Some species are no longer living but we know they existed one time. we know this because ...

Naphthalene is a hydrocarbon used in mothballs, in a combustion analysis it produced 8.80 g of co2 and 1.44 g of water. calculate the empirical formula.

The rate of sulfur formation in the reaction of sodium thiosulphate with nitric acid: a. Does not change with increasing concentration of sodium thiosulfate b. Increases with increasing concentration of sodium thiosulfate c.

Would you expect the density of glass to be greater or less than the density of water

What type of solid is candle wax explain

Suggest 2 reason why copper should not be disposed of in a landfill site

The four elements comprising over 90 of living matter are

Consider the gas-phase reaction, n2 (g) + 3 h2 (g) 2 nh3 (g), for which kp = 43 at 400 k. if the mixture is analyzed and found to contain 2.0 bar of n2, 2.0 bar of h2 and 27.0 bar of nh3, describe the situation:

How many moles of ions are in 285 ml of 0.0150 m mgcl2?

Given: logK=nE∘0.0592 What is the value K for this redox reaction? Zn2 + (aq) + 2 Cl - (aq) → Zn (s) + Cl2 ( g. Ecell = - 2.12 V

What is 350 kelvin on the Celsius scale of temperature?