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3 years ago

8

which of these chemical formulas represents two elements whose atoms have joined together with an ionic bond? A. O2 B. CaO C.NeN

e D.MgCa

1 answer:

cupoosta [38]3 years ago

3 0

B: CaO
Because Calcium is a Metal and Oxygen is a Non-Metal. Ionic bonds are only formed with a Metal and a Non-Metal element.

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Significant digits show the precision of measurements and calculations

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Calculate the rate of loss of heat through a glass window of area 200 CM square and thickness 0.5 CM where temperature inside is

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If the value of static friction for a couch is 400N, what could be a possible value of its kinetic friction? *

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Answer:

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4 years ago

Consider two sizes of disk, both of mass M. One size of disk has radius R; the other has radius 4R. System A consists of two of

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Answer:

4 smaller disks

Explanation:

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I = ½MR²

Thus;

For small disk, I_small = ½MR²

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So;

4MR² = MR²(2 + n/2)

MR² will cancel out to give;

4 = 2 + n/2

Multiply through by 2 to give;

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