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Ch.2_atomic weight, moles, periodic table

Authored by Badrinath Dhakal

Chemistry

University

Used 3+ times

Ch.2_atomic weight, moles, periodic table
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10 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Anika, Aria, and Priya are working on a chemistry project about different elements. They are currently researching about mercury (Hg). Can you help them find out the atomic weight of mercury?

197.59

198.56

200.59

188.27

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

James, Zoe, and Elijah are in a chemistry class. Their teacher asks them to find the atomic weight of iron for a class project. What is the atomic weight they should report?

58.58

55.85

57.58

56.85

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Sophia and Daniel are studying for their chemistry exam. They come across a question about naturally occurring carbon, which is composed of 98.93% 12C and 1.07% 13C. The masses of these isotopes are 12.00000 amu and 13.00335 amu, respectively. Abigail, who is good at chemistry, asks them, 'What is the atomic weight of carbon?'

12.01 amu

13.00 amu

1 amu

12.01 g

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

5.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

Henry, Aiden, and Anika are studying for their chemistry exam. They come across a question about naturally occurring chlorine. They find out that it is 75.78% 35Cl (atomic mass 34.969 amu) and 24.22% 37Cl (atomic mass 36.966 amu). They are trying to figure out the atomic weight of chlorine. Can you help them?

34.97 amu

35.45 amu

37.00 amu

35.00 amu

6.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Maya, Grace, and Aiden are working on a chemistry project about the periodic table. They are specifically interested in chlorine. Can you help them identify in which period and in which group of the periodic table is chlorine located?

group 7A

period 2

group 7A

period 3

group 8A

period 3

group 6A

period 3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Scarlett, Anika, and Nora are studying for their chemistry exam. They come across a question that asks, 'Which two of these elements would you expect to show the greatest similarity in chemical and physical properties: B, Ca, F, He, Mg, P?' They are confused and turn to you for help. What would your answer be?

He and Ca

F and P

B and Ca

Ca and Mg

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