Which statement about gases is true

1. All changes in phase are called this type of change. 2. This affects the state of matter. 3. When you grind a material up what does it increase? 4. What is the substance being dissolved called?

What phase change is endothermic

What characteristics should an isotope used for dating have?

Which statement is true about molecules and compounds? Question 7 options: A Both are made of only one kind of atom. B Both are made of two or more atoms. C Both are made of two or more elements. D Both are made of only one element.

Which two factors does the power if a machine depend on A. work and distance B. force and distance C. work and time D. time and distance

Consider the following unbalanced redox reaction: Cr2O72 - (aq) + NO2 (aq) - Cr3 + (aq) + NO3 (aq) What is the oxidizing agent in the reaction?

At stp conditions the volume of 22g of co2 is?

32 Which electron configuration represents the electrons in an atom of Ga in an excited state? (I) 2-8-17-3 (3) 2-8-18-3 (2) 2-8-17-4 (4) 2-8-18-4

Why do you think that the particles of a suspension settle out but the particles of a colloid do not

A solution that is 33.6 % by mass of phenol (C6H5OH) in water is prepared. What is the mole fraction of the phenol?