Chemistry, 30.03.2021 02:00, noeminm105
3. One modern use for copper-containing alloys such as brass are as doorknobs in hospitals and schools. Copper has antimicrobial properties, which can help limit the spread of some bacteria and viruses on those fixtures. If a brass alloy was used which contains 59% copper by mass and 41% zinc by mass and each doorknob has a mass of 600 g, what is the limiting element and how many doorknobs can you make with 2930 g Cu and 1820 g Zn
Answers: 3
Chemistry, 22.06.2019 08:40, jaueuxsn
Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
Answers: 2
Chemistry, 22.06.2019 10:30, ashlpiriz123
Find the number of grams of hcl needed to react completely with .50 moles of magnesium.
Answers: 1
Chemistry, 23.06.2019 05:30, jalynholden07
Based on the formulas, select the compounds below that are covalent: kbr sif4 al2o3 co2 naco3 s7o2 pcl3 fe3n2 h2o s2f10
Answers: 3
3. One modern use for copper-containing alloys such as brass are as doorknobs in hospitals and schoo...
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Mathematics, 11.11.2019 04:31