Answers: 2
Chemistry, 21.06.2019 23:30
Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.
Answers: 2
Chemistry, 22.06.2019 22:30
Which of the following is true about the speed of light? it depends on the wavelength.
Answers: 3
Chemistry, 23.06.2019 01:00
Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.
Answers: 1
Chemistry, 23.06.2019 07:00
Write a hypothesis that answers the lesson question, βwhile observing a chemical reaction, how can you tell which reactant is limiting? β hypothesis: if a substance is the limiting reactant, then . . because . .
Answers: 1
Which of the following is a corrects substitutive IUPAC name for a compound with the condensed formu...
Mathematics, 23.10.2020 01:01
Engineering, 23.10.2020 01:01
Biology, 23.10.2020 01:01
Mathematics, 23.10.2020 01:01
Spanish, 23.10.2020 01:01
Mathematics, 23.10.2020 01:01
Computers and Technology, 23.10.2020 01:01
Mathematics, 23.10.2020 01:01
English, 23.10.2020 01:01
Social Studies, 23.10.2020 01:01
Mathematics, 23.10.2020 01:01
Mathematics, 23.10.2020 01:01