Why it is important to learn about elements, compound, and mixture?

0.74 Kcal/min to cal/sec Do step by step to lead to answer

Jamal is testing muscle strength in frogs. He thinks that their muscle strength will increase if more protein is added to the frogs' diet. To test this, he increases the protein in twenty frogs' diet. He leaves the other twenty frogs' diet as is.

An atom has 25 protons, 30 neutrons, and 25 electrons. What is the charge of the nucleus?

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Is cloud seeding a physical or chemical change

Consider the compounds 4-tert-butylcyclohexanol and 4-tert-butylcyclohexanone. using silica gel plates, which of the two compounds will have the higher rf value when ethyl acetate is the developing solvent?

Which model of election configuration is the most accurate? The quantum mechanical atomic model The Rutherford atomic model The Bohr atomic model O Plum pudding atomic model The quantum gravity atomic model

How is the rate of appearance of h2o related to the rate of disappearance of o2?

Occurs when the moon moves between the Earth and Sun and blocks the light

Why have some chemicals been banned from usage in agriculture/food production