Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation:

() Na2HPO4 → () Na4P2O7 + () H2O

What holds atoms together in a molecule? A: Densiy B: Gravity C: Physical bonds D: Chemical bonds

A student calculates that the water potential of a solution in a dialysis bag is equal to - 6.25 bars. The water potential of a solution surrounding the bag is - 3.25 bars. In which direction will water flow?

Your pet snake would be found in this kingdom

Why does the modern atomic theory today represent the best explanation scientists have to offer?

Jenna constantly experiences feelings of hopelessness and worthlessness. jenna's doctor, jacob, advises her to start taking antidepressant drugs that contain serotonin and dopamine. according to dr.

A small rock remains at rest in outer space while an astronaut pushes horizontally on it with a force of 20 N. Which of the following must be true? A. There is another horizontal force acting on the rock. B.

If an igneous rock has very large crystals of minerals that you can see when looking at it, which type of igneous rock is it

You have a 60-foot roll of fencing and a large field. You want to make two paddocks by continuing the fencing down the middle of a rectangular enclosure. What are the dimensions of the largest such enclosure you can make?

Crystallization is a separation technique used to produce rock candy from a sugar solution. true or false

A car traveling in a straight line has a velocity of 3.79 m/s at some instant. After 5.4 s, its velocity is 11.9 m/s. What is its average acceleration in this time interval? Answer in units of m/s 2