Chemistry, 04.06.2021 07:30 bradenjesmt1028
Read the excerpt and then answer the question:
When we burn something—whether it is a log, a match, or the gasoline in our gas tank—what we are actually doing is causing a chemical reaction. Burning gasoline may not seem like the kinds of chemical reactions that you have seen before. After all, chemical reactions cause substances to change into other substances as the atoms of the reactants rearrange to form the products. When gasoline burns, it doesn’t seem to change into a different substance. Instead, it seems to disappear, leaving you with an empty tank. If burning gasoline actually causes a chemical reaction to happen, then why doesn’t your tank fill up with a different substance? Can a chemical reaction cause something to change into nothing?
Which of the following is the best explanation for what happens to the atoms that were once present in the tank of gas?
The atoms were destroyed to create energy to power the car
The atoms were destroyed to create energy to power the car
The atoms of gasoline rearranged into a colorless gas
The atoms of gasoline rearranged into a colorless gas
The atoms from the gasoline are now a part of the car
The atoms from the gasoline are now a part of the car
Some of the atoms from the gasoline were destroyed and some rearranged to another substance
Some of the atoms from the gasoline were destroyed and some rearranged to another substance
Answers: 3
Chemistry, 21.06.2019 22:30
How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that
Answers: 1
Chemistry, 22.06.2019 14:10
Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.
Answers: 2
Chemistry, 22.06.2019 22:00
All of the following are homogeneous mixtures except a) sugar dissolved in water. b) orange juice. c) coffee with cream. d) household vinegar. e) apple juice
Answers: 1
Read the excerpt and then answer the question:
When we burn something—whether it is a log, a match,...
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