Which relationship is an example of commensalism?

Why is air a mixture? I do not understand why air is a mixture. can you guys write a brief explanation about why air is a mixture, whether it is homogeneous or heterogeneous, and how it can be separated.

What is the movement of air from high-pressure areas to low-pressure areas? is the movement of air from high - pressure areas to low pressure areas.

Any temperature on the Kelvin scale can be changed to Celsius degrees by a. subtracting 100 from it. b. adding 212 to it. c. subtracting 273 from it. d. subtracting 32 from it.

What will the volume of a 3.8 M solution be if it contains 4.9 grams of calcium hydroxide?

Which type of element is most likely to gain electrons when it forms a bonds?

Paint, paint thinners and some cleaning agents can weaken the shell of a hard hat and may eliminate

A 10 chunk of metal has a specific heat of 0.25 J/g ºC. The temperature is changed from 10ºC to 45ºC. How much heat is required?

In this reaction what is the correct coefficient for sodium chloride? pb (no3) 2? nacl → pbcl2? nano3

Classify each of the following as a path function or a state function. work energy distance traveled enthalpy heat

Flammable materials like alcohol should never be dispensed or used near True or False