During an experiment, iron powder and sulfur powder were mixed thoroughly and placed on a filter paper. When a magnet was moved below the filter paper, the iron fillings stood up vertically as they were attracted by the magnet. The sulfur powder showed no change in position. Which of the following correctly justifies the observation? (4 points)
Group of answer choices
Iron and sulfur formed a compound; therefore, they lost their individual properties.
Iron and sulfur formed a compound; therefore, they retained their individual properties.
Iron powder and sulfur powder combined physically; therefore, they lost their individual properties.
Iron powder and sulfur powder combined physically; therefore, they retained their individual properties.
Answers: 2
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The table lists the lattice energies of some compounds. compoundlattice energy (kj/mol)lif β1,036licl β853naf β923kf β821nacl β786which 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
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Which correctly identifies the parts of a transverse wave? a: crest b: amplitude c: wavelength d: trough a: trough b: amplitude c: crest d: wavelength a: trough b: amplitude c: wavelength d: crest a: crest b: amplitude c: trough d: wavelength
Answers: 1
During an experiment, iron powder and sulfur powder were mixed thoroughly and placed on a filter pap...
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