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 07:30
The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.
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Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments
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Chemistry, 22.06.2019 18:30
The table lists the lattice energies of some compounds.compoundlattice energy (kj/mol)lif –1,036licl –853naf –923kf –821nacl –786which statement about crystal lattice energy is best supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf.the lattice energy increases as the cations get larger, as shown by lif and licl.the lattice energy decreases as cations get smaller, as shown by nacl and naf.the lattice energy decreases as the cations get smaller, as shown by naf and kf.
Answers: 3
Chemistry, 22.06.2019 21:30
In science class richard learns that a substance has a boiling point of 230 fahrenheit his teacher ask him to convert this temperature to degrees celsius what is the boiling point of his substance in degrees celsius
Answers: 3
3. One modern use for copper-containing alloys such as brass are as doorknobs in hospitals and schoo...
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