What is commensalism

Whenever a chemical is dispensed from its original container into a secondary container the secondary container must be labeled to show the product name and information true or false

In general, atomic radii: A. decrease down a group and remain constant across a period. B. decrease down a group and increase across a period. C. increase down a group and increase across a period. D.

1. Bubbling or fizzing is an indicator of a. property change b. phase change c. physical change d. chemical change

A welding torch produces a flame by burning acetylene fuel in the presence of oxygen the energy released from the acetylene fuel is then used to melt a metal which energy transformation happens during this process

Gaseous hydrogen iodide is placed in a closed container at 425 degrees C, where it partially decomposes to hydrogen and iodine: 2HI (g) - -->/<---H2 (g) + I2 (g). At equilibrium it is found that [HI] = 3.59

Magnetism easily separates what mixture? A). Sand and glass B). Sand and iron C). Sand and clay D). Sand and aluminum

Match the science with the best description?

Can magnetism be used to identify a substance

Nitrogen dioxide dimerizes to give dinitrogen tetroxide: 2NO2 (g) → N2O4 (g). At 298 K, 12.55 g of an NO2/N2O4 mixture exerts a pressure of 0.963 atm in a volume of 6.92 L. What are the mole fractions of the two gases in the mixture?

What is the concentration of a solution, in gsolute/100gsolvent, made using 2.83 g of KNO3 in 2.03 g of H2O? Do not include units in your answer.