Answer:
Explanation:
Using the following formula:
Q = m × c × ∆T
Where;
Q = quantity of heat (Joules)
m = mass (grams)
c = specific heat capacity (J/g°C)
∆T = change in temperature
Answer:
It shows the most reactive to least reactive, so that we can predict whether certain reactions will occur. Any metal can replace any metal below it, but not above it.
Explanation:
Answer:
Silver
Explanation:
What mass of copper was discharge at the cathode in a cell
True I believe because when the current circuit is at its limit it will be damaged
Answer:
10mL
Explanation:
Using the formula as follows:
CaVa = CbVb
Where;
Ca = concentration of acid, HBr (M)
Cb = concentration of base, Sr(OH)2 (M)
Va = volume of acid, HBr (Litres)
Vb = volume of base, Sr(OH)2 (Litres)
According to the information given in this question;
Ca = 0.24M
Cb = 0.24M
Va = ?
Vb = 10.0ml
Using CaVa = CbVb
0.24 × Va = 0.24 × 10
0.24Va = 2.4
Va = 2.4 ÷ 0.24
Va = 10mL
10mL of HBr is needed.