Answer:
platinum-189 symbol is PT
They will be stay the same all the way through. your product must be the same mass
Homogeneous mixture because it contains the same properties as homogeneous
Answer:
explanation and image attached
Explanation:
Our aim is to draw a structure of XeO2F2 whith the least formal charges. We must remember that the compound has 34 valence electrons.
To obtain the least formal charges then Xe must have a total of twelve electrons on its valence shell instead of eight.
The other atoms around the central Xe atom are arranged as shown in the image attached.
Image Credit: UCLA
Answer:
ok
Explanation:
this is a picture of a city that we have made worse everyday