Chemistry, 01.12.2021 19:20 victoriapellam04
While working on a chemistry handout, Saul and Jared disagree about
the following equation:
Na. CO.(s) + 2HCl(aq) - 2NaCl(aq) + H2O(0) + CO2(g).
Saul says the equation is perfectly balanced, but Jared disagrees, Jared
says that because one of the products is a gas (g), its mass can't be
added to the product side since it just floats away. Which student is
correct, and why?
Answers: 3
Chemistry, 22.06.2019 19:30
How might this scientific phenomena be explained? a paper clip floats on water.
Answers: 1
Chemistry, 22.06.2019 20:30
The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?
Answers: 3
Chemistry, 22.06.2019 21:30
Electromagnets coils of wire paper clips picked up 10 3 15 6 20 9 25 12 ms. owens' class was studying magnets. ms. owens showed her students how to make an electromagnet using a nail, a d-cell battery, and plastic coated wire. the students wrapped the wire around the nail and then attached the ends to the battery. when they were finished, they tested their magnets by investigating how many paperclips their magnets could pick up. they also tested whether they could increase the strength of their electromagnets by using more coils of wire. they recorded the class average of their results in the data table seen here. ms. owens asked her students to graph their data in a line graph. how should the students label the x-axis on their line graph? a) size of battery b) number of paper clips c) number of coils of wire d) strength of electromagnet
Answers: 2
Chemistry, 22.06.2019 21:30
The solid xy decomposes into gaseous x and y: xy(s) m x(g) + y(g) kp = 4.1 (at 0 °c) if the reaction is carried out in a 22.4 l container, which initial amounts of x and y will result in the formation of solid xy?
Answers: 1
While working on a chemistry handout, Saul and Jared disagree about
the following equation:
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