Answer:
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Explanation:
We arrange oxoacids to decrease the intensity of acids in this question. Or we may conclude all this from strongest to weakest acids they order oxoacids, that's why above given order is correct.
The chemical formula for cesium oxide is Cs2O. What is the charge of cesium?
2 answers:
Answer : The charge of cesium is, (+1)
Explanation :
Oxidation state or number : Oxidation state represent the number of electrons gained or lost by the atoms of an element in the compound. That means it also tells us about the charge present on the cation and the anion.
Oxidation state or number are generally written with the sign (+) and (-) first and then the magnitude.
When the atoms are present in their elemental state then the oxidation number will be zero.
Oxidation number of oxygen (O) in compounds is usually equal to (-2).
The given chemical formula of cesium oxide is,
Let the oxidation state of 'Cs' be, 'x'
Therefore, the charge of cesium is, (+1)
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Answer: (C) conservation of matter
Solution: Law of conservation of matter or mass states that' total mass of the reactants should always be equal to the total mass of the product that is the total mass is remained conserved in a chemical reaction.
A balanced chemical equation always follow this law.
For example:
Mass of hydrogen = 1 g/mol
Mass of Oxygen = 16 g/mol
Total mass on the reactants = 2(2×1)+(2×16)= 36g/mol
Total mass on the product side = 2[(2×1) +16] = 36 g/mol
As,
Mass on reactant side = Mass on the product side
Therefore, a balanced chemical reaction follows Law of Conservation of mass.
Answer:
these two would help you
Explanation:
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