Flow chart for separation of silicon dioxide, cottonseed oil, water, sodium chloride, FDC red dye #3

Which of these changes would notcause an increase in the pressure of a contained gas? The temperature is increased. More of the gas is added to the container. The average kinetic energy of the gas is increased.

Thermal expansion or thermal contraction would be most noticeable in which of the following? A. Hot car seat B. Concrete in a sidewalk C. Air inside a balloon D. Liquid in a drink

This rabbit lives where it gets very cold in the winter. It does this easily because it is an endotherm. Being an endotherm or warm-blooded has its advantages and disadvantages.

Which of the following pairs of elements are chemically most similar to each other? A. K and Ca B. C and Si C. N and O D. Sn and As

Is a click heat pad a chemical or physical change?

If the reaction to form water were written h2 (g) + 12o2 (g) →h2o (g), would you expect the same value of δh as in equation 2h2 (g) + o2 (g) ⟶2h2o (g) δh=-483.6kj?

Write, Balance and Label the type of reaction: Potassium Hydroxide plus phosphoric acid yields potassium phosphate and water.

How do molecules appear in gas

Iron has a density of 7.86 g/cm3. Calculate the volume (in dL) of a piece of iron having a mass of 4.77 kg.

What is the empirical formula for a compound with the molecular formula C6H12Cl2O2? (1) CHClO (3) C3H6ClO (2) CH2ClO (4) C6H12Cl2O2