01/31/20

Karen measures the volume of gas at 200 K and 101.3 kPa. To correct her measurement to standard temperature and pressure (STP), what must she do?

Make a volume corrected based on a lower temp of 73KMake a volume correction based on a high temp of 273KMake a volume correction based on a higher pressure of 202kPaMake a volume corrections based... more
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01/30/20

3 KOH + H3PO4 → K3PO4 + 3 H2O The chemical reaction above produced 17.89 moles of water. How many moles of H3PO4 were used?
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01/29/20

Any element can always be identified by its: atomic mass number of neutrons number of protons atomic number
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01/28/20

A brand of cereal had 1.2 milligrams (mg) of iron per serving. Then they changed their recipe so they had 1.8 milligrams (mg) of iron per serving. What was percent increase in iron?
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01/28/20

what is an equivalent expression for 18p-36
i dont know how to di my math and need help as soon as possible
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01/27/20

Debbie is 5 years older than Susan. in 2 years, Susan will be half the age of Debbie. How old is Susan now?
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01/27/20

If Mandy walks 1/4 mile in 3.75 minutes, how far will she walk in 1/2 hour?

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