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Atomic Weights - Chemistry Questions asked by Filo students

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SO_{4} \cdot 5 H_{2} O

CuSO_{4} O

में कुल परमाणुओं की संख्या है: यौगिक

CuSO_{4} .5 Ii_{2} O

में c. 5 d. 8 a 27 number of ions present in

111 gm

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Atomic Weights

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Which among the following is correct for the current in a series circuit? It splits in each component. It is the same everywhere. It increases or decreases as you go around the circuit. It is the greatest near the battery.

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Atomic Weights

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of neutron is tripled and mass of electron is douoled the calculate

%

change in lts atomic weight Q If in

0 - 16

mass of Proton is doubled, mass of neutron is made

\frac{1}{4}

and mass of electron remoin unchanged then calc. the \% change. Q If in

N - 14

atom mass attributed to electron

14 \cdot 15

thule alfributel to proton is halved then calc

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Atomic Weights

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Question 5 Points 3 Molybdenum (Mo) is a transition metal and forms more than one type of cation. Which of the following pairs of molybdenum compounds shows the oxidation state of +4 for molybdenum?

MoO_{3}

Mo (ClO_{3})_{4}

Mo (NO_{3})_{2}

MoO_{3}

Mo (ClO_{3})_{4}

MoS_{2}

MoS_{2}

Mo (NO_{3})_{2}

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Atomic Weights

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What are the 5 steps of the scientific method?

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Atomic Weights

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O_{2}

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Atomic Weights

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The relative atomic mass of hydrogen ar how to calculate

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Atomic Weights

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How to calculate relative atomic mass of Hydrogen?

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Atomic Weights

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Calculate the molecular mass of NaOH

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Atomic Weights

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Question 10

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The equation for the reaction between calcium carbonate and dilute nitric acid is shown.

C a C O_{3} (s) + 2 H N O_{3} (a q) \to C a (N O_{3})_{2} (a q) + C O_{2} (g) + H_{2} O (l)

25 g of calcium carbonate is reacted with an excess of dilute nitric acid.
Which mass of calcium nitrate and which volume of carbon dioxide is produced at room temperature and pressure?

Topic:

Atomic Weights

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Question 11

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What is the weight of an electron.

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Atomic Weights

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