The variables for this experiment include the physical properties of the solutions and the pH of each solution. Use the drop-down menus to complete the sentences and identify the independent and dependent variables. The independent variable, the one that is intentionally manipulated, is . a)the pH of the solutions b) the physical properties c) the system of measurement The dependent variable, the one that you measure the response in, is . a) the pH of solutions b) the physical properties c) the system of measurement

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next

What is the mass of 0.46 mol of mgcl2

(04.01 lc) which of the following is true about science? (5 points) select one: a. it is not influenced by social conditions. b. it is not determined by external local factors. c. political conditions are unable to influence it. d. economic concerns may prevent it from solving problems.