Which element is most plentiful in earth's crust?
a. aluminum
b. gold
c. iron
d...
Answers: 1
Chemistry, 22.06.2019 02:00
In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al
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Chemistry, 22.06.2019 12:00
What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist
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Chemistry, 23.06.2019 09:50
T(s) in2os] (m) 0 185 2.39 546 1.90 725 1.70 the decomposition of n205 can be described by the equation 2.68 given these data for the reaction at 45°c in carbon tetrachloride solution, calculate the average rate of reaction for each successive time interval. ntr s to 185 s 185 s to 546 s 546 s to 725 s number number number reaction rate: m/s m/s m/s
Answers: 1
Chemistry, 23.06.2019 15:40
The table below shows the freezing points of four substances. substance freezing point (°c) benzene 5.5 water 0 butane –138 nitrogen –210 the substances are placed in separate containers at room temperature, and each container is gradually cooled. which of these substances will solidify before the temperature reaches 0°c? benzene water butane nitrogen
Answers: 2
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