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Chemistry, 23.06.2019 15:50
Astable atom that has a large nucleus most likely contains 1. more neutrons than protons. 2.more protons than neutrons. 3.equal numbers of protons and neutrons. 4.changing numbers of protons and neutrons.
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Chemistry, 23.06.2019 16:50
Consider the balanced equation below. pcl3+cl2-> pcl5 what is the mole ratio of pcl3 to pcl5
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Chemistry, 23.06.2019 18:00
Which of the following hydrocarbons will most likely be found around cows? a. ethane b. methane c. octane d. decane
Answers: 2
Cho hai điện tích q1 = 2.10-6 C, q2 = 4. 10-6C, đặt tại A và B trong không khí biết AB = 2 cm. Xác đ...
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