subject
Chemistry, 15.01.2020 07:31 4300402428

Periodic table
copper (cu) is often used for electrical wiring and
cooking pans. however, irorl (fe) is much more
common on earth than copper. why might copper
be used instead of iron, if iron is easier to obtain?
a link to the periodic table has been provided for
your use.

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 21.06.2019 22:20
Asolution is made by dissolving 25.5 grams of glucose (c6h12o6) in 398 grams of water. what is the freezing point depression of the solvent if the freezing point constant is -1.86 °c/m? show all of the work needed to solve this problem.
Answers: 1
question
Chemistry, 22.06.2019 12:40
When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign
Answers: 2
question
Chemistry, 22.06.2019 13:30
Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?
Answers: 1
question
Chemistry, 22.06.2019 20:00
I’m an electrically neutral atomic any element, there are equal numbers of
Answers: 2
You know the right answer?
Periodic table
copper (cu) is often used for electrical wiring and
cooking pans. however...
Questions
question
Mathematics, 05.05.2020 13:47
question
Mathematics, 05.05.2020 13:47
question
Geography, 05.05.2020 13:47
Questions on the website: 13722367