A rectangular steel block of dimension 100cm * 50m * 20cm has a mass of 450kg. Calculate the density.

What will happen to the energy in a shark if it never gets eaten

A scientist notices that a person has two recessive genes for a trait. This describes the person's phenotype genotype traits characteristics

What is the atomic mass of dinitrogen trioxide (atomic mass of oxygen=15.999 u; atomic mass of nitrogen = 14.007 u) ?

The number of total electrons of iron is: a) 55.85 b) 29.85 c) 26 d) 27.78 e) 56

In south wind, the wind is coming from the

George is writing an essay about the role of observation and inference in the development of the atomic theory. He wants to explain why it was more difficult to observe the presence of neutrons in atoms.

Which pair of statements below is correct? Multiple Choice An octet is formed via ionic bonding when one or more valence electrons are transferred from one atom to another.

If wave A has a frequency of 4.60 x 10^14 s-1, what is the wavelength in nanometers (show your work) ?

What is the mass in grams of 85.32 mL of blood plasma with a density of 1.03 g/mL?

The molar solubility of Ag2CO3 is 0.074M at 10°C. What is the Ksp of Ag2CO3 at the same degree?