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
Darya [45]
3 years ago
5

Consider sodium oxide, Na2O. Choose the best explanation for the subscript, 2, from the list provided. There are two atoms of ox

ygen and one atom of sodium. There are two atoms of sodium and one atom of oxygen. There are two molecules of sodium and two atoms of oxygen. There are two molecules of sodium oxide.
Chemistry
2 answers:
Shalnov [3]3 years ago
7 0

There are two atoms of sodium and one atom of oxygen.

maria [59]3 years ago
7 0

Answer:

There are two atoms of sodium and one atom of oxygen.

Explanation:

Atom is the element in its most simple form, that we can find in the periodic table, such as H (Hydrogen), O (Oxygen) and Na (Sodium).

A molecule is a compound formed by atoms that have covalent bonds between them. Covalent bonds occur between non-metals, or non-metals with hydrogen, or between hydrogen.

The bond between metal and non-metal is ionic, and the compound is not a molecule, it's a crystalline solid.

So, in Na2O, there are 2 atoms of Na and one atom of O, and there is a crystalline solid.

You might be interested in
How many moles of H2SO4 are present in 0.500 L of a 0.150 M H2SO4 solution?
bonufazy [111]

Answer: 0.075

Explanation:

(concentration in molarity)(volume in liter) = answer

0.15 mol/L *0.500L = 0.075 mol

3 0
3 years ago
What is the smallest particle representing water?
horrorfan [7]
Water is a compound that is made up of oxygen and hydrogen atoms, therefore the smallest particle of water is water molecule. The smallest particle representing water is written as H2O. H2O is the smallest unit to which water can be split while still retaining the properties of water.
4 0
3 years ago
Read 2 more answers
In a sealed gas-liquid system at constant temperature, eventually...?
SOVA2 [1]
<h2>Let us study about it .</h2>

Explanation:

Evaporation

It is the process of converting liquid into vapors .

Condensation

It is the process of converting  vapors back into liquid state .

  1. Suppose if we have a sealed container and we are supplying it with no or little heat , we will see that as we increase heat , the particles starts moving faster .
  2. When they move they also colloide and transfer energies .
  3. The kinetic energies of certain molecule increase to an extent that they leave the other particles and escape in atmosphere .
  4. That is evaporation occurs .At the same time when these vapors collide with each other or with the walls of container they get cooled and again get converted to liquid state .

It is seen that  a equilibrium is reached when "rate of evaporation becomes equal to rate of condensation ".

4 0
3 years ago
When hot lava reaches seawater, the salts in the water react with steam to form gaseous hydrochloric acid. You are given an unba
qaws [65]
Cl⁻ + H₂O(g) = HCl(g) + OH⁻

w - it is percent chloride ions in solid sea salt (as a rule 55%)

m - it is the mass of sea salt

m(Cl⁻)=mw/100

m(Cl⁻)/M(Cl)=V(HCl)/V₀

mw/{100M(Cl)}=V(HCl)/V₀

m=100M(Cl)V(HCl)/{wV₀}  (<span>the mass of solid sea salt)</span>

V₀=22.4 L/mol
M(Cl)=35.45 g/mol

for example:
V(HCl)= 1.0 L
w=55%

m=100×35.45×1.0/{55×22.4}=2.88 g



7 0
3 years ago
Read 2 more answers
Determina la masa del compuesto CoS
Anuta_ua [19.1K]
Co= 59g
S=32g
59+32=91g/mol
8 0
3 years ago
Other questions:
  • Calculate the quantity 87.3 cm − 1.655 cm. _____cm
    15·2 answers
  • A student listed the characteristics of chemical and nuclear reactions.
    6·2 answers
  • Note that butane has two possible isomers but that decane has 75 possible isomers. Why does the number of possible isomers go up
    6·1 answer
  • Look at the spectrums of a star moving towards Earth and a motionless star.
    6·2 answers
  • When limestone (which is principally CaCO3) is heated, carbon dioxide and quick- lime (Cao) are produced by the reaction CaCO3(s
    14·1 answer
  • Hello again. Image is below
    10·1 answer
  • Where would we find yellow bone marrow?​
    12·2 answers
  • Why are lab rules important
    5·2 answers
  • Light-dependent reactions: ​
    10·1 answer
  • Compound A has 4 moles of hydrogen, 4 moles of oxygen, and
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!