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
Anon25 [30]
3 years ago
15

Please help fast

Chemistry
1 answer:
Andrews [41]3 years ago
5 0

Answer:  Change in energy

Explanation:  The only evidence provided in the experimental statement is that the "solution turns warm."  While the options include positive evidence of a chemical reaction, only "Change in energy" provides <u>both</u> evidence and correlation with an observation.

You might be interested in
1. If 500 ML of a 3 L sample of 0.20 M sodium chloride solution is spilled, what is the concentration of the remaining solution?
photoshop1234 [79]
D. 0.2 M

The concentration of a solution is basically the ratio of the solute present to the solvent in the solution. This is an intrinsic property, independent of the amount of solution that is present. A similar example is that of density. No matter the size of a sample, the density and concentration of that sample remain constant.
3 0
3 years ago
HELPP ASAPP..........
Ksivusya [100]

Answer:

A, C, D.

Explanation:

6 0
3 years ago
Read 2 more answers
The complete orbital notation diagram of an atom is shown.
Elan Coil [88]

values of the quantum numbers: -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6

location of the electron: In the 7th energy level away from the nucleus.

Explanation:

From the description of the problem, the magnetic number is given is as -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6 and the electron is located in the 7th energy level away from the nucleus. Basically, the problem is testing for the understanding of the principal quantum numbers which gives the location of electrons and the magnetic quantum number that shows the spatial orientation of the orbitals.

           The orbital designation of the describe electron is 7d

  1. Magnetic quantum number is limited by the azimuthal quantum number which is the quantum number describing the possible shapes. The azimuthal is given as L= n-1. "n" is the principal quantum number which is 7. Therefore L is 6 and the magnetic quantum numbers are -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6
  2. The position of the electron is given by the principal quantum number which represents the main energy level in which the orbital is located or the average distance from the nucleus. Here it is 7.

Learn more:

brainly.com/question/9288609

#learnwithBrainly

5 0
3 years ago
Arrange the elements in order of increasing ionization energy. Use the
UNO [17]

Answer:

Gallium, Phosphorus, Chlorine, Fluorine

Explanation:

Arrange the elements in order of increasing ionization energy. Use the periodic table to identify their positions on the table.

Drag each tile to the correct box.

Tiles

chlorinefluorinegalliumphosphorus

Sequence

5 0
3 years ago
Read 2 more answers
How much heat is required to change temperature of 10 g of water from 4 °C to 8 °C? (Water has a specific heat of 4.18 )?
Andrews [41]

Answer: 167.2 J

Explanation:

5 0
1 year ago
Other questions:
  • Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it
    6·1 answer
  • 2A1Cl3 + 3Na CO3→ Al2(CO3)3 + 6NaCl
    5·1 answer
  • What energy is a quarterback’s arm before throwing a pass
    14·2 answers
  • Isaac pour the remaining chemical into the sink and apparatus were left in the sink​
    11·2 answers
  • A 0.4647-g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in oxygen to yield 0.01962 mol of
    7·1 answer
  • Question 14(multiple choice worth 2 points) a student had a sample of pure water, and added an unknown substance to it. the stud
    10·1 answer
  • Paragraph to your girlfriend
    13·2 answers
  • If you are given the wavelength and speed of a wave, the formula you use to calculate the frequency is
    8·1 answer
  • Why do the aquatic plants not break down by water current?
    13·1 answer
  • True or false: A skeleton equation in chemistry shows the relative amounts of all materials in the reaction
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!