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
svetoff [14.1K]
3 years ago
14

Which notation represents an atom of sodium with an atomic number of 11 and a mass number of 24

Chemistry
2 answers:
Shkiper50 [21]3 years ago
8 0
The notation is Na24.
sukhopar [10]3 years ago
6 0
Na24 is the notation
You might be interested in
What direction do the plates have to move in order for an earthquake to occur?
Bess [88]
they would be pushing together
4 0
3 years ago
Read 2 more answers
When wood burns, the mass of the ash is less than the mass of the original wood. Yet the law of conservation of matter says that
satela [25.4K]

Explanation:

According to the law of the conservation of mass, 'mass is conserved in a chemical reaction. The mass cannot be created nor be destroyed in a chemical process'.

This law holds true for the burning of wood also. Although the wood burns to produce ash which weighs less than wood but also, it produces some soot and other gases and the sum of the masses of all these is equal to the sum of the masses of wood and oxygen that reacted with it.

7 0
3 years ago
A chemist fills a reaction vessel with mercurous chloride solid, mercury (I) aqueous solution, and chloride aqueous solution at
makvit [3.9K]

Answer:

ΔG° = -533.64 kJ

Explanation:

Let's consider the following reaction.

Hg₂Cl₂(s) ⇄ Hg₂²⁺(aq) + 2 Cl⁻(aq)

The standard Gibbs free energy (ΔG°) can be calculated using the following expression:

ΔG° = ∑np × ΔG°f(products) - ∑nr × ΔG°f(reactants)

where,

ni are the moles of reactants and products

ΔG°f(i) are the standard Gibbs free energies of formation of reactants and products

ΔG° = 1 mol × ΔG°f(Hg₂²⁺) + 2 mol × ΔG°f(Cl⁻) - 1 mol × ΔG°f(Hg₂Cl₂)

ΔG° = 1 mol × 148.85 kJ/mol + 2 mol × (-182.43 kJ/mol) - 1 mol × (-317.63 kJ/mol)

ΔG° = -533.64 kJ

3 0
3 years ago
Lily is doing a science experiment with a substance in a sealed jar. At first, the substance's molecules are moving around each
Alex

The molecules will be more separated, and will have least amount of intermolecular force of attraction.

<h3><u>Explanation:</u></h3>

The molecules inside the jar of Lilly are moving around each other. This means the state of the matter present inside the jar is liquid. As Lily gives more energy inside the jar , the molecules inside the jar will get more separated as the kinetic energy of the molecules increase and the intermolecular force of attraction decreases as well as the intermolecular separation or distance increase. As the energy is continued to be supplied from outside, there will be a time when this liquid will reaches boiling point and will start to change into gas. After this point the intermolecular force of attraction will be least among molecules and their separation will be maximum.

6 0
3 years ago
Scientific notation is used to express large numbers in convenient form true or false
Olin [163]
<span>Scientific notation is used to express large numbers in a way that is to use, readable, comparable to other numbers and convenient. It is especially useful for things that are very large and very small because it is very tedious to work with many zero's when completing complex math problems.</span>
4 0
3 years ago
Other questions:
  • Most of an atom's volume is the space in which electrons move true or false
    10·1 answer
  • An element has 15 protons, 11 neutrons, and 17 electrons. What is the name of the<br> element?
    13·1 answer
  • The movement of atoms, ions, or molecules from a region of higher concentration to regions of lower concentration is called ____
    15·1 answer
  • A toy helicopter is flying straight ahead. A fan is blowing air toward the helicopter's right.
    13·2 answers
  • State hess's law.how is it used
    6·2 answers
  • How many significant figures does 16.00 contain
    11·1 answer
  • You are a meteorologist measuring the changing air pressure due to an approaching weather front. What instrument would you use t
    8·2 answers
  • All the following process lead to a decrease in salinity of seawater except for A. melting of sea Ice B. Precipitation C. runoff
    12·1 answer
  • Since the amount of yeast stays the SAME, it is considered to be a?
    5·1 answer
  • Is there a relationship between atomie radius and electronegativity? Why or why not?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!