Raul wanted to see if Jiffy Pop or Von's brand popcorn left fewer
unpopped kernels. He poured...
Raul wanted to see if Jiffy Pop or Von's brand popcorn left fewer
unpopped kernels. He poured some of each type of popcorn into two
different types of pans containing oil. He popped the corn for three
minutes each. He then recorded the number of unpopped kernels in
each pan.
a. What were Raul's variables?
b. What were Raul's controls?
c. List two parts to Raul's experimental design that were planned correctly.
d. How might Raul have improved his experimental
design?
Answers: 2
Chemistry, 21.06.2019 19:00
Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.
Answers: 2
Chemistry, 22.06.2019 10:00
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ā co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) ā co2(g) k=1.363Ć10^69 b. 2 h2(g) + o2(g) ā 2 h2o(g) k=1.389Ć10^80 c. 2co(g) + o2 (g) ā 2 co2(g) k=1.477Ć10^90
Answers: 1
Chemistry, 22.06.2019 14:10
16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.
Answers: 2
Mathematics, 05.08.2020 16:01
Mathematics, 05.08.2020 16:01
Social Studies, 05.08.2020 16:01