Chemistry, 16.07.2019 11:50 savannabroyhill24
Which chemical equation shows that the total mass during a chemical reaction stays the same? a) mg + cl2 → mgcl2 b) naoh + mgcl2 → nacl + mgoh c) 2na + 2h2o → naoh + h2 d) h2o + o2 → h2o
Answers: 2
Chemistry, 22.06.2019 01:30
Aroller coaster car is traveling down a track at 22 m/s. the car has a mass of 2000 kg. what is the kinetic energy of the car? a) 22,000 j b) 968,000 j c) 484,000 j d) 44,000 j
Answers: 2
Chemistry, 22.06.2019 23:30
The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is 1.0 g/cm3. a large increase in pressure will a. lower the freezing point b. raise the freezing point c. lower the boiling point d. raise the triple point e. lower the triple point
Answers: 1
Which chemical equation shows that the total mass during a chemical reaction stays the same? a) mg...
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