Cem 141 chapter 1 atoms - Study guides, Class notes & Summaries

CEM 141 Chapter 1 Atoms Questions And Answers Rated A+ New Update Assured Satisfaction

CEM 141 CHAPTER 1 LEARNING OBJECTIVES WITH COMPLETE SOLUTIONS Stable systems form when? The attractive forces and the repulsive forces are equal. Claim, evidence and reasoning for the existence of negatively charged particles in an atom. Claim: Electron's are negatively charged particles of an atom. Evidence: JJ's cathode ray. Electron's were ejected from the cathode, regardless of what the cathode was made of. Reasoning: Electrons must be negatively charged because they acceler...

Cem 141 Chapter 3 Origin of Atoms Exam Questions| Already answered| GRADED A+ in an infinitely dense moment 13.8 billion years ago, the Universe is born from a singularity. - ANSWER- The Big Bang Theory true - ANSWER-If thermal energy is spreading out it will eventually cool a mysterious particle/force accelerates the expansion. - ANSWER-Inflation after 380,00 years; loose electrons cool enough to combine with protons. The Universe becomes transparent to light. The microwave background b...

can be a drawing or graph or a diagram or an equation, physical,mental -️️Scientific Model 1.Claim(the target of your explanation) 2.Evidence (the data or scientific principle you are using to support your claim) 3.Reasoning (how the evidence support the claim) -️️Constructing a Scientific Explanation the best available explanation of the existing evidence or data or observations -️️Scientific Theory A law describes the phenomenon(tells you what). A theory explains the phenomen...

can be a drawing or graph or a diagram or an equation, physical,mental - ANSWER-Scientific Model 1.Claim(the target of your explanation) 2.Evidence (the data or scientific principle you are using to support your claim) 3.Reasoning (how the evidence support the claim) - ANSWER-Constructing a Scientific Explanation the best available explanation of the existing evidence or data or observations - ANSWER-Scientific Theory A law describes the phenomenon(tells you what). A theory explains the ph...