Chemistry, 25.04.2020 09:49 kayelynn003
A reaction occurs when solid X is placed into solution Y. As a result, the temperature of the new solution increases by 3°C. The temperature rises another 2°C when more of solid X is added to the solution. What does this indicate about the effect of adding more solid?
A.) It increased the number of molecular collisions.
B.) It decreased the number of molecular collisions.
C.) It decreased the space between the molecules and lowered the reaction rate.
D.) It increased the space between the molecules and increased the reaction rate.
Answers: 2
Chemistry, 22.06.2019 00:30
Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants
Answers: 1
Chemistry, 22.06.2019 05:30
The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland
Answers: 1
Chemistry, 22.06.2019 12:00
Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.
Answers: 3
Chemistry, 22.06.2019 14:10
13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.
Answers: 1
A reaction occurs when solid X is placed into solution Y. As a result, the temperature of the new so...
History, 17.03.2020 04:35
Mathematics, 17.03.2020 04:35
English, 17.03.2020 04:35
Mathematics, 17.03.2020 04:35
History, 17.03.2020 04:35
Mathematics, 17.03.2020 04:35
Computers and Technology, 17.03.2020 04:35
Mathematics, 17.03.2020 04:35