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
fgiga [73]
3 years ago
7

How many days does the waxing and waning phase of the moon last on average? *

Chemistry
1 answer:
RoseWind [281]3 years ago
4 0

Answer:

7.38 days.

Explanation:

You might be interested in
Using spectroscopic notation write the complete electron configuration for the fluorine atom. Using noble gas notation write the
prohojiy [21]

Explanation:

Flourine has atomic number of 9 and hence 9 electrons in its neutral state. The full electronic configuration is given as;

1s2 2s2 2p5

Carbon has atomic number of 6 and hence 6 electrons in it's neutral state. The noble gas notation as the following format;

[closest noble gas before the element] remaining electrons

The nearest noble gas to carbon is Helium, the noble gas notation is given as;

[He] 2s4

3 0
3 years ago
Why does atomic radii decrease as you move from the left to right across the period
artcher [175]

Answer:

This is because, within a period or family of elements, all electrons are added to the same shell.

5 0
2 years ago
Read 2 more answers
If Log 4 (x) = 12, then log 2 (x / 4) is equal to
Alexus [3.1K]

The value of log₂(x/4) is 22. Using the properties of the logarithm, the required value is calculated.

<h3>What are the required properties of the logarithm?</h3>

The required logarithm properties are

logₐx = n ⇒ aⁿ = x; and logₐ(xⁿ) = n logₐ(x);

Where a is the base of the logarithm.

<h3>Calculation:</h3>

It is given that,

log₄(x) = 12;

On applying the property logₐx = n ⇒ aⁿ = x; here a = 4;

So,

log₄(x) = 12 ⇒ 4¹² = x

⇒ x = (2²)¹² = 2²⁴

Then, calculating log₂(x/4):

log₂(x/4) = log₂(2²⁴/4)

              = log₂(2²⁴/2²)

              = log₂(2²⁴ ⁻ ²)

              = log₂(2²²)

On applying the property logₐ(xⁿ) = n logₐ(x);

log₂(x/4) = 22 log₂2

We know that logₐa = 1;

So,

log₂(x/4) = 22(1)

∴ log₂(x/4) = 22.

Learn more about the properties of logarithm here:

brainly.com/question/12049968

#SPJ9

8 0
1 year ago
What is the best description of what Becquerel observed in his experiment?
myrzilka [38]

The answer is: D.unstable nuclei emitting high-energy particles as they formed more stable compositions.

Those high-energy particles are alpha particles , beta particles , gamma radiation.

For example, the decay chain of ²³⁸U is called the uranium series.

Decay start with U-238 and ends with Pb-206. There are several alpha and beta minus decays.

Antoine Henri Becquerel (1852 – 1908) was a French physicist and the first person to discover evidence of radioactivity.

Becquerel wrapped fluorescing crystal (uranium salt potassium uranyl sulfate) in a cloth, along with the photographic plate and a copper Maltese cross.

Several days later, he discovered that a image of the cross appeared on the plate.

The uranium salt was emitting radiation.

Because of this discovery, Becquerel won a Nobel Prize for Physics in 1903, which he shared with Marie Curie and Pierre Curie.


5 0
2 years ago
Read 2 more answers
What describes a mixture
kirill [66]

Answer:

a mixture is a material made up of two or more different substances which are physically combined.

4 0
3 years ago
Other questions:
  • A gas mixture contains 0.150 mol of oxygen (O2) gas, 0.419 mol of nitrogen (N2) gas. And 0.211 mol of argon (Ar) gas in a 0.250
    11·1 answer
  • Draw the Lewis structure of PH3. To add lone pairs, click the button before clicking on the molecule. Draw the molecule by placi
    13·2 answers
  • : Name the parts of transverse waves?
    7·1 answer
  • Assume that some protein molecule, in its folded native state, has one favored conformation. But when it is denatured, it become
    10·1 answer
  • An example of a solid aerosol
    11·1 answer
  • 1.) A balloon contains 0.126 mol of gas and has a volume of 2.74 L .
    8·1 answer
  • What are two things that characterize the practice of science
    8·1 answer
  • What step of the scientific method do we decide whether our hypothesis was correct or not
    12·1 answer
  • Table salt is 42.7% sodium how many grams of salt contain 76 g of sodium
    12·1 answer
  • Which best describes the law
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!