Products and Reactants

Number IN FRONT of reactants or products

• product

• reactant

• coefficient

• subscript

a series of symbols and formulas that represents a chemical reaction

• reactant

• product

• Chemical equation

The substances initially involved in a chemical reaction

• Reactants

• Products

• Chemical Reaction

• Chemical Process

Tags

NGSS.MS-PS1-2

In a certain chemical reaction, Reactant 1 and Reactant 2 release thermal energy. Students collect data by measuring the temperature change produced by adding increasing amounts of Reactant 2 to 25 grams of Reactant 1. They graph the data. Students must design a device that uses 25 grams of Reactant 1 and produces the maximum amount of heat with the smallest amount of Reactant 2. How much of Reactant 2 should they use to meet the criteria of the design challenge?

• 10 grams

• 15 grams

• 20 grams

• 25 grams

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS1-2

NGSS.MS-PS3-3

NGSS.MS-PS3-4

The substances that are yielded from a chemical reaction

• Reactants

• Products

• Chemical Reaction

• Chemical Process

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In a chemical reaction, _____________________ form new substances with different properties.

• Reactants

• Products

• Thermal Energy

• Temperature

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Students are asked to design a device that uses a chemical reaction that absorbs heat energy in order to chill a beverage. The criteria for the design challenge as provided by the teacher are listed below. The chemical reaction must meet the following criteria: •Produce a drop in temperature of at least 15°C •Require no more than 50 grams total of reactants •Result in products that are not harmful •The reaction should happen in less than one minute One group of students finds that by combining 30 grams of one substance with 25 grams of another substance, they can produce a drop in temperature of 18°C in about 30 seconds. The only product of the reaction is water. This group of students need to redesign their product because they have failed to meet which of the design challenges?

• Produce a drop in temperature of at least 15°C.

• Require no more than 50 grams total of reactants.

• Result in products that are not harmful.

• The reaction should happen in less than one minute.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-PS1-6

NGSS.MS-PS3-3

Number seven (7) is indicating ____ of the equation.

• reactants

• products

• equation

• formulas

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The three (3) indicates which part?

• reactants

• products

• equation

• formulas

What is a Reactant?

• The end result of a chemical reaction.

• The arrow that separates the product from the reactant.

• The number to the lower right of an element that shows the number of atoms.

• The substance changed in a chemical reaction.