. A mixture of two white solids is placed in a test tube, and the mass of the tube and its
contents is found to be 33.66g. The tube is stoppered, and the apparatus is arranged to
collect any gas produced. When the tube is gently heated, a gas is given off and its volume is
found to be 470,0cm'. After the reaction, the mass of the test tube and its contents is found
to be 33.16g
1) What is the mass of the gas collected?
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2) What is the density of the gas
collected?
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in

How many atoms are there in 5.70 mol of mg

[ou.03jthe pictures below show the wavelengths and intensities of electromagnetic radiations emitted by three stars, star 1, star 2, and star 3. intensity intensity- intensity- 1000 3500 6000 8500 11000 wavelength (a) star 1 1000 3500 6000 8500 11000 1000 3500 6000 8500 11000 wavelength (a) wavelength (a) star 2 star 3 which of these statements is correct about the color of the three stars? star 2 is white in color o star 2 is yellow in color star 1 and star 3 are yellow in color star 1 and star 3 are white in color

What prefix multiplier is appropriate for reporting a measurement of 5.57 ×10−5 m?