Chemistry, 23.10.2021 04:00 taniyahreggienae
(03.03 MC)
The Lewis dot model of a molecule is shown.
Based on the model, which of the following is true? (5 points)
The electronegativity difference between phosphorous and chlorine is greater than 1.7.
Each chlorine has three non-bonded pairs and one bonded pair of electrons.
Phosphorous has three non-bonded pairs and one bonded pair of electrons.
Phosphorous has three valence electrons in the outermost energy level.
Answers: 2
Chemistry, 21.06.2019 16:30
What is a scientific theory? a. a scientist's guess about how something works b. the results of an experiment obtained using the scientific method c. a proven fact that will never change d. an idea that is backed by data from many sources
Answers: 2
Chemistry, 21.06.2019 23:10
Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.
Answers: 1
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
(03.03 MC)
The Lewis dot model of a molecule is shown.
Based on the model, which of th...
Based on the model, which of th...
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