Chemistry, 08.12.2020 14:00 maskoffvon
In track races, especially the longer races, the runners start staggered, which means that they each start at their own starting point, not at the beginning race. This is to make sure that each runner is running the same distance. If the runner in the second lane begins 7 m ahead of the first runner and runs to the 407 m mark and takes 50.0 seconds, what is the runner's speed?
Answers: 2
Chemistry, 22.06.2019 03:00
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
Answers: 1
Chemistry, 22.06.2019 08:00
An observation that requires measurement is called quantitative observable or qualitative
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Chemistry, 22.06.2019 17:30
A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159
Answers: 2
In track races, especially the longer races, the runners start staggered, which means that they each...
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