Models can represent systems
and processes. this is a true or false question...
Chemistry, 26.11.2020 01:00 sonyarucker
Models can represent systems
and processes. this is a true or false question
Answers: 2
Chemistry, 23.06.2019 01:00
Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.
Answers: 1
Chemistry, 23.06.2019 05:00
If 15 drops of ethanol from a medicine dropper weigh 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? density of ethanol is ethanol is 0.80g/ml.
Answers: 2
Chemistry, 23.06.2019 06:00
Give one example of a pure (exact) number and of an estimated (measured) number.
Answers: 2
Chemistry, 23.06.2019 08:50
What happens after sound waves create vibrations in the ear?
Answers: 1
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