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directions: write a c-e-r to justify whether the following properties of
te an argument: analyzing the properties of an element
iron is a metal with an atomic number of 26. it's melting
boiling point is 2861 degrees celsius. iron is lustrous (shin
an atomic number of 26. it's melting point is 1536 degrees celsius and its
iron is corroded or broken down by acids and rusts when exposi
egrees celsius. iron is lustrous (shiny), malleable and is a silver-grey color.
broken down by acids and rusts when exposed to water vapor. it is a good
conductor of heat and electricity.
1. make and justify a claim about whether iron being malleable is a physical or chemical property.

Covalent compounds: mastery test select the correct answer what is formed when atoms join together with a covalent bond? a. an ion b. a molecule c. a neutral atom d. a noble gas

If a straight-chain hydrocarbon is a gas at room temperature, how many carbon atoms will it have? a. 6 carbon atoms b. 12 carbon atoms c. 24 carbon atoms d. 3 carbon atoms

Will give imagine you are given a mystery element. it is, however, a discovered and known element. you may perform a maximum of two observations or tests to determine its identity. time and money is critical, so you need to prioritize your tests. if you can get by with a single test, you get 100 super-geek points from your research lab team. pick your two tests, number them as #1 and #2, and justify why you think these two will certainly be enough (and why the first might well be enough all by itself.) the available tests are classification into metal, non-metal, or metalloid, count of valence electrons, count of electron shells, atomic radius (error range: +/- 1 pm), electronegativity (error range: +/- 0.1), first ionization energy (error range: +/- 10 kj/mole), melting point (error range: +/- 10 c), and boiling point (error range: +/- 20 c).