XZXZ2T AS
A Styrofoam cup containing 150.0 g of water started at 22.0°C. A
50.0 g sample of...
Chemistry, 20.04.2021 17:40, missheather0309
XZXZ2T AS
A Styrofoam cup containing 150.0 g of water started at 22.0°C. A
50.0 g sample of metal at 90°C was added to the Styrofoam cup, and
the temperature increased to 28.5°C. What is the specific heat of the
unknown metal? (water has a specific heat of 4.18 J/gC)
Answers: 2
Chemistry, 22.06.2019 02:10, vapelordcarl69
When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)
Answers: 3
Chemistry, 22.06.2019 07:00, maryjane8872
Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils
Answers: 1
Chemistry, 23.06.2019 01:00, only1cache
Which is true concerning the products and reactants of photosynthesis and cellular respiration? a. the products of photosynthesis are sugars and the reactants of cellular respiration are starches. b. the products of photosynthesis are reactants in cellular respiration. c. oxygen is needed for photosynthesis and is given off in cellular respiration.
Answers: 2
History, 26.04.2020 00:51
Chemistry, 26.04.2020 00:51
Spanish, 26.04.2020 00:52
Chemistry, 26.04.2020 00:52