Chemistry, 16.09.2019 07:00 dtrdtrdtrdtrdrt3415
Combustion analysis of an unknown compound provides the following data: 98.28 grams carbon (c), 16.21 grams hydrogen (h), and 65.52 grams oxygen (o). what is the percent composition of carbon in this compound? 6.06% c 54.6% c 33.3% c 36.4% c
Answers: 1
Chemistry, 22.06.2019 02:40
Consider the nuclear equation below. 239/94 puโ-> x+ 4/2 he. what is x?
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Chemistry, 22.06.2019 10:30
Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space
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Chemistry, 22.06.2019 22:00
Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 ร 10-4 millimeters. express each number in an alternate form.
Answers: 1
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
Combustion analysis of an unknown compound provides the following data: 98.28 grams carbon (c), 16....
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