Answers by Steven Siew
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Answers by Steven Siew

Answers by Steven Siew
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The mass of Carbon is 12 g/mol and the mass of oxygen is 16 g/mol. What is the approximate percent composition by mass of CO2 (formula mass = 44)? 20% carbon and 80% oxygen 23% carbon and 77% oxygen 25%
answered Feb 23, 2021
4 votes
191k views
Subtract: (5x-3t-7)-(x-2t-3)
answered Nov 27, 2020
6 votes
212k views
Help please !!! If f(x)=3x-1 and g(x) = x + 2 , find ( f +g ) (x)
answered Oct 17, 2020
2 votes
15.6k views
Kristin has 3 2/3 yards of plaid ribbon. She has 2 5/6 yards of polka - dot ribbon. Estimate how many yards of ribbon Kristin has in all. Explain how you know your estimate is reasonable.
answered Jul 24, 2020
6 votes
218k views
What is the cube root of -729a^9b^6?
answered Jul 23, 2020
3 votes
198k views
Please help me out with this
answered Mar 28, 2020
6 votes
87.6k views
What has Abel fields argued in his case before the Supreme Court?
answered Feb 18, 2020
6 votes
48.0k views
All video games are on sale at The Game House for $29 each. How much will Bella pay for 3 video games?
answered Dec 28, 2019
4 votes
115k views
The virus that causes mumps in humans is composed of a protein outer shell containing a core of DNA. The virus that causes the flu in humans is composed of a protein outer shell containing a core of RNA.
answered Dec 14, 2019
1 vote
162k views
1. find the value of c in the equation a^b(3a^b)c= 243a^6b a. 2 b. 4 c. 5 d. 8 2. Select the expression that is equivalent to 6a^-4(3b^8) over 3a^3b^2 a. 3b^5/a^4 b. b^8/3^a c. 6b^6/a^7 d. b^3/6a^4
answered Dec 7, 2019
2 votes
139k views
A factor that can vary among people taking part in an experimental study is known as a sample. survey. variable. theory.
answered Jul 9, 2019
3 votes
50.4k views
Which process takes place when large rocks crumble due to oxidation?
answered Jun 6, 2019
6 votes
50.5k views
How do elements reach stability?
answered May 10, 2019
2 votes
76.6k views
A pole casts a shadow 20 feet long . Anothe pole 3 feet high cast a shadow 5 feet long. If the heights and shadows are in proportion, how high is the first pole?
answered May 14, 2018
3 votes
163k views
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