
Explanation:
When an electron is liberated, that means it is removed from the atom.
When an electron is lost, the atom is ionized, and becomes a cation.
It becomes a cation because it loses one negative charge, and therefore become positively charged.
Answer:
A change in a substance where one or more new substances form
Explanation:
