This runner completed a 100 meter race with a time of 13.75 seconds. what was her average speed

What would be the formula of the precipitate that forms when pb (no3) 2 (aq) and k2so4 (aq) are mixed? pbk2 pbso4 h2o none of the above k (no3) 2?

Match the type of atomic bond with the correct definition. Ionic BondMatch the type of atomic bond with the correct definition.

How do you know a chemical reaction has taken place?

Gypsum is a mineral that is used in the construction industry to make drywall (sheetrock). The chemical formula for this hydrated compound is CaS04 • 2H20. A hydrated compound contains water molecules within its crystalline structure.

In which of the following substances does sharing of electrons between two atoms occur? A. PO43- B. Ag C. Nal D. He

If a substance cannot be seperated physically or chemically, it is?

Match each type of sedimentary rock with its composition. 1. mineral crystals clastic sedimentary rock 2. remains of dead creatures organic sedimentary rock 3. weathered rock particles chemical sedimentary rock

A scientist observes the boundary between two tectonic plates for a decade and finds that no new volcanoes have formed over the course of her investigation. Does this result support the theory of plate tectonics? Why or why not?

Why is it incorrect to balance a chemical equation by changing the subscripts?

A solution of CuSO4 is labelled 0.01 M. How much CuSO4 in grams, must be used to make 1 liter of solution? A) 1.120 g B) 1.595 g C) 1.6 g D) 15.0 g