Chemistry, 11.03.2021 16:30 prettygirllniyiaa
Choose the terms that correctly complete the paragraph.
Emily was interested in how geologists date rocks and she learned about two ways of dating rocks. She learned that potassium-40 is used to find the
Choose...
for ancient rocks, because it has a long
Choose...
. Carbon-14 is used for dating much
Choose...
rocks due to its shorter
Choose...
.
Answers: 1
Chemistry, 22.06.2019 17:50, kaylamount
Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?
Answers: 2
Chemistry, 22.06.2019 18:00, jalenclarke25
What volume would 2.25 moles of ne has occupy at stp?
Answers: 1
Chemistry, 22.06.2019 18:00, LuvieAnn1886
How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.
Answers: 3
Chemistry, 22.06.2019 21:30, liamgreene90
In one or two grammatically correct sentences, write a definition for the term molecule geometry
Answers: 3
Choose the terms that correctly complete the paragraph.
Emily was interested in how geologists date...
Mathematics, 02.03.2021 17:50
History, 02.03.2021 17:50
Mathematics, 02.03.2021 17:50
History, 02.03.2021 17:50
Mathematics, 02.03.2021 17:50
Biology, 02.03.2021 17:50