The pictures below show water in a glass and oil in a beaker. (4 points) image of a glass of water and of oil Which of these statements is correct about water and oil? Both water and oil are minerals because they are natural materials with a definite chemical composition. Water is a mineral because it has a definite chemical composition but oil is not a mineral because it is organic. Both water and oil are not minerals because they are liquids. Water is not a mineral because it is a liquid but oil is a mineral because it is formed under the ground by natural processes.

"the periodic table is arranged in order of atomic number."

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary