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a reaction where heat leaves the system is classified as

1 answer 1 month ago

when coal burns the total mass before and after the reaction stays the same why

1 answer 1 month ago

a car engine converts chemical energy in gasoline into motion. what type of reaction occurs?

1 answer 1 month ago

Use a calculator to compute the average heights of the plants in each group to the nearest centimeter. Week 1 Average Height Control Group: cm Exper. Group: cm

1 answer 2 months ago

es002-1.jpg Which plant is being measured correctly?

1 answer 2 months ago

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