Answer: I Think It's D) The change of solubility with temperature is the same for all substances.
Answer:
19.28 g/cm^3 to the nearest hundredth.
Explanation:
The volume of water displaced = the volume of the metal.
density = mass / volume
0.0694 kg = 0.0694 * 1000
= 69.4 g.
Density = 69.4 / 3.6
= 19.28 g/cm^3.
When a gamma ray is emitted from the nucleus of an atom it reduces the overall energy of the nucleus. Emission of gamma rays almost happens along with beta and alpha emissions. After the two emissions, the nucleus of the atom would still be in an excited state. To achieve stability, gamma rays are emitted which will decrease the overall energy of the nucleus.
Answer:
Explanation:
There are empirical formula calculators on the search engine that starts with G (This word is blocked by Brainly) and if you really need to use it, there's an option you can choose. However, I will try to explain this.
C = 65.4
H = 5.5
O = 29.1
We first need to divide the percentages by their molar mass.
65.4/12.01 = 5.44
5.5/1.008 = 5.46
29.1/16 = 1.8
We then need to divide these numbers by the smallest number we obtained.
1.8 is smaller than 5.46 and 5.46, so we would divide all three numbers with 1.8.
5.44/1.8 = 3
5.46/1.8 = 3
1.8/1.8 = 1
This means that there are 3 atoms of C and H and 1 atom of O, giving us the empirical formula of .
Answer:
Explanation:
The charges are as follows:
since oxidation number of lead is 2 as indicated lead (II)nitrite. The number in parentheses indicates the oxidation number.
bears the charge -1.
As lead bears 2 positive charges so we need two nitrite ions to form lead (II) nitrite.
, it is a halogen and bears the charge -1.
, it is an alkali metal.
Since Bromide bears -1 charge and potassium bears +1 charge so we need only 1 ion of bromide and 1 ion of potassium to form potassium bromide.
Similarly, to form lead bromide we need 2 ions of bromide and 1 ion of lead, and to form potassium nitrite we need 1 nitrite ion and 1 potassium ion.
The final balanced equation is as follows, the various states of reactants and products are also written properly.