Chemistry, 18.03.2021 03:30 leyslebravo2729
Amy uses a piece of lab equipment to change electrical energy into thermal energy. What did she most likey do?
A. Warmed liquid in a test tube over a candle flame
B. Used a hot plate to boil a beaker of water
C. Mixed two chemicals to produce heat
D. Used a thermometer to measure the temperature of ice water
Answers: 3
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 18:50, cj31150631
Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.
Answers: 1
Chemistry, 22.06.2019 19:30, simihehe
Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons
Answers: 2
Amy uses a piece of lab equipment to change electrical energy into thermal energy. What did she most...
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