Atoddler peddling a tricycle applies a net force of 150n to the pedals. we will assume that 100% of this force is transferred to foward motion. the grandmother of the toddler notice that the toddler on the tricycle is accelerating at a rate of 5m/s. what is the combined mass of the tricycle and toddler?

What does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

Which of the following is not true about the atomic model of substances?