Physics, 01.09.2020 04:01 janiyagoldsmith
Cora wants to draw a model of an atom for her project for the science fair. She wants to draw an atom that has two protons, four neutrons, and two electrons. Which model is like Cora’s?
At the center, 2 unmarked red balls are interspersed with 4 blue balls marked with plus signs. A green cloud with 1 concentric white line surrounds the center, with 2 small green balls marked with minus signs on the white line.
At the center, 4 unmarked red balls are interspersed with 2 blue balls marked with plus signs. A green cloud with 1 white line surrounds the center, with 2 small green balls marked with minus signs on the white line.
At the center, 2 unmarked red balls are interspersed with 2 blue balls marked with plus signs. A green cloud with 1 white line surrounds the center, with 4 small green balls marked with minus signs on the white line.
At the center, 4 unmarked red balls are interspersed with 2 blue balls marked with plus signs. A green cloud with 1 white line surrounds the center, with 4 small green balls marked with minus signs on the white line.
Answers: 3
Physics, 22.06.2019 18:50
An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?
Answers: 2
Physics, 22.06.2019 23:30
Sound travels slower in colder air that it does in warmer air. make a claim about the effect of air temperature on the speed of sound. support your claim with evidence
Answers: 3
Cora wants to draw a model of an atom for her project for the science fair. She wants to draw an ato...
Computers and Technology, 27.09.2019 22:00
History, 27.09.2019 22:00
Arts, 27.09.2019 22:00
Computers and Technology, 27.09.2019 22:00
Social Studies, 27.09.2019 22:00
Biology, 27.09.2019 22:00
Social Studies, 27.09.2019 22:00
Mathematics, 27.09.2019 22:00
History, 27.09.2019 22:00
Mathematics, 27.09.2019 22:00
Biology, 27.09.2019 22:00