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Questions in chemistry

[Answered] If I add water to 100 mL of a 0.15 M NaOH solution until the final volume is 150 mL, what will the molarity of the diluted solution be?

[Answered] How much 0.05 M HCl solution can be made by diluting 250 mL of 10 M HCl?

[Answered] After burning for three hours, a candle has lost half of its mass. Explain why this example does not violate the law of conservation of mass.

[Answered] What is the molality of a solution in which 3.0 moles of NaCl are dissolved in 1.5 kg of water?

[Answered] What is the secondary consumer in the Gulf of Mexico?

[Answered] What is a beaker? Can you also post a picture of what it looks like for me?

[Answered] The molar heat of fusion of gold is 12.550 kJ/mol. At its melting point, how much mass of melted gold must solidify to release 235.0 kJ of energy?

[Answered] How does a magnet separate mixtures?

[Answered] Which of the following statements about subatomic particles best characterizes electrons? A. Positive charge, light, circling the nucleus B. No charge, heavy, found in nucleus C. Negative charge, light, circling the nucleus D. Negative charge, heavy, circling the nucleus

[Answered] How many atoms are there in 90.2 grams of selenium?