1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
schepotkina [342]
3 years ago
13

Use this paragraph Carlon is using two wooden blocks to model the movement of Earth's plates He pushes one block forward and the

other block backward, rubbing their surfaces together Which Earth feature is he modeling?
A. thrust fault
B. normal fault
C. rift valley
D. sitiko-slip fault​
Chemistry
1 answer:
tensa zangetsu [6.8K]3 years ago
6 0

Answer:

a

Explanation:

You might be interested in
The decomposition of potassium chlorate into kcl & o2 is used as a source of oxygen in the laboratory. How many moles of pot
fredd [130]

Answer:

10moles of kcl

Explanation:

2 K C l O3 →  2 K C l  +  3 O 2

Notice that you have a  2 : 3  mole ratio between potassium chlorate and oxygen gas, which means that, regardless of how many moles of the former react, you'll always produce 2/3 times more moles of the latter.

15 mol of O2 * ((2mol of KCLO3)/(3mol of O2))= 15*2/3=10 Mol

5 0
4 years ago
There are two naturally occurring isotopes of copper. 63cu has a mass of 62.9296 amu. 65cu has a mass of 64.9278 amu. determine
SSSSS [86.1K]
1) You need to use the atomic mass of copper.


You can find it in a periodic table. It is 63.546 amu.


2) The atomic mass is the weigthed mass of the different isotopes.


This is, the atomic mass of one element is the atomic mass of each isotope times its corresponding abundance:


=> atomic mass of the element = abundance isotope 1 * atomic mass isotope 1 + abundance isotope 2 *  atomic mass isotope 2 + ....+abundance isotope n * atomic mass isotope n.


3) The statement tells there are two isotopes so the abundance of one is x and the abundance of the other is 1 - x


=> 63.546 amu = x * 62.9296 amu + (1-x)*64.9278


=> 63.546 = 62.9296x + 64.9278 - 64.9278x


=> 64.9278x - 62.9296 = 64.9278 - 63.546


=> 1.9982x = 1.3818


=> x = 1.3818 / 1.9982 = 0.6915 = 69.15%


=> 1 - x = 1 - 0.6915 = 0.3085 = 30.85%


Answer:


Cu-63 69.15%;


Cu-65 : 30.85%
3 0
3 years ago
A sample of gas is held at constant pressure. Increasing the Kelvin temperature of this gas sample causes the average kinetic en
garik1379 [7]
Increasing the temperature of a gas sample means that heat energy is been supplied to the System. When energy is been supplied heat energy is transformed into kinetic energy of the gas molecules.
Therefore kelvin temperature increases means more energy given to the system therefore average kinetic energy of molecules increase.
When the kinetic energy of molecules increase they move about more and take up more space. Hence volume too increases.
Therefore the correct answer is
4) average kinetic energy of molecules increase and volume of the gas sample increases
5 0
3 years ago
Read 2 more answers
In which situation is no work considered to be done by a force?
Elena L [17]
Work is done when the application of a force causes movement of an object in the direction of the force.
If there is no movement of the object or the object does not move in the direction of the force then work is not done.
6 0
3 years ago
All methods of chromatography operate on the same basic principle that Select one: a. one component of the mixture will chemical
ANEK [815]

Answer:C

Explanation:

Chromatography separates compounds by taking advantage of their polarity. The stationary phase is generally very polar. The mobile phase can be pure hexane or various ratios of hexane with a polar eluent added. The more polar the compound, the more it interacts with the stationary phase and won’t move very far up the plate compared to the non-polar or less polar compounds that interact more with the non-polar hexane.

8 0
3 years ago
Other questions:
  • Using the Bohr model, determine the lowest possible energy, in joules, for the electron in the Li2+ ion.
    10·1 answer
  • How many grams of barium sulfate, baso4, are produced if 25.34 ml of 0.113 m bacl2 completely react given the reaction: bacl2 +
    6·2 answers
  • A gas is at a pressure of 4.30 atm. what is this pressure in kilopascals? in mm hg?
    11·2 answers
  • How to tell if an equation is exothermic or endothermic?
    10·1 answer
  • Describe seven characteristics of metals. please helppp
    9·1 answer
  • Lab: Titration Assignment: Lab Report<br> I need the answer to the graph on the last page.
    14·1 answer
  • 12. Electrons in the first energy level have the least amount of energy.
    10·1 answer
  • As the moon orbits the ______________, its gravitational pull is______________ on the side of the earth closest to the _________
    14·1 answer
  • Describe the relationship between kinetic energy and speed, and give an example of how changing an object’s speed would affect i
    5·1 answer
  • A. Element X has a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!