DDT was a hazardous:

a) insecticide

b) disease

c) industrial waste

d) weed killer

Student follow up 1 The ionic equation for the reaction between zinc and sulfuric acid is: Zn (s) + 2H + (aq) - Zn?" (aq) + H2 (g) a State what has been oxidised in this reaction. Explain your answer in terms of electrons.

What is the difference between foliated and nonfoliated

Are usually solid shiny and conductive object

Relative dating uses laws or principles of stratigraphy and paleontology. These laws of relative dating are:

How much heat energy is absorbed when 6.83 kg of water is heated from 10.0 0C to 47.0 0C. The specific heat of water is 4.184 J/g 0C.

A 20.00 g milk chocolate bar is found to contain 12.00 g of sugar. How many milligrams of sugar does the milk chocolate bar contain?

Sedimentation is least likely to occur

Why it is important to learn about elements, compound, and mixture?

Sodium borohydride is stable in acidic aqueous solutions. True or False

Assume at exactly 100.0°c and 1.00 atm total pressure, 1.00 mole of liquid water and 1.00 mole of water vapor occupy 18.80 ml and 30.62 l, respectively.