The ions in the unknown salt are:
and 
The chemical formula of the salt is determined as shown in the picture.
The chemical formula of the salt is 
.
Answer:
have the same number of protons
Explanation:
The number of protons in an atom determine what element it is. The number of electrons and neutrons can vary from atom to atom of the element, as long as all the atoms have the same number of protons.
Fe2O3 + 2Al => Al2O3 + 2Fe↓
reaction of changing.
In this type of reaction one element or group of elements from one substance is changed with a single element.
Answer: Half of each hemisphere is lit, and the sunlight is centered on the equator. ... Earth's axis still points in the same direction, but now the North Pole seems to lean toward the Sun and is in sunlight. The June solstice marks the beginning of summer in the Northern hemisphere
Answer:
the first and second one are both already balanced but the third one is
Caco3->Cao+Co2
