Sodium easily combines with chorine is reactivity

Explanation:

Hassium belongs to d-block of the periodic table.

Answer:

Metals typically loose electrons and become cations

Explanation:

Metals are typically found towards the left hand side of the periodic table. They typically possess fewer electrons in their outermost shell compared to nonmetals.

As a result of this, when metals form chemical bonds with other elements, it is energetically more favourable for metals to loose electrons and form cations.

Answer:

D hope this helps

Explanation:

Answer:

d. what will happen to the freezing point of the water if salt is added?

Answer:

controlled by the Arabs, who brought frankincense and myrrh by camel caravan from South Arabia.

Answer:

different forms of genes for a single trait

Explanation:

There are three main forms  of genes  that can exist for a single trait and they are:

A dominant allele is a stronger version of a gene that shows up when at least one copy of it is present in an organism's genetic makeup. It hides the effects of the weaker gene. In a person with two different alleles, the one that is more powerful decides how the person looks or behaves.

Recessive allele: A recessive allele is only expressed when there are two of the same recessive alleles present. It is hidden by a strong gene. The recessive allele can only be seen when a person has two copies of it.

Co-dominant alleles: When co-dominant alleles are together, both are shown. In this situation, neither gene is stronger than the other, and both play a role in what an organism looks like. One example of co-dominance is the ABO blood type system. In this system, both the A and B alleles are of equal importance.

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Answer:

homogeneous mixture

Explanation:

The correct classification for air is a homogeneous mixture.

Material is referred to as a mixture when two or more chemicals combine without undergoing a chemical reaction.

Heterogeneous and homogeneous mixtures are the two types of mixtures.

While homogeneous mixtures seem consistent throughout, heterogeneous mixtures have clearly discernible components.

A solution, which can be a solid, liquid, or gas, is the most typical kind of homogenous mixture.

Mixtures are composed of two or more different substances that have not been chemically mixed. The following is a list of mixture properties.

Each of the components in a mixture retains its unique features.

Component separation is simple to carry out.

The component's relative weights vary.

The classification for air is 78% nitrogen, 21% oxygen, 0.9% argon, 0.03% carbon dioxide, and 0.07% other gases.

This classification for air has the properties of a homogeneous mixture.

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Answer:

3 g/cm3

Explanation:

d=m/v

=45/15

= 3 g/cm3

Answer:

2.46621 cm

Explanation:

i used the formula p = m/V

Answer:

Gas

Explanation:

Answer:Option D

Explanation:i took the test

Answer:

Iron have 26 atomic and sodium have 11 atomic

Explanation:

The sodium is a non-transition metal. Its melting point is low and boiling points and is a soft metal, whereas iron is a transition metal with very high melting and boiling points, It is a hard metal.

The term transition metal is defined as any of various metallic elements such as chromium, iron, and nickel that have valence electrons in two shells instead of only one.

Between the s-block and p-block elements in the periodic table are transition metals. As a result, they are known as d-block elements.

Sodium is soft, has a much lower melting point than water, and reacts with it violently, producing heat and hydrogen or even exploding. Additionally, sodium and water react to create a hazardous compound.

Thus, these are difference between the properties of sodium and iron.

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oxygen has 6 valence electrons and 2 electrons and carbon has 4 electron

Answer:

4!!!!!!!!!!

Explanation:

i got it right

Answer:

torque =force*distance

Answer:

ca +n2 is impossible to get trough a ca3 +n2 so you have to try to find a reasnable question like ca+n2 = ca3n2 then you need witch is the same but the chimacl blanice is off so when mixing the chimcals try to reduce the can2

but also try to make it be a better salution

Explanation:

hope that helps also good luck

Answer:

because it is going from a solid to a gas.

Explanation:

also it's still cold

Answer:

C. Malleability

Explanation:

The malleability of aluminum allows it to be formed into thin sheets.

Physical properties tells us about what a substance is when no change is occurring to its constituents.

Answer:

C

Explanation:

Answer:

1. a) 1.27 mol H₂SO₄

2. b) 19 g KCl

Explanation:

The grass method is an acronym for Given, Required, Application, Solution, Statement.  

1. a) Given, 125g H₂SO₄; Required, find the moles H₂SO₄; Application, 125g x molar mass of H₂SO₄, Solution, [tex]125g H2SO4 * \frac{1molH2SO4}{98.08gH2SO4} = 1.274469molH2SO4[/tex] Statement, Round to the lowest number of significant figures to get 1.27 mol H₂SO₄;

2. b) I am only show the equation for this one, but it is basically the same as the previous one. The molar mass of KCl is 74.55 g/mol.

