Answers by Tom Walters
Register

Answers by Tom Walters

Answers by Tom Walters
Filter
For an alloy that consists of 93.1 g copper, 111.7 g zinc, and 4.0 g lead, what are the concentrations of (a) Cu, (b) Zn, and (c) Pb in weight percent? The atomic weights of Cu, Zn, and Pb are 63.54, 65.
answered Dec 29, 2020
1 vote
41.4k views
When simplifying a^2+3a over a^3-2a^2-15a, what are the term(s) that can be cancelled
answered Sep 28, 2020
7 votes
49.7k views
Which group on people are vulnerable?
answered May 10, 2020
2 votes
49.0k views
What is the mass of oxygen in an oxygen tank at 20C if the tank has a volume of 0.20 m3 and the oxygen pressure in the tank is 4.0105 N/m2 (mass of one mole of one mole of oxygen is 16 g and the universal
answered Mar 24, 2020
1 vote
232k views
Simplafy the equation 7x-3+4x+5
answered Feb 16, 2020
4 votes
119k views
Hey can you please help me posted picture of question
answered Dec 25, 2019
6 votes
20.8k views
Read the question. In what ways are you a friend to the environment every day? This is an example of what type of question? author and you right there think and search on your own
answered Sep 12, 2019
1 vote
109k views
Which of the following applies to the political machines?
answered Aug 2, 2019
5 votes
194k views
Please help! 11 pts. Triangle ABC is formed by the three squares X, Y, and Z: A right triangle ABC is shown. On the side AB of this triangle is a square. Inside the square is written Square X, and below
answered Apr 28, 2019
2 votes
24.0k views
I need help !!30 PTS!! Pls DO help on ALL 3 on the screenshot
answered Jan 23, 2019
3 votes
88.9k views
Ellen and Michelle scored 48% of their teams points. If their team has a total of 50 points, how many points did they score ? explain What is 48% of 50 ? ☺
answered Jan 2, 2019
4 votes
142k views
Charlene made the sketch below in order to find the height x of a pole. She positioned a mirror on the ground so that she could see the reflection of the top of the pole. Her height, her distance from
answered Dec 29, 2018
6 votes
227k views
In a student government election, 6 seniors, 2 juniors, and 3 sophomores are running for election. Students elect four at-large senators. In how many ways can this be done?
answered Sep 16, 2018
6 votes
183 views
What is the length of side PQ?
answered Aug 26, 2018
2 votes
145k views
Find the value of x, which makes the area of this triangle equal 72.
answered May 13, 2018
3 votes
200k views
After three half-lives of an isotope, 1 billion (one-eighth) of the original isotope's atoms still remain in a certain amount of this element. How many atoms of the daughter product would you expect to
answered Apr 28, 2018
7 votes
210k views
Viruses have the ability to infect a specific type of cell because they recognize
answered Apr 10, 2018
0 votes
194k views
Why are most finches which normally eat seeds unable to eat flower nectar like hummingbirds 1Flowers in finches' environments do not produce nectar. 2Most finches' beaks are too long and narrow to collect
answered Apr 10, 2018
2 votes
48.5k views
The normal curve would represent the distribution of
answered Feb 27, 2018
4 votes
194k views
Whether you intentionally or inadvertently use someone else's words and thoughts, the outcome is that another author's ideas emerge as your own. In this sentence, the word inadvertently means: a. by writing
answered Sep 9, 2017
3 votes
142k views
Page:
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers