04/29/20

#### Replace one word to make it true

An excess reagent is completely consumed in a chemical reaction

04/27/20

#### Algebra Word Problem

It costs $60 to go to the movies for 2 adults and 5 children. It costs$66 for 5 adults and 2 children. Write a system and solve for the price of an adult and a child’s ticket.

04/27/20

#### on average, how much does okapi weigh, and how much does llama weigh?

the combined average weight of an okapi and a llama is 450 kilograms. the average weight of 3 llamas 190 kilograms more than the average weight of one okapi.

04/27/20

#### Chemistery question calculating molality

What is the molality of a solution that contains 2.50 moles of NaCl in 150 mL of water? (The density of water is equal to 1.0  .)

04/27/20

#### What is the value of x ?

The triangle and the square have equal perimeters. 1. Find the value of x.

04/27/20

#### Use standard potentials to calculate the equilibrium constant

Use standard potentials to calculate the equilibrium constant for the following cell and cell reaction at 298 K:           Cr(s) + Zn2+(aq) → Cr2+(aq) + Zn(s)

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