Answer is: A) Sr (strontium).
The reactivity series<span> is a series of metals from highest to lowest reactivity.</span><span> Metal higher in the reactivity series will displace another.
</span>Strontium is only higher in this group from magnesium. Strontium is stronger reducing agent than magnesium, gives electrons easier.
Answer:
0.260 Celsius
Explanation:
q =c x m x (T2-T1)
c - specific heat of water 4.186 J/g.C
T2-T1 = q /(c x m) = 0.959 /(4.186 x 0.88) = 0.959/3.68 =0.260 C
It can be predicted from the location on the periodic table.
Answer:
The town should find a new source of water.
Explanation:
Step 1: Convert the mass of copper to milligrams
We will use the conversion factor 1 g = 1000 mg.
0.002 g × (1000 mg/1 g) = 2 mg
Step 2: Convert the mass of solution to kilograms
We will use the conversion factor 1 kg = 1000 g.
1000 g × (1 kg/1000 g) = 1 kg
Step 3: Calculate the concentration of Cu in ppm (mg/kg)
2 mg/1 kg = 2 ppm
This is over 1.3 ppm, so the town should find a new source of water.
