Mathematics, 12.05.2021 21:30 supersiblings03
An atom consists of electrons, protons, and neutrons. Each electron has a charge of -1, each proton has a charge of +1, and each neutron has no charge. If 3 electrons are removed from each of 4 atoms, what is the combined net change to the charge of the 4 atoms? Complete the steps below to solve this problem and others like it. Part A Three electrons are removed from each of 4 atoms. Write an expression to represent the net change on the charge for the group of atoms. Part B Simplify the expression obtained in part A and explain what the answer represents. Part C Here’s a similar problem. Write an expression for the net change in charge if two electrons are added to each of six atoms in a group. Also, write an expression that represents removing two protons each from a group of six atoms. Part D Simplify the two expressions in part C. Part E How are the two products in part D related?Part F Think about multiplying any two rational numbers. Based on this activity and your previous work, write a set of rules for finding the sign of the product based on the sign of the two numbers being multiplied.
Answers: 2
Mathematics, 21.06.2019 15:00, vnzgirl
1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.
Answers: 1
Mathematics, 21.06.2019 20:00, carligreen090
Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.
Answers: 1
An atom consists of electrons, protons, and neutrons. Each electron has a charge of -1, each proton...
History, 12.02.2021 01:00
English, 12.02.2021 01:00
Mathematics, 12.02.2021 01:00
Biology, 12.02.2021 01:00