[tex]0.25molKCl*\frac{74.55gKCl}{1molKCl} = 18.6375 gKCl[/tex]

Round to the lowest number of significant figures which is two to get 19 g KCl.

For 3 the unit converter between moles and molecules is 6.022 x 10²³ molecules/mol.

Let me know if you need more help.

Answer:

The answer is

Explanation:

To find the number of atoms of titanium , given it's number of moles we use the formula

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question

n = 0.075 mol

We have

N = 0.075 × 6.02 × 10²³

We have the final answer as

Hope this helps you

The number of particles : 2.75 x 10²¹

A mole is a unit of many particles (atoms, molecules, ions) where 1 mole is the number of particles contained in a substance that is the same amount as many atoms in 12 gr C-12  

1 mole = 6.02.10²³ particles  

[tex]\tt n=\dfrac{N}{N_o}[/tex]

N = number of particles  

No = Avogadro number (6.02.10²³)  

n = number of moles  

While the number of moles can also be obtained by dividing the mass (in grams) with the molar mass of element or molecule  

0.75 gram sample of Calcium Nitrate; Ca(NO₃)₂

MW of Ca(NO₃)₂ : 164.09 g/mol

[tex]\tt mol~Ca(NO_3)_2=\dfrac{0.75}{164.09}=0.00457[/tex]

The number of particles

[tex]\tt N=n\times N_o\\\\N=0.00457\times 6.02\times 10^{23}=2.75\times 10^{21}[/tex]

Answer:

Average atomic mass of Cl = 35.48 amu

Average atomic mass of B  = 10.8  amu

Average atomic mass of Ag  = 107.96 amu

Explanation:

1)

Given data:

Abundance of Cl-35 = 75.8%

Abundance of Cl-37 = 24.2%

Average atomic mass = ?

Solution:

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (75.8×35)+(24.2×37) /100

Average atomic mass =  2653 + 895.4 / 100

Average atomic mass  = 3548.4 / 100

Average atomic mass  = 35.48 amu

2)

Given data:

Abundance of B-10 = 19.8%

Abundance of B-11 = 80.2%

Average atomic mass = ?

Solution:

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (19.8×10)+(80.2×11) /100

Average atomic mass = 198  +882.2  / 100

Average atomic mass  = 1080.2 / 100

Average atomic mass  = 10.8  amu

3)

Given data:

Abundance of Ag-107 = 52%

Abundance of Ag-109 = 48%

Average atomic mass = ?

Solution:

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (52×107)+(48×109) /100

Average atomic mass =  5564 +5232  / 100

Average atomic mass  = 10796 / 100

Average atomic mass  = 107.96 amu

Answer:

it is a sacrafice to god so the spirtit can go free

Explanation:

Answer:

I believe it would be a sacrifice or a sacrificial ritual. hope this helped!! <3

Answer:

liquid

Explanation:

Answer:

liquid

Explanation:

Answer:

i think false

Explanation:

Centre of mass is the point at which the distribution of mass is equal in all directions, and does not depend on gravitational field. Centre of gravity is the point at which the distribution of weight is equal in all directions, and does depend on gravitational field

found it on google so it could be wrong

Answer:

True

Explanation:

I took a quiz and got it right

pls mark as brainliest.

Answer:

Used as rocket fuel, is a fertilizer ingredient, used in cooking, used to provide lighting, and used in production of other compounds

Explanation:

Hope this helps!!!

Answer:

The answer is

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

From the question

N = 5.38 × 10²¹ atoms of sodium

We have

[tex]n = \frac{5.38 \times {10}^{21} }{6.02 \times {10}^{23} } \\ = 0.00893687...[/tex]

We have the final answer as

Hope this helps you

Answer:

If the pressure of the system increases then the boiling point will increase.

If the pressure of the system decreases then the boiling point will decrease. If there is no change in pressure then the boiling point will remain constant.

Explanation:

Answer:

It's actually Neutral

Explanation:

equal number of negative electric charges (the electrons) and positive electric charges (the protons).

Answer:14

explanation: For CH3F, we have a total of 14 valence electrons. Hydrogen always goes on the outside of Lewis structures. And then Carbon is less electronegative than Fluorine, so let's put the Carbon in the center and the Hydrogens on the outside there, and the Fluorine on the top. We have a total of 14 valence electrons for CH3F.

Answer:

I literally just answered this question

Explanation:

Give me a brainliest

Answer:

Be3As2

Explanation:

Answer:

C) Be3As2

Explanation:

A.P.E.X