synthesis A) reaction decomposition B) reaction single replacement C) reaction double replacement D) reaction Explanation: The correct classification is double recplacement reaction. The lead and the potassium replace each other making this a double replacement reaction. 59) Why do the air molecules inside a bicycle tire speed up as the temperature gets warmer? because the heat is transferred to the molecules and gives them A) more kinetic energy because the warmer air allows the particles to be free from B) gravitational forces because the heat liberates the potential energy C) inside each molecule because the warmer air is less and D) particles can move more Explanation: Air molecules speed up in warmer temperatures because the heat is transferred to the molecules and gives them more kinetic energy. Kinetic energy is energy of motion. 60) these elements from LEAST to GREATEST atomic mass. Li, He A) N, S He, Li, B) N, S N, He, C) Li, S S, N, D) Li, He Explanation: He, Li, N, S orders these atoms from LEAST to GREATEST atomic mass. Atomic mass is the average atomic mass of the most abundant isotopes of an element. Simply add the number of protons and neutrons. 61) Predict the energy as a substance changes from a solid to liquid to gas on this graph. It would increase from bottom left A) to top right. It would decrease from top left to B) bottom right.
A) synthesis reaction B) decomposition reaction C) single replacement reaction D) double replacement reaction Explanation: The correct classification is double recplacement reaction. The lead and the potassium replace each other making this a double replacement reaction. 59) Why do the air molecules inside a bicycle tire speed up as the temperature gets warmer? A) because the heat is transferred to the molecules and gives them more kinetic energy B) because the warmer air allows the particles to be free from gravitational forces C) because the heat liberates the potential energy inside each molecule D) because the warmer air is less and particles can move more Explanation: Air molecules speed up in warmer temperatures because the heat is transferred to the molecules and gives them more kinetic energy. Kinetic energy is energy of motion. 60) these elements from LEAST to GREATEST atomic mass. A) Li, He N, S B) He, Li, N, S C) N, He, Li, S D) S, N, Li, He Explanation: He, Li, N, S orders these atoms from LEAST to GREATEST atomic mass. Atomic mass is the average atomic mass of the most abundant isotopes of an element. Simply add the number of protons and neutrons. 61) Predict the energy as a substance changes from a solid to liquid to gas on this graph. A) It would increase from bottom left to top right. B) It would decrease from top left to bottom right.