An atomic nucleus is composed of a. protons b. protons and neutrons c. protons and electrons d. protons neutrons and electrons

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?