Chemistry, 24.08.2021 23:10 johnandashley5p65r4a
After researching the rock they found, Mary and Jim believe it contains large pieces of the mineral limonite. They observed that their rock was yellow in color. And, according to the data they gathered, limonite is also yellow. They plan to conduct an investigation using the scientific method. What is Mary and Jim’s hypothesis?
Answers: 3
Chemistry, 22.06.2019 12:00, sophiaa23
Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
Answers: 2
Chemistry, 22.06.2019 16:10, nauticatyson9
Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?
Answers: 1
Chemistry, 23.06.2019 00:00, maronetham6253
What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?
Answers: 2
After researching the rock they found, Mary and Jim believe it contains large pieces of the mineral...
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