Chemistry, 24.06.2019 00:30 jilliandantuma84
An old movie poster used a quote "in space, no one can hear you scream! " why this is true or not true? a) the quote is incorrect, you can hear sound in outer space. b) sound cannot be polarized. so, you cannot hear sound in space. c) sound is an electromagnetic wave and needs no medium to travel through. eliminate d) sound needs a medium for the wave to vibrate and there is nothing in space to vibrate
Answers: 1
Chemistry, 22.06.2019 16:00
If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml
Answers: 1
Chemistry, 23.06.2019 11:30
Distilled water is a completely neutral solution. what is its ph? a. 1 b. 7 c. 14 d. 0
Answers: 2
Chemistry, 23.06.2019 11:30
Place the following substances in order of ph from lowest ph to highest. a. neutral compounds, bases, acids b. acids, neutral compounds, bases c. bases, acids, neutral compounds d. bases, neutral compounds, acids
Answers: 1
Chemistry, 23.06.2019 11:30
A) equal lines b) parallel lines c) perpendicular lines d) none of the above
Answers: 1
An old movie poster used a quote "in space, no one can hear you scream! " why this is true or not tr...
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