1. Group 1-Find out the number, type and location of fire extinguishers available in your school,
nearby shops and factories. Write a brief report about the
preparedness of these establishments to fight fire.

Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?