Which of the following pieces of equipment should be used to measure the electron potential difference between two points on an electric circuit? a
Colorimeter
b
Spectrophotometer
c
Voltmeter
d
pH probe

In 2002, the rare earth elements mine in mountain pass, california was closed because

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.

Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate → enzyme-substrate complex (b) enzyme + substrate ←−→ enzyme + products (c) enzyme + substrate ←−→ enzyme-substrate complex → enzyme + products (d) enzyme + substrate ←−→ enzyme-substrate complex → enzyme-substrate complex + products