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
erik [133]
3 years ago
10

All elements have a unique atomic emission spectrum. In which of the following scenarios would this fact be most useful?

Chemistry
1 answer:
djyliett [7]3 years ago
6 0
Optrion A: when trying to determine a star's chemical composition.

Because unique atomic emission spectrum, analyzing the  emission spectrum you can tell the chemical composition.
You might be interested in
How many electrons are in the 3p sublevel of Sulfur?
goldenfox [79]
There are FOUR electrons in the 3p sub-level of sulfur....
3 0
2 years ago
Balanced chemical equation for the standard formation reaction of solid sodium carbonate
kenny6666 [7]
CO2 + 2 NaOH → Na2CO3 + H2O
4 0
3 years ago
Read 2 more answers
Give the nuclear symbol for the isotope of silicon for which a=29? Enter the nuclear symbol for the isotope (e.G., 42he).
quester [9]

The mass number is the summation of number of proton and neutron present in a nucleus of an atom. For the neutral atom the number of positive charge (number of proton) must be equal to the number of electrons. The number of electrons present in an atom is the atomic number of the atom. The standard way to express the mass number (a) and atomic number (m) of a atom (say X) is x^{a}_{m}. Now for silicon number of electron or atomic number is 14. And the mass number (a) given 29. Thus the expression nucleus of silicon will be Si^{29}_{14}

7 0
3 years ago
What is capillary action? Describe how capillary action shown by water is useful for plants and animals on Earth.
Shtirlitz [24]

Answer:

Look Below

Explanation:

Capillary action is adhesion of water. In plants, capillary action allows water to move from the roots to leaves. In animals, capillary action plays a role in respiration where oxygen-poor blood oxygenates in the capillaries.

4 0
3 years ago
Read 2 more answers
A solid substance formed when two aqueous solutions are mixed is known as a
lys-0071 [83]

Answer:

b. precipitate is your answer

3 0
2 years ago
Read 2 more answers
Other questions:
  • Why do you believe knowing how elements and compounds react together is essential in everyday matters?
    10·2 answers
  • How many protons, electrons, and neutrons does the following Isotope contain?<br> 27Al 3+
    5·1 answer
  • Vhat is the molarity of an Nal solution that contains 7.0 g of Nal in 23.0 mL of solution?
    11·1 answer
  • If a red blood cell is 100% saturated, how many molecules of O2 are bound to it?1 billion molecules of O24 molecules of O2250 mi
    13·1 answer
  • Which element forms the skeleton of this polymer?
    14·2 answers
  • Mercury may have ice trapped in the crater floors near the planet’s north pole.
    9·1 answer
  • What causes deep ocean currents to flow
    9·1 answer
  • How do the atomic number and the mass number of an element
    6·1 answer
  • In a sample containing 100 atoms of X, 70 were found to be 9X while 30 were 11X isotopes. Determine the average relative atomic
    8·1 answer
  • A package of chocolate instant pudding contains 2640 mg of sodium. how many grams of sodium are in the pudding?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!