Nouu wu lucas.
read each question and write the answer in the space provided.
1. what wa...
Nouu wu lucas.
read each question and write the answer in the space provided.
1. what was the worldwide average life expectancy in 2000?
a. about 30
c. almost 80
b. more than 67
d. none of the above
2. what was the worldwide life expectancy in 1900?
a. about 30
c. almost 80
b. more than 67
d. it was not measured in 1900.
3. what is the life expectancy for people in many developed countries
today?
a. 70 years or more
c. 95 years or more
b. 80 years or more
d. 40 years or more
Answers: 1
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Which substances have the lowest melting points: ionic covalent, or metallic
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Asample of ammonia reacts with oxygen as shown. 4nh3(g) + 5o2(g) 4no(g) + 6h2o(g) what is the limiting reactant if 4.0 g of nh3 react with 8.0 g of oxygen? o2 because it produces only 0.20 mol of no. nh3 because it produces only 0.20 mol of no. o2 because it produces two times less no than nh3. nh3 because it produces three times more no than o2.
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What is the approximate vapor pressure when the gas condenses at 70 degrees celsius
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Chris is about to do an experiment to measure the density of water at several temperatures. his teacher has him prepare and sign a safety contract before beginning the experiment. which term is mostlikely part of the safety contract
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