Cell, neclus, genes, chromosomes, tissue, organ, organ system organism arrange in order?

Consider the balanced equation below. N2H4 + 2H2O2 → N2 + 4H2O What are the mole ratios of hydrazine (N2H4) to hydrogen peroxide (H2O2) and hydrazine to water? 1:2 and 1:4 1:3 and 1:4 1:2 and 3:5 1:3 and 3:5

Use your periodic table of elements. Take any element of your choosing (from period 4 or above) and answer the following questions: What is the element's name and symbol? Is it a metal, nonmetal, or metalloid? Which family does it belong to?

Using an extinction coefficient of 15,000 M-1cm-1, calculate the concentration (in mM) of a molecule with an absorbance value of 0.200. You can assume the standard cuvette pathlength of 1 cm.

A 55-g sample of a gaseous fuel mixture contains 0.43 mole fraction propane; the remainder of the mixture is butane. What are the masses of propane and butane in the sample?

You are asked to make 10 moles of iron (Fe) from iron oxide (fe203) and excess carbon monoxide (CO). Fe203 (s) + 3CO (g) - - 2Fe (I) + 3CO2 (g) How many moles of iron oxide must you use? 5 moles 2 moles 10 moles 3 moles

Some polymers are elastic because they are made of a. carbon. c. sugar and alcohol. b. phosphate ladders. d. cross-linked chains.

The hot converting blank is the layer of rock between the earths crust and core

Compare the compressibility of gases and liquids. Support your answer by describing the arrangement of particles in gases and liquids.

Why are ionic crystals soluble in water?

What group is more reactive than the alkaline earth metals