The 41 beside the chemical symbol of calcium signifies the mass number of the isotope which would be 41. It would be equal to the sum of the number of protons and neutrons in the atom. the number of proton is equal to every isotope calcium has which is 20. therefore the number of neutrons would be 21. since it is being states the atom is neutral, the number of electrons would be equal to protons which is 20.
Answer:
2.475 mol of O2 formed.
Explanation:
Given 1.65 moles of KClO3 as the target amount in the reactant, used the coefficient of the balanced chemical reaction involved to determine the number of moles of O2 molecules formed.
x mole of O2 = 1.65 mol KClO3 x [(3 mol O2)/ (2 mol KClO3)] = 2.475 mol of O2
x mole of O2 formed = 2.475 mol of O2
Answer:
<em>Red blood cells do not have a nucleus on maturity. WBCs are characterized by the presence of a large central nucleus. Due to the presence of haemoglobin, these cells appear red in colour. These cells are colourless, as they do not have any pigment.</em>
Explanation:
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Molal or molar? There is a difference
Answer b, cellular and photosynthesis are reversible