question 10 of 10 moji listed the solids in order of hardness as graphite < chalk < quartz. his peer group…

question 10 of 10 moji listed the solids in order of hardness as graphite < chalk < quartz. his peer group suggested some experimental errors that may have caused this to happen. which experimental error most likely led moji to this conclusion? a. moji could have chosen hardness tests that were not reliable. b. moji might have used color as an indication of hardness. c. moji might have thought that crumbliness was a sign of hardness. d. moji might have thought that crumbliness was a sign of softness.

question 10 of 10 moji listed the solids in order of hardness as graphite < chalk < quartz. his peer group suggested some experimental errors that may have caused this to happen. which experimental error most likely led moji to this conclusion? a. moji could have chosen hardness tests that were not reliable. b. moji might have used color as an indication of hardness. c. moji might have thought that crumbliness was a sign of hardness. d. moji might have thought that crumbliness was a sign of softness.

Answer

Brief Explanations:

Hardness is a measure of a material's resistance to deformation. Using unreliable tests can lead to incorrect conclusions about the hardness order of materials. Color is not related to hardness, and misinterpreting crumbliness as a sign of softness would not lead to the wrong hardness - order conclusion as stated. Thinking crumbliness is a sign of hardness would be an incorrect concept but not as likely as using unreliable tests.

Answer:

A. Moji could have chosen hardness tests that were not reliable.