Answers: 1
Chemistry, 22.06.2019 17:30
Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)
Answers: 2
Chemistry, 22.06.2019 19:00
Nan elementâs square on the periodic table, the number with the greatest numerical value represents the
Answers: 3
Chemistry, 23.06.2019 01:00
Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold
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
What is the rate constant of a reaction if rate = 1 x 10-2 (mol/L)/s, [A] is 2 M,
[B] is 3 M, m = 2...
History, 29.06.2019 19:00
Mathematics, 29.06.2019 19:00
Mathematics, 29.06.2019 19:00
Mathematics, 29.06.2019 19:00
Mathematics, 29.06.2019 19:00
History, 29.06.2019 19:00
Social Studies, 29.06.2019 19:00
English, 29.06.2019 19:00
Mathematics, 29.06.2019 19:00
Social Studies, 29.06.2019 19:00
Business, 29.06.2019 19:00
Mathematics, 29.06.2019 19:00