Describe the three types of skin cancer in a short sentences

There are three main types of skin cancer. The most serious is melanoma. Our skin is made up of cells: basal cells, squamous cells and melanocytes. The different types of skin cancer are named for the skin cell where the cancer develops: basal cell carcinoma, squamous cell carcinoma and melanoma.

Explanation:

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Explanation:

Basal cell carcinomas occur most frequently on exposed parts of the body, including the face, ears, neck, scalp, shoulders and back.

Squamous cell carcinomas often arise from small, sandpaper-like growths called actinic keratoses. They may appear as nodules or red, scaly patches of skin.

Melanoma may suddenly appear without warning, but it may also begin in, or near a mole, or another dark spot in the skin. Excessive sun exposure, particularly sunburn, is thought to be the most important cause of melanoma.

a graduated cylinder.

explanation:

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"