Which of the following best describes acid anhydrides?

when hydrogen chloride is dissolved, the polar bond between hydrogen and chlorine allows the hydrogen to separate from the chlorine.

aqueous solutions that contain acids are able to conduct an electric current because of the presence of electrolytes, or ions.

when a strong base like sodium hydroxide is dissolved, large amounts of heat are released because the process is exothermic.

when carbon dioxide (co2) is dissolved in water, carbonic acid (h2co3) is formed. the carbonic acid acts as an acid by giving off hydrogen ions to water.

Janel’s class studied properties of matter and how matter can change. janel decided she would do an experiment mixing baking soda and vinegar. question: describe the properties of baking soda and vinegar, and explain the changes that janel should see when she mixes the two types of matter. •first, identify the physical state of matter of baking soda. describe another property of baking soda. •next, identify the physical state of matter of vinegar. describe another property of vinegar. •then, explain what janel should see when she mixes the baking soda and vinegar. •describe the states of matter of the new materials that are formed. •explain how janel can be certain a change has occurred. me

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?

When a beta particle is emitted, the mass number of the nucleus a. decreases by one b. increases by one c. remains the same d. decreases by two