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PHYSICAL SCIENCE EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED BY EXPERT GRADED A+ R157,07   Add to cart
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PHYSICAL SCIENCE EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED BY EXPERT GRADED A+
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PHYSICAL SCIENCE EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED BY EXPERT GRADED A+ Which best compares and contrasts how John Newlands and Dmitri Mendeleev organized elements? Both Newlands and Mendeleev arranged elements according to their atomic masses, but only Mendeleev used chemical prop...

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  • May 10, 2024
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  • 2023/2024
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PHYSICAL SCIENCE EXAM QUESTIONS WITH COMPLETE SOLUTIONS

VERIFIED BY EXPERT GRADED A+


Which best compares and contrasts how John Newlands and Dmitri Mendeleev

organized elements?

Both Newlands and Mendeleev arranged elements according to their atomic masses,

but only Mendeleev used chemical properties as well.

An atom of carbon (C) forms covalent bonds with two atoms of oxygen (O) to

form carbon dioxide. How are the valence electrons of these atoms rearranged to

form the bonds?

An atom of carbon (C) forms covalent bonds with two atoms

of oxygen (O) to form carbon dioxide. The valence electrons of these atoms

rearranged to form the bonds when Electrons are transferred from the carbon

atom to the oxygen atoms. The answer is letter A. NOT C The valence electrons of

Carbon are shared equally with the 2 atoms of Oxygen to form a covalent bond

Hsaio manages the finances for her company and has a particularly large amount

of money budgeted for the purchase of calcium chloride, or CaCl2. Which type of

company does Hsaio most likely own?

A

, Alai is comparing the physical property of two materials. He is hitting each with a

hammer to observe what happens. What physical property of the materials is Alai

most likely observing?

Alai is most likely observing the hardness of the materials.

This chart lists four elements from the periodic table.



Atoms from which two elements would form ionic bonds?



a.calcium and gold

b.gold and argon

c.argon and iodine

d.iodine and calcium

D

Rounded to the nearest whole number, what is the atomic mass of platinum?

195

Which describes a value for density?

B

Which elements are halogens? Check all that apply.

CHLORINE AND IODINE

A log has a density of .8 g/cm³. This log will in freshwater, which has a density of

1.0 g/cm³ .

The log will float because it is less dense

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