How does the roots of most plants obtain food for suvival

Is the density of gas unaffected by changes in temperature?

How to find the mass number of an atom with 45 neutrons and 35 electrons?

Consider the following cyclic process carried out in two steps on a gas. Step 1: 50. J of heat is added to the gas, and 20. J of expansion work is performed.

What type of ions have names ending in ide?

A titanium cube contains 2.86*1023 atoms. what is the edge length l of the cube? the density of titanium is 4.50 g/cm3. (the volume of a cube is v=l3.)

Using the periodic table, determine the number of neutrons in a carbon.

Sailin Steve likes to test the buoyancy of different objects. He threw a spherical object into a fluid that has a greater density than the object does. He also threw a square object into the fluid that has a greater density than the fluid.

The sun is directly overhead at the equator on what day of the year? A. Zenith B. Solstice C. Equinox D. Ecliptic Isn't it the Solstice?

In the SI system of units, the mole is one of seven base units. It is frequently used in chemical calculations. However, a mole of something is just a particular quantity of it.

A student used a DCP solution (standardized to 9.98x10-4M) to analyze a sample of extract from 2.50g of solid food. The titration required 22.49mL of DCP. 87.00% of all the ascorbic acid in the food was collected in the extract.