For how long must a current of 0.5A (Ampere) need to pass through a solution of nickel chloride to deposit 0.2 g of nickel (NI=51 Faraday's constant=96500C mol¯¹​

2positives of biotechnology: 1. plants have become more resistant to viruses and other communicable pests.2. with the of biotechnology, we have been able to produce better tasting fruits as well as vegetables.2 negatives of biotechnology: 1. biotechnology poses a number of environmental threats. genetically modifies crops often infect monarch butterflies and other insect species.2. viruses could combine with crops.

Talc (french chalk) is the ingredient

The teacher is mostly talking about the distillation of a mixture