Calcium is in group IIA in the periodic table. A Ca ion has a charge of 2+. In order to solve this problem you can either see the periodic table or just look for the charge of the elemetns they give you.
K is group IA - charge of 2+
Magnesium IIA - charge 2+
Bromine VIIA charge of 1-
Scandium IB
The answer is B
Answer:
an intrinsic characteristic of a particular acid, not related to concentration
Explanation:
this is easy
In the atom model, the poppy seeds are placed in different places to represent the different position of electrons.
Weather satellites and Doppler radar, helps the process of looking over a large area, an does the network of weather observations.
Answer:
2 ?
Explanation:
(Molar mass of S2Cl2 = 135.036 g/mol)
Eq. wt. of S in S2
Cl
2
= 2×35.5
2×32×35.5 =32g
Eq. wt. of S in SCl
2 =
2×35.5
32×35.5 =16g
So, their ratio is 2.