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Questions in chemistry

[Free] What is the effect of temperature and density on the movement of water?

[Free] How many atoms are in 0.750 moles of zinc?

[Free] What is a group of organisms that look alike and can reproduce among themselves?

[Free] Which state of matter has the least amount of energy?

[Free] How many moles are in 9.8 grams of calcium?

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

[Free] 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.

[Free] How do you find the volume occupied by 454 grams of copper if the density is 8.92 g/mL?

[Free] What is the reaction if you mix vinegar, Ajax, and bleach together?

[Free] Complete the equation: Fe + HOH = ?