A scientist is observing a cell and notices the presence of starch. What does this tell her about the cell?

The absolute temperature of a gas increased four times while maintaining a constant volume. What happens to the pressure of the gas?

Lead is not used for preparing hydrogen by treating it with dilute sulpheric acid

What do you think will happen to the temperature if you used 75 mL of HCl and 75 mL of NaOH instead of the 10 mL each you used in Experiment 1.

What effect will the number of particles and temperature have on the rate of diffusion of gas molecules?

What is the molar mass of ace tic acid

Plastic, rocks, and steel are all matter. They are made of tiny particles that can't be broken down into smaller pieces. These particles are called:

The palm tree with island is a population or biome or community

A gene is a section of dna within a chromosome that codes for a

An electron charge e mass m and a positron charge e mass m revolve around their common center of mass under the influence of their attractive coulomb force Find the speed v of each particle in terms of e m k and their separation L

Find the density of an object with a volume of 2.5 cm3 and a mass of 8.0 g.