MULTIPLE CHOICE: Circle and/or fill-in the answer(s) that best completes the sentence. 1. The substance that dissolves to make a solution is called the _____ A. diffuser B. solvent C. solute D. concentrate 2. During diffusion molecules tend to move _____ A. up / against the concentration gradient
Elements, Compounds, and Mixtures Worksheet. This is a simple instructional worksheet that uses drawings to contrast atoms and molecules, as well as elements, compounds, and mixtures. Essential Concepts: Elements, compounds, mixtures, atoms, molecules, pure substance. Answer key: Included in the chemistry instructor resources subscription.
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Reading comprehension online worksheet for Grade 5. You can do the exercises online or download the worksheet as pdf. What do you want to do? Check my answers. Enter your full name: Group/level: School subject: Enter your teacher's email or key code
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Mole Calculation Worksheet – Answer Key What are the molecular weights of the following compounds? 1) NaOH 23 + 16 + 1 = 40.1 grams 2) H 3PO 4 3 + 31 + 64 = 98.0 grams 3) H 2O 2 + 16 = 18.0 grams 4) Mn 2Se 7 663.0 grams 5) MgCl 2 95.3 grams 6) (NH 4) 2SO 4 132.1 grams Solve any 15 of the following: 1) How many moles are in 15 grams of lithium ...