Chemistry, 10.07.2019 02:30 zacharysharpe2805
Acertain alcohol contains only three elements, carbon, hydrogen, and oxygen. combustion of a 20.00 gram sample of the alcohol produced 38.20 grams of co2 and 23.48 grams of h2o. what is the empirical formula of the alcohol?
Answers: 1
Chemistry, 21.06.2019 15:00
Which one of the following gases is not an important component of soil?
Answers: 2
Chemistry, 22.06.2019 03:00
Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture
Answers: 1
Chemistry, 22.06.2019 21:30
An atomic nucleus is composed ofa)protons.b)protons and neutrons.c)protons and electrons.d)protons, neutrons, and electrons.
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Chemistry, 23.06.2019 03:30
Scientists often 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 × 10-4 millimeters. express each of these numbers in an alternate form.
Answers: 3
Acertain alcohol contains only three elements, carbon, hydrogen, and oxygen. combustion of a 20.00 g...
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