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A mixture of c2h2 and ch4 has a total mass of 230.9 g. when this mixture reacts completely with excess oxygen, the co2 and h2o products have a combined mass of 972.7 g. what mass of ch4 was present in
answered
Jul 1, 2019
Chemistry
college
3
votes
77.6k
views
How is a seismograph similar to an X-ray?
answered
Mar 16, 2019
Physics
high-school
4
votes
223k
views
How to put six thousand fifty four in standard form
answered
Mar 9, 2019
Mathematics
middle-school
4
votes
197k
views
How did John Brown retaliate when Border Ruffians raided the antislavery town of Lawrence, Kansas by pillaging homes, burning down buildings and destroying the local newspapers?
answered
Dec 15, 2018
History
college
3
votes
108k
views
What is equal to 7(3.5×10^4) written in scientific notation
answered
May 6, 2018
Mathematics
high-school
5
votes
160k
views
The product of two consecutive integers is three less than three times their sum. Find the integers
answered
Apr 8, 2018
Mathematics
high-school
4
votes
217k
views
Which of the following groups did Millard Fillmore, the last Whig president, anger?
answered
Mar 16, 2018
History
high-school
0
votes
48.4k
views
One way in which the Vedas the bible and the Koran are similar is that these books
answered
Feb 6, 2018
Social Studies
college
1
vote
158k
views
What is a deductible in relation to insurance
answered
Jul 27, 2017
Health
high-school
1
vote
94.6k
views
A substance has a mass of 360 g and a volume of 7.5 cm3. What is its density?. a.. 2700 g/cm3. c.. 480 g/cm3. b.. 270 g/cm3. d.. 48 g/cm3.
answered
May 20, 2017
Chemistry
high-school
7
votes
54.5k
views
2. Suppose that the diameters of different types of hairs are 1.7x 10^-4cm, 1.4 x 10^-3cm, 1.2 x 10^-5cm, and 1.9 x 10^-4cm? What is the order of the hairs from least to greatest diameters? (1 point)
answered
Feb 18, 2017
Mathematics
high-school
7
votes
228k
views
An electric iron operates on a 120-volt outlet and uses 2.30 amps of current. How much power does the iron use? A. 0.019 watts B. 276 watts C. 52 watts D. 630 watts
answered
Jan 18, 2017
Physics
high-school
0
votes
118k
views
While doing research for a thesis paper about how human migration and population distribution can greatly alter or destroy the natural landscape, you come across an article discussing American settlers
answered
May 4, 2016
History
high-school
5
votes
220k
views
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