1. Which of these statements is true? A.) Particles in a gas are in constant motion, but particles in liquids and solids are not.
B.) Particles in gases and liquids are in constant motion, but particles in solids are
not.
c.) All particles are in constant motion.
d.) Particles are only in motion if they are above 0 degrees Celsius.

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!