Sulfur and fluorine react in a combination reaction to produce sulfur hexafluoride: S (g) + 3F2 (g) - >SF6 (g) If 50 g S is allowed to react as completely as possible with 105.0g F2 (g), what mass of the excess reactant is left.

Heat from our closet star the travels by radiation

Air contains maximum amount of?

Which of the following is an example of a qualitative measurement? A) blue crystal B) 2 moles of carbon atoms C) 10 g of salt D) 12 dl. of water

What is this material This material can begin as a solid on the surface of the Earth. Weathering can then break the material up into pieces, and erosion can transport the pieces to ocean bottoms.

Which of these statements is false? A. The color we see for any object is color that is reflected from it. B. The primary colors of pigment mix to make white. C. The primary colors of light mix to make white. D. White light is made of all colors.

chromium can combine with chlorine to from corneum chloride which equation is a correct representation of this reaction

What is the atomic weight of a hypothetical element consisting of two isotopes, one with mass = 64.23 amu (26.0%), and one with mass = 65.32 amu? (a) 65.3 amu (b) 64.4 amu (c) 64.9 amu (d) 65.0 amu (e) 64.8 amu

Is this base a physical or chemical property?

Classify each of the following aqueous solutions as a nonelectrolyte, weak electrolyte, or strong electrolyte. a) LiClO4 b) HClO c) CH3CH2CH2OH d) HClO3 e) CuSO4 f) C12H22O11

Give examples of temporaty physical change