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
mr Goodwill [35]
2 years ago
12

Which of the following phenomena would be associated with the Big Bang theory.

Chemistry
1 answer:
Murrr4er [49]2 years ago
3 0

Answer: justin

Explanation:

It is becasue im rich right

You might be interested in
What is the final product of transcription?
Alenkasestr [34]

Answer:

C

Explanation:

The final product is an RNA molecule.

7 0
3 years ago
Does seeing a gas produced always mean a chemical reaction is occurring? Explain.
chubhunter [2.5K]
Seeing signs of a chemical reaction does not always mean that a reaction is happening. For example, a gas (water vapor) is given off when water boils. ... You can tell that it is a physical change because water vapor can condense to form liquid water. In a chemical change, a new substance must be produced.
4 0
2 years ago
Read 2 more answers
I don’t understand how to find these please help
ddd [48]

Answer:

8 shared electrons

Explanation:

When you are looking for the number of shared electrons via the equation:

S = N-A

Where:

S = means the shared electrons

N = Needed electrons

A = available electrons

"Needed electrons" means how many electrons does it need to have a noble gas configuration, in this case, to complete the octet rule.

"Available electrons" means how many valence electrons is actually available considering the compound or the elements involved in the compound.

To get the needed electrons, treat the elements involved separately.  We have a silicon (Si) atom and 4 chlorine (chlorine) atoms in this compound. Let's list it down first:

              Number of atoms

Si                      1

Cl                     4

Next step is to determine how many electrons should it have in its outer shell to achieve the octet rule. Both of them in this case would be 8. Multiply that by the number of atoms and add up the needed electrons to determine how many you will need for this particular compound.

        <u>      Number of atoms             Electrons to achieve Octet       Needed</u>

Si                      1                      x                         8                           =       8

Cl                     4                      x                         8                           = <u>     32</u>

                                                                     TOTAL:                              40

This is now our N. N = 40 electrons

Next step is to determine how many we actually have. Your clue in determining how many valence electrons the atom has is the group. Silicon is in Group 4A, this means it has 4 valence electrons. Chlorine is in Group7A, so ths means it has 7 valence electrons.

So first we write the number of atoms again, then in the next column, you write down the actual number of valence electrons and multiply them. Sum it up to see how many electrons available  in this particular compound.

        <u>      Number of atoms             Valence electrons                 Available</u>

Si                      1                      x                         4                           =      4

Cl                     4                      x                         7                          = <u>     28</u>

                                                                     TOTAL:                              32

This is now our A. A = 32 electrons

Now we apply this:

S = N - A

N = 40 electrons

A =  32 electrons

S = 40 - 32 = 8

Number of shared electrons is 8

5 0
3 years ago
Chose the element pairings that are likely to react with each other<br> Na and K or Na and Br
kaheart [24]

Answer:

Na k

Explanation:

because na is a metal and potassium is also a metal and both are active metal so is less likely to react as no bond is formed between them

7 0
3 years ago
What do you think is meant by the statement "the digestive system is very different
Kryger [21]
It could possibly refer to “the small intestines absorb most of the nutrients in food, and your circulatory system passes them on to other parts of your body to store or use. Special cells help absorbed nutrients cross intestinal lining into your bloodstream” hope this helps Good luck
7 0
3 years ago
Other questions:
  • Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction: 4 SO3(g) → 4 S(s) + 6 O2(g) ΔH°
    8·1 answer
  • Which wave corresponds to the higher-energy radiation? which wave corresponds to the higher-energy radiation? wave (b) has the h
    8·1 answer
  • Q#1 Give a combination of four quantum numbers that could be assigned to an electron occupying a 5p orbital.
    15·1 answer
  • Is it C???
    10·2 answers
  • Which of the following is the best definition of an atom?
    8·2 answers
  • BASIC CALCULATIONS IN SPECTROSCOPY
    11·1 answer
  • Explain why the coefficients on the left side of the equation don’t necessarily equal the coefficients on the right side of the
    8·1 answer
  • Read the descriptions below of two substances and an experiment on each. Decide whether the result of the experiment tells you t
    6·1 answer
  • Describe the functions of the proteins, carbohydrates and cholesterol.
    10·1 answer
  • For the balanced equation shown below, how many moles of CO2 will react with 0.708 moles of H2O.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!