19. which of the following statements is accurate? a. if an object is said to be decelerating, its velocity must be increasing. b. if an object's velocity decreases, then the object is accelerating. c. if an object's velocity remains constant, its acceleration must be increasing. d. if an object's velocity is changing, it's either experiencing acceleration or deceleration

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

What will most likely happen when two bromine atoms bond together?