Which statements describe an element? Check all that apply.
A) An element is a pure subst...
Which statements describe an element? Check all that apply.
A) An element is a pure substance,
B) An element is made of only one type of atom,
C) An element is made of two or more different types of atoms.
D) An element can be broken down into a simpler form.
E) An element cannot be broken down into a simpler form,
Answers: 3
Chemistry, 21.06.2019 20:30
Which of the following true? a_volcanoes and earthquakes often near the plate boundaries. b_volcanoes occur whereve there are tall mountains. c_earthquakes cause volcanoes in the same location to erupt violently d_volcanoes and earthquakes occur only where plates are colliding with each other
Answers: 2
Chemistry, 22.06.2019 08:40
Which statement can best be concluded from the ideal gas law?
Answers: 2
Chemistry, 23.06.2019 10:50
Achemist reacted 57.50 grams of sodium metal with an excess amount of chlorine gas. the chemical reaction that occurred is shown. na + cl2 → nacl if the percentage yield of the reaction is 86%, what is the actual yield? show your work, including the use of stoichiometric calculations and conversion factors.
Answers: 1
Chemistry, 23.06.2019 12:30
If you reacted 450 g of trimethylgallium with 300 g of arsine, what mass of gaas could you make?
Answers: 1
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