Chemistry, 21.06.2021 21:30 mrsqueenbabe516
Marcus measured the masses and volumes of samples of four different substances, and he calculated their densities. The table shows Marcus’s measured and calculated values.
Substance Mass (g) Volume (cm3) Density (g/cm3)
aluminum 5.7 2.1 2.7
copper 14.4 1.6 9.0
iron 9.5 1.2 7.9
titanium 8.6 1.8 4.8
Answers: 1
Chemistry, 23.06.2019 03:30
27 drag each label to the correct location on the image. a particular exosolar system has five planets in total: a, b, c, d, and e. the table lists the orbital periods of these planets in days. planet orbital period (days) a 600 b 80 c 1,000 d 500 e 100 move each planet to its orbit in the system.
Answers: 3
Chemistry, 23.06.2019 06:40
The combustion of methane, ch4, releases 890.4kj/mol. that is, when one mole of methane is burned,890.4 kj are given off to the surroundings. this meansthat the products have 890.4 kj less than the reactants.thus, ah for the reaction = - 890.4 kj. a negative symbolforah indicates an exothermic reaction.ch (g) + 20 (g)> co2 (g) + 2 h0 (1); ah = - 890.4 kga) how much energy is given off when 2.00 mol of ch,are burned? b) how much energy is released when 22.4g of ch. areburned?
Answers: 1
Marcus measured the masses and volumes of samples of four different substances, and he calculated th...
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