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Refer to chart 2. How has the development of computers depended on chemists?
They wrote the software to run the computer programs
Does not change the speed of the reaction
1
Chemistry affects our daily lives
They have increased the amount and quality of the food we eat
.3 g
They will show that the shape has changed but the mass is the same
The amount of vinegar
Students measure 2.0g of baking soda and 5.0g of vinegar. They mix them together and watch bubbles form. The mass of the resulting liquid is 6.7g. Based on the law of conservation of mass, what should the mass of the gas that escaped be?
They wrote the software to run the computer programs
Does not change the speed of the reaction
1
Chemistry affects our daily lives
They have increased the amount and quality of the food we eat
.3 g
They will show that the shape has changed but the mass is the same
The amount of vinegar
A student uses clay to model the conservation of mass. 1st she finds the mass of the clay on a balance. Then she makes shapes with the clay without adding or removing clay. She masses it again. How will her results model this law?
They wrote the software to run the computer programs
Does not change the speed of the reaction
1
Chemistry affects our daily lives
They have increased the amount and quality of the food we eat
.3 g
They will show that the shape has changed but the mass is the same
The amount of vinegar
Refer to chart 2. Which of the following would be the best title for this reading?
They wrote the software to run the computer programs
Does not change the speed of the reaction
1
Chemistry affects our daily lives
They have increased the amount and quality of the food we eat
.3 g
They will show that the shape has changed but the mass is the same
The amount of vinegar
Refer to chart 1. Which test should be considered the control?
They wrote the software to run the computer programs
Does not change the speed of the reaction
1
Chemistry affects our daily lives
They have increased the amount and quality of the food we eat
.3 g
They will show that the shape has changed but the mass is the same
The amount of vinegar
Refer to chart 2. How have chemical fertilizers, insecticides and herbicides made our standard of living higher?
They wrote the software to run the computer programs
Does not change the speed of the reaction
1
Chemistry affects our daily lives
They have increased the amount and quality of the food we eat
.3 g
They will show that the shape has changed but the mass is the same
The amount of vinegar
What should the students conclude about changing the amounts of reactants?
They wrote the software to run the computer programs
Does not change the speed of the reaction
1
Chemistry affects our daily lives
They have increased the amount and quality of the food we eat
.3 g
They will show that the shape has changed but the mass is the same
The amount of vinegar
Refer to chart 1. Which variable was changed in test # 2?
They wrote the software to run the computer programs
Does not change the speed of the reaction
1
Chemistry affects our daily lives
They have increased the amount and quality of the food we eat
.3 g
They will show that the shape has changed but the mass is the same
The amount of vinegar
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