What does the word giraffe comes from

In a solution composed of benzene and toluene that has a vapor pressure of 32 torr at 20°C, what is the mole fraction of benzene?

Why is a piece of apple rotting a chemical change

Why is methane, CH4, a nonpolar compound? It does not have covalent bonds. Each covalent H bond is nonpolar. The nonpolar bonds are distributed evenly around the carbon atom. It forms a symmetrical planar triangle.

In grams which is the most accurate description of the mass ratio of hydrogen to oxygen when they chemically combine to form water? A: 8:1 always B. 1:8 always C: 1:8 sometimes

What is the specific heat (J/g°C) of a metal object whose temperature increases by 3.0°C when 17.5 g of metal was heated with 38.5 J? a. 0.73 b. 0.15 c. 1.4 d. 4.18 e. none of the above

Salt concentration would be an example of what type of factor in an ecosystem? A. food production B. abiotic C. biotic

Describe haw serface area affects the rate of a reaction

Describe one of the major differences between oceanic crust and continental crust.

What occurs in an updraft A cool air from the east rises B cool air from the south rises C warm air from the south rises D warm air from the west rises

Como se producen las bacterias