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Questions in chemistry

📝 Answered - Which type of rock has sand, minerals, and shells?

📝 Answered - Which of the following is formed at a collision zone? A. Continental rift valley B. Volcanic island chain C. Mountain range D. Deep-ocean trench

📝 Answered - What are some important substances found in food that promote growth and good health?

📝 Answered - What is the effect of temperature and density on the movement of water?

📝 Answered - How many atoms are in 0.750 moles of zinc?

📝 Answered - What is a group of organisms that look alike and can reproduce among themselves?

📝 Answered - Which state of matter has the least amount of energy?

📝 Answered - How many moles are in 9.8 grams of calcium?

📝 Answered - How many atoms are there in [tex]1.3 \times 10^{22}[/tex] molecules of [tex]\text{NO}_2[/tex]?

📝 Answered - What happened to the number of moles in a sample that originally occupied 500 mL with 2.50 moles and then occupied 750 mL? Explain the changes using gas laws.