Which of these organisms have an exoskeleton

A cube with edge = 1.00" of an unknown pure substance has a mas off 10.0 oz. what is the density of this substance in g/mL? In kg/L?

A thermometer that was used in a calorimeter was consistently 2.7 °c too high. how would this affect the calculations of δh for the reactions conducted in the calorimeter?

A vertical column of elements in the periodic table is called a ...

The energy transfer between the system and the surroundings, in the form of heat at constant pressure is described by which of the following symbols? A. ΔS B. ΔG C. ΔT D. ΔH

What is another name for an activated complex? A. rate limiter B. energy barrier C. collision group D. transition state

What is an element that has more valence electrons than fluorine and less energy levels than sodium?

Why can't we breathe in pure oxygen for long

In warm water conditions, female offspring hatch from eggs laid by painted turtles. Male offspring are produced under cold conditions.

It takes 53.0 J to raise the temperature of an 11.0 g piece of unknown metal from 13.0∘C to 24.2 ∘ c. What is the specific heat for the metal?

What happens to the velocity of a sound wave in air if the temperature of the air increases