can someone help with chemistry stuff 2 Most elements can be found in nature in

Question

can someone help with chemistry stuff 2

Most elements can be found in nature in their pure (i.e. not combined with other elements to make a compound) from. Scientists predict that more naturally occurring elements will be discovered in the future. There are total atoms present in one unit of KMnO_4 (potassium permanganate). There are oxygen atoms and aluminum atoms present in one unit of Al_2(SO_3)_3 (aluminum sulfite). There are phosphate polyatomic ions in one unit of Ba_3 (PO_4)_2 (barium phosphate) The molecule is the smallest unit of a compound that can exist and still retain all of the properties of that compound. Both compounds and elements can have variable composition. The last naturally occurring element to be discovered (Fr) was discovered in the year

Explanation / Answer

52) FALSE, normally, you will find compounds, molecules or substance that are essentially elements linked to another elemnts. Pure elemtns are rare, but there are some in earth.

53)

FALSE, natural elements are already detected. All other elements are synthetic or produced and do not last longer due to inestability

54)

Unit --> 1 molecules KMnO4, there are 1K + 1 Mn + 4 O = 1+1+4 = 6 atoms in the molecule

55)

3*3 = 9 oxygen atoms

2*1 = 2 aluminium atoms

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