Answers by Chris Tophski
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Answers by Chris Tophski

Answers by Chris Tophski
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Nitrogen effuses through a pinhole 1.7 times as fast as another gaseous element under the same conditions. Estimate the other element’s molar mass and determine its probable identity.
answered Nov 15, 2023
5 votes
158k views
How do you create depth on a piece of paper? A. Create a foreground, mid-ground, background B. All answers apply C. Use a variety of sizes D. Overlap
answered Aug 26, 2023
4 votes
147k views
PLEASE HELP MEE I DONT UNDERSTAND
answered Aug 22, 2023
6 votes
233k views
Please help me! I don’t understand the guided reading questions at all.
answered Apr 18, 2023
12 votes
37.2k views
Can someone plz help me ?
answered Dec 2, 2022
5 votes
224k views
2 H2O2-> 2H20+02 2. What are the reactants in this reaction? 3. What are the products in this reaction? 4. What happened in this particular reaction? What happens in general decomposition reaction?
answered Nov 29, 2022
0 votes
129k views
QUESTION 11 Identify the reaction type. KOH + HNO3 -> H2O + KNO3 O combustion O decomposition O combination O single displacement O double displacement
answered Sep 19, 2022
2 votes
58.7k views
Please help will mark brainpower pic below
answered Jun 7, 2022
12 votes
117k views
What was the area connecting Asia and North America called? *. A peninsula A land bridge O A causeway
answered Mar 28, 2022
4 votes
58.0k views
Someone help me plz!!!!!!!​
answered Feb 27, 2022
3 votes
170k views
Stephanie is writing a report about the influence of Hinduism on the Western world. Read this sentence from her introduction: The influence of Hinduism can be seen in many Western practices, such as yoga,
answered Feb 17, 2022
4 votes
230k views
Find the probability of drawing a white ball from a bag containing 4 white and 6 black balls.
answered Nov 18, 2021
4 votes
112k views
Everybody in Great Britain prefers Monarchies True False
answered Oct 26, 2021
1 vote
53.8k views
What are the side lengths of the scaled copy of a rectangle that is 2 inches by 3 inches?
answered Aug 30, 2021
2 votes
208k views
I need help with conjugations with Spanish on estar and ser ​
answered Aug 30, 2021
6 votes
138k views
Using the numbers 8, 6, 4, and 2 write an expression that equals 20 without changing the order of numbers
answered Jun 12, 2021
3 votes
163k views
What is not a unique anatomical feature of mammals that can be recognized in the fossil record?
answered Apr 21, 2021
4 votes
42.0k views
The minerals we need come from the Earth's crust. Explain why we don't have to eat rocks to get the minerals we need. ​
answered Mar 9, 2021
5 votes
43.1k views
Your eye color, sex, and hair color are all determined by the DNA in your genes. Where are these genes located?
answered Feb 24, 2021
3 votes
144k views
Which name accurately describes the figure shown below and why? A 4-sided figure with 2 parallel sides, 2 right angles, and 2 non-congruent sides. parallelogram, because the figure has two pairs of parallel
answered Jan 17, 2021
4 votes
20.8k views
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