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
adelina 88 [10]
2 years ago
15

Which of the following is a pure substance?

Chemistry
1 answer:
Mazyrski [523]2 years ago
8 0

Answer:

1. B

2. 100 C

3.  C

4. D

5. D

Explanation:

You might be interested in
How many valence electrons does a carbon atom have
KATRIN_1 [288]
4.
__________________
4 0
3 years ago
Read 2 more answers
State the difference between sugar in water and pebbles in water
Usimov [2.4K]
Sugar is made of molecules that are bonded together based on the positively and negatively charged areas.  They will slowly dissolve in water.  Pebbles are solids.  They will sit in water for a long time.  Though shale pebbles will break apart or fall apart.
6 0
3 years ago
Name the substance that makes up fats
Eduardwww [97]
Carbohydrates is the substance that makes up fats
8 0
3 years ago
What are some sources of non-point source water pollution?
kirza4 [7]

Answer:

Explanation:

Excess fertilizers, herbicides and insecticides from agricultural lands and residential areas.

Oil, grease and toxic chemicals from urban runoff and energy production.

Sediment from improperly managed construction sites, crop and forest lands, and eroding streambanks.

3 0
3 years ago
Read 2 more answers
What is a possible quantum number set for an electron in the 2s orbital of a beryllium (Be) atom?
Artist 52 [7]

Answer is: 2,0,0,±1/2.

1) n = 1. The principal quantum number (n) is one of four quantum numbers which are assigned to each electron in an atom to describe that electron's state.

2) l = 0. The azimuthal quantum number is a quantum number for an atomic orbital that determines its orbital angular momentum and describes the shape of the orbital.

3) ml = 0. Magnetic quantum number specify orientation of electrons in magnetic field and number of electron states (orbitals) in subshells.

Magnetic quantum number (ml) specifies the orientation in space of an orbital of a given energy and shape . Magnetic quantum number divides the subshell into individual orbitals which hold the electrons, there are 2l+1 orbitals in each subshell.  

4) The spin quantum number, ms, is the spin of the electron; ms = +1/2 or -1/2.

7 0
3 years ago
Other questions:
  • PLEASE AWNSER THIS ASAP!!! 100points! i will give brainliest please awnser right!!!
    13·2 answers
  • The science of the creation of maps and charts is called
    7·1 answer
  • What type of energy transformation takes place during cellular respiration? Use complete sentences to explain how energy is cons
    8·2 answers
  • You are given an unknown type of clothing dye. How could you use the procedures in this lab to see if this dye is a mixture? Ple
    12·1 answer
  • What atom has 19 protons and 20 neutrons
    8·2 answers
  • sodium chloride solution can be electrolyzed in the laboratory. Describe what you would see ta the negative electrode
    6·1 answer
  • An object has a mass of 48g and it has a height of 5cm, a width of 2cm and a length of 5cm.
    6·1 answer
  • . When a person weighs himself in pounds, which system of measurement is he using?
    15·1 answer
  • What can experiments in a lab tell us about substances on Titan?
    11·1 answer
  • PLS HELP QUICK ALOTTT OF POINTS
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!