Which of the following chemical equations is balanced?

A. H2 + Cl2 4HCl

B. 4H2 + 2O2 2H2O

C. 4Fe + 3O2 2Fe2O3

D. 2Fe + HCl FeCl2 + H2

How does gene flow cause a change in the gene pool

Where in the cell does translation take place

What are the roles of the circulatory system in the process of cellular respiration?

What occurs when vibrations traveling through an object match the object's natural frequency? a. reflection b. refraction c. diffraction d. resonance P

Clearcutting is a controversial practice that is widely applied in forests managed for wood production in many parts of the world.

after the brain receives information from the body's sensory receptors, what is the next step in responding to this information?

What does the endosymbiont theory explain about the origins of plant and animal cell

Suppose you have monohybrid pea plants in your garden and find that they produce round seeds to wrinkled seeds in the ratio of 3:1 if the alleles are designated R and r, respectively, what are the probable genotypes of the wrinkled seeds produced by

What is the average for the following measurements 7.1 g, 9.8g, 2.3g, 8.5g, 7.4g, 5.7g

Why is it that patches placed on the skin can be used to deliver medications to the bloodstream?