Chemistry, 17.12.2020 16:40 TheOneandOnly003
Flour is a white solid that burns and does not dissolve in water. Sugar is a white solid that dissolves in water and will turn brown and give off a sweet odor when heated. A student finds an unlabeled container in the kitchen that is either flour or sugar. Describe a procedure that they could follow to identify the substance and explain how the student could use the properties of the substance to identify it. (Science)
Answers: 3
Chemistry, 21.06.2019 17:40
What are the resulting coefficients when you balance the chemical equation for the combustion of ethane, c2h6? in this reaction, ethane is burned in the presence of oxygen (o2) to form carbon dioxide (co2) and water (h2o). (g)+(g)→(g)+(g)
Answers: 1
Chemistry, 22.06.2019 05:00
1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false
Answers: 3
Chemistry, 22.06.2019 08:30
What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots
Answers: 3
Flour is a white solid that burns and does not dissolve in water. Sugar is a white solid that dissol...
Mathematics, 03.03.2021 02:10
History, 03.03.2021 02:10
Mathematics, 03.03.2021 02:10
Physics, 03.03.2021 02:10
Mathematics, 03.03.2021 02:10
Mathematics, 03.03.2021 02:10
Mathematics, 03.03.2021 02:10
Mathematics, 03.03.2021 02:10
Mathematics, 03.03.2021 02:10