Answer:
Explanation:
Lead (Pb) has 2 positive oxidation states, +4 and +2.
Sulfur (S) has 3 oxidation states: +6, +4, and -2. Since lead creates a positive ion, sulfur must be a negative ion to balance the charges.
There are 2 atoms of sulfur, each with a charge of -2. Therefore, their overall charge is -4, because 2* -2= -4.
A compound has a net charge of 0. To achieve this, lead must have a charge of +4 to balance out the -4 charge of sulfur.
Lead has a +4 ionic charge in PbS₂
Answer:
Gravity
because the earth which pulls any object towards it center and the velocity is achieved
Answer:
93.16 m = 0.09316 km = 9316 cm
Explanation:
Use a conversion factor to switch between units. There is 1 km / 1000 m and 100000 cm / 1 km
93.16 m x 1 km / 1000 m = 0.09316 km
0.09316 km x 100000 cm / 1 km = 9316 cm
Answer:
New experimental processes provide new scientific evidence
Explanation:
Thompson experimented on the cathode rays but Rutherford's experiment was more expanded and perfectly visualized. When Henri becquerel found the evidence of radioactivity Rutherford went on this experiment using alpha rays but what's interesting is if becquerel dint found any evidence about radioactivity Rutherford would never find about atomic particles. So the answer would be New experimental processes provide new scientific evidence.
Science changes everyday scientists find facts and in a snap other scientist proves that information is wrong. That 's how the science build up. It starts by trying things until its the right one.