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A person standing 35 feet from a street light casts a shadow, as shown. What is the height "h" of the street light?
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If the same amount of cacl2 is added to equal volumes of water and maple syrup, which will have the higher temperature?
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Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture
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Chemistry, 22.06.2019 23:30
If it is an isoelectronic series select true, if not select false. o2-, s2-, se2-, te2- na+, k+, rb+, cs+ n3-, p3-, as3-, sb3- ag, cd+, sn3+, sb4+ f-, cl-, br-, i- f-, ne, na+, mg2+ s2-, s, s6+
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A person standing 35 feet from a street light casts a shadow, as shown. What is the height "h" of th...
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