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How many valence electron does Y have based on the Lewis Dot structure below?

Use these conversion factors for the following question:  0.750 san = 3.00 tre 5.00 mix = 2.00 tre 0.900 san = 3.60 ang

Based on the following hypothetical Lewis structure given X has 6 valence electron and Z has 4 valence electrons, what is the formal charge of on the second X?  

Determine which of the following statements is/are true based on the figures below.  Sample A is a pure substance composed of an atomic element Sample B is a mixture composed of molecular elements Sample C is a mixture composed of compounds

What is the electron geometry and molecular geometry for the following molecules?    Molecule A has an Electron Geometry of [EGA] and a Molecular Geometry of [MGA] Molecule B has an Electron Geometry of [EGB] and a Molecular Geometry of [MGB] Molecule C has an Electron Geometry of [EGC] and a Molecular Geometry of [MGC]

What is the limiting reagent, excess reagent, and theoretical yield for the following reaction if the starting amount of X2 and Y2 are provided in the image labeled starting amounts before reaction below?

Present Progressive El escenario: Estás en una clase ahora.  ¿Qué estás haciendo? Describe what you are doing at the moment. Include 3 sentences. Remember to respond using the present progressive tense in Spanish. 

Which of the following has a larger atomic radius? P S Because… the valence electrons are further from the nucleus the valence electrons experience a lower effective nuclear charge the valence electron experiences a higher effective nuclear charge the atom has more total electrons

TIME ¿Qué hora es?  Please write your answer in Spanish (for example “It is 7:30 in the evening”–but in Spanish). 1. 2:15pm 2. 10:30pm 3. 7:00am

Using the conversion factors from the previous question determine how many mix will be formed from 37.5 ang?