1. The grade on a project is based 10% on an oral presentation, 20% on a written paper, and 70% on the research. A student receives the grades:
Oral Presentation 75 points, Written Paper 80 points, and Research 95
points. What should the final grade for his project be?
First, multiply each of the grades by its weight (its share of the total value)
Fill in each of the blanks as you answer the question. Write your answers
using digits.
75. Type your answer here.
Type your answer here.
80 . Type your answer here.
II
Type your answer here.

Choose all the answers that apply. as ocean depth increases, temperature decreases temperature increases pressure increases pressure decreases salinity increases density increases

Oxidation-reduction reactions (often called "redox" for short) are reactions that involve the transfer of electrons from one species to another. oxidation states, or oxidation numbers, allow chemists to keep track of these electron transfers. in general, one element will lose electrons (oxidation), with the result that it will increase in oxidation number, and another element will gain electrons (reduction), thereby decreasing in oxidation number. the species that is oxidized is called the reducing agent or reductant. the species that is reduced is called the oxidizing agent or oxidant. to sum up: oxidation = increase in oxidation state = loss of electrons = reducing agent reduction = decrease in oxidation state = gain of electrons = oxidizing agent part a which element is oxidized in this reaction? fe2o3+3co→2fe+3co2 enter the elemental symbol. view available hint(s) is oxidized part b which element is reduced in this reaction? 2hcl+2kmno4+3h2c2o4→6co2+2mno2+2kcl+4h2o enter the elemental symbol. view available hint(s) is reduced

What relationship exists between an enzyme and a catalyst?