What's Rutherford atomic model? Rutherford's atomic model consists of a nucleus. This nucleus contains positively charged particles (pluses) called protons. Years later, a second particle, called the …
What’s Thomson’s atomic theory and what questions did critics ask about his theory?
What's Thomson's atomic theory? To determine whether atoms really consist of other particles, a scientist called J. J. Thomson carried out the now famous cathode-ray tube experiment from which he …
What’s Dalton’s atomic theory and what questions did critics ask about his theory?
What’s Dalton’s Atomic theory? Dalton's atomic theory consists of a series of suggestions called postulates. These postulates are: All elements consist of small independent, indestructible and …
Hard water: what is it, what causes it, and how can it be removed?
Hard water: what is it, what causes it, and how can it be removed? Hard water is water rich in dissolved calcium (Ca), with some iron (Fe), and magnesium (mg) ions as well. Bare calcium ions cannot …
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How acidic or basic is an aqueous solution?
How acidic or basic is an aqueous solution? Since neutral water contains an equal number of hydroxide and hydronium ions, we can determine how acidic or basic a solution is by comparing its hydronium …
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What’s the concentration of water molecules in water?
What’s the concentration of water molecules in water? Pure water has a concentration of 55.6 M. Meaning there are 55.6 moles of water …
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