Which of the following apply to the property of hardness. Select all that apply.
2 answers:
The correct statements are:
Hardness is a physical property.
Friedrich Mohs developed the standard hardness scale.
Diamond can scratch quartz.
I’m figuring this one out right now
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Answer:
180 miles
Explanation:
60 × 3 = 180
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The answer is 32 electrons.
NaHCO3 is the right answer
radio waves
infrared radiation
visible light
ultraviolet radiation
X-rays
gamma rays
Answer:
four atoms of oxygen
Explanation:
two atoms of hydrogen
one sulphur atom
