Answer:
B)As you go from left to right, reactivity of metals increases. As you go down in a group, reactivity of metals decreases.
Explanation:
reactivity of metals can be explained as how it can easily lose electron, i.e oxidize as well as reaction with non-metals.
There are factors that influence the reactivity of metals such as
1)atomic radius
2)nuclear charge
3)shielding effect
4) The sublevel arrangement of electrons
In the periodic table,the group 1, known as alkali metals, are the most reactive metals
Therefore, as we from left to right, reactivity of metals increases. As we move down in a group, reactivity of metals decreases.
Divide mass by density to determine volume. 115.384 cm^3 (unsure if you need to round.)
Ice cream will have a physical change because you can re freeze it and it will still be ice cream
Answer:
[
]minimum=1.42*
M
Explanation:
Precipitate occurs only when the ionic product is greater than the solubility product.
I.e. Kip>Ksp
And from above equation it is clearly that the minimum value of Kip is equal to Ksp
(aq) = 
(aq)+
(aq);
Ksp=[][];
Hence Kip=Ksp; minimum value of Kip is equal to Ksp and this will give the minimum concentration of SO4-2 to precipitate the 0.050 M solution of Ca2+
Kip = [][] = Ksp=7.10 × 10-5
[] =Ksp/[] ;
[]=(7.10 × 10-5)/0.050;
[]minimum=1.42* M
