Help me with 23 fast
Answers
Answer:
a salt
Explanation:
compounds are made of molecules but we need to mention the type of compound formed.
Answer:
A salt
Because compounds are made of molecules but we need to mention the type of compound formed.
Related Questions
How do isotopes of a given element differ? How am they similar?
Which is the equivalent of 750 joules? a. 0.750 kJ b. 7.50kJ c.75.0 kJ d. 750.kL
Describe the motion of the atoms of a substance as it changes from a solid to a liquid. use complete sentences to explain the following concepts in your written response: what is the change in particle speed?
A _________ shampoo is designed to re-balance the pH level of your hair by neutralizing any alkali and unwanted residues in the hair. Options: A) Clarifying B) Moisturizing C) Neutralizing D) Medicated
Answers
Answers
Answer:
argon-40
Explanation:
The relative atomic mass of Argon is 39.948. This is very close to the mass of argon-40. Usually, the relative atomic mass of an element is the sum of the percentage abundance of each isotope in nature multiplied by its mass. The result of this sum is normally biased towards the isotope with the highest abundance. In the case of argon, argon-40 must have the highest abundance, hence the value of the relative atomic mass.
Argon-40 is the most abundant isotope of argon in nature because the reported atomic mass of argon is closer to 40 atomic mass units.
Given that argon has three naturally occurring isotopes: argon-36, argon-38, and argon-40, compare their masses to determine which one is most likely to contribute the most to the average atomic mass of argon.
The atomic mass of argon is typically given as approximately 39.95 atomic mass units (u). This value is a weighted average of the masses of the different isotopes of argon, taking into account their relative abundance in nature.
Argon-36 has a mass of approximately 36 atomic mass units.
Argon-38 has a mass of approximately 38 atomic mass units.
Argon-40 has a mass of approximately 40 atomic mass units.
Since the reported atomic mass of argon is closer to 40 atomic mass units, it suggests that argon-40 is the most abundant isotope of argon in nature.
Learn more about isotopes, here:
#SPJ6
(2) 0°C and 300 kPa
(3) 150°C and 100 kPa
(4) 150°C and 300 kPa
Answers
Gases behave ideally at high temperatures and low pressures (less intermolecular forces)
2) ICI
3)PCI
4) HCI
Answers
Ionic bonds are formed between a metal and non-metal. Among the given compounds, KCl is the ionic compound formed from potassium metal and chlorine.
What is ionic compound?
Ionic compounds are formed by electron lose and gain between metals and non-metals. Ionic bond is the strongest type of bond.
Metals are rich in electrons and they are electropositive. They will easily lose electrons to a non-metal to form an ionic bond. Non-metals with significant electronegativity are electron deficient and they will gain electrons from metals.
Potassium is an alkali metal in the first group and chlorine is a gas in the 17th group called halogen group. They form an ionic bond by losing electron from potassium and thus KCl is an ionic compound.
All compounds here, other than KCl are covalent compounds. Thus option 1 is correct.
To find more on KCl, refer here:
#SPJ6
Potassium Chloride is an ionic bond because it exists between a metal and a nonmetal. The Potassium ion is a cation, carrying a +1 charge; the Chlorine is an anion, carrying a -1 charge.
Answers
In chemistry we like the number of atoms or molecules in moles.
If one mole is equal to 6.02*10^23 atoms and you have 9.00 *10^23 atoms then how many moles do you have?
Answers
Answer;
= 1.495 moles
Explanation;
-One mole contains 6.02 ×10^23 particles
Therefore;
1 mole = 6.02 ×10^23 atoms
Thus; 9.00 ×10^23 atoms will have;
= 9.00 ×10^23 atoms / 6.02 ×10^23 atoms
= 1.495 moles
Answer:
2.49
⋅
10
−
12
moles Pb
Explanation:
Before doing any calculations, it's worth noting that atoms do not contain moles, it's the other way around.
A mole is simply a collection of atoms. More specifically, you need to have exactly
6.022
⋅
10
23
atoms of an element in order to have one mole of that element - this is known as Avogadro's number.
In your case, you must determine how many moles of lead would contain
1.50
⋅
10
12
atoms of lead.
Well, if you know that one mole of lead must contain
6.022
⋅
10
23
atoms of lead, it follows that you get
1.50
⋅
10
12
atoms of lead in
1.50
⋅
10
12
atoms of Pb
⋅
1 mole Pb
6.022
⋅
10
23
atoms of Pb
=
2.49
⋅
10
−
12
moles Pb