3. A prediction or statement that can be tested is a. a conclusion
b. an observation
c. a control
d. a hypothesis

And a) oxygen i believe

Nonmetal are moldable and easily shaped

Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.

Ansa leaf changing color in autumn;