What is the density of an object with a volume of 20cm cubed and a mass of 40g?

What two elements of the Linnaean system make up an organisms scientific name

What can be said of a closed system when an exothermic reaction proceeds in an aqueous solution?

Compute a value for DAB for a system of argon (A) and oxygen (B) at 294 K and atmospheric pressure.

Which item is not a characteristic of a civilization

You are the first person to land on mars. you find a substance and determine that is has definite volume but it takes the shape of its container. the substance is most likely water carbon dioxide gas rock the mars rover

What is the mass, volume, density, and substance for Block C:

Which factors affect electronegativity? A. Number of electrons and atomic radius B. Number of unshielded electrons and density of the element C. Atomic radius and number of unshielded protons D. Density of the element and atomic radius

What is the difference between an amide and an amine? And what is a substituted amide?

Balance the following chemical equation: / text{CH}_ 4 + CH 4 + start text, C, H, end text, start subscript, 4, end subscript, plus / text{O}_ 2 / rightarrow 2 →start text, O, end text, start subscript, 2, end subscript, right arrow / text{CO}_2 +

How did the invention of the spectroscope in 1859 change the science of chemistry