2.65 g of solid sodium carbonate is dissolved in just enough water to make 250cm³ of standard solution. calculate the concerntration of the sodium carbonate standard solution.

*30 points + brainliest answer* gravity is pulling an object into the sun. the closer the object gets to the sun, the greater the gravitational force that acts on the object, increasing its acceleration. a line graph plotting the speed of the object against time would have which shape? a: straight line of positive slope b: curved line that slopes upward c: curved line that slopes downward d: straight line of negative slope