fill in the blank
1 electronic configuration of 1531p is
2.what would be the atomic number of an atom with 6 valence element​

Answer:

526.85K

Explanation:

Based on Charles's law, the volume of a gas is directly proportional to absolute temperature. The formrula is:

V₁ / T₁ = V₂ / T₂

Where 1 represents the initial state and 2 the final state of the gas

Using the values of the problem:

V₁ = 10.0L

T₁ = 127°C + 273.15K = 400.15K

V₂ = 20.0L

Thus, replacing in the formula:

10.0L / 400.15K = 20.0L / T₂

T₂ = 800K

In Celsius:

800K - 273.15 = 526.85K

Answer:

Not saturated

Explanation:

not saturated; having the power to dissolve still more of a substance. Chemistry. (of an organic compound) having a double or triple bond and capable of taking on elements or groups by direct chemical combination without the liberation of other elements or compounds, as ethylene, CH2 = CH2; undersaturated.

Answer:

We can assume that all force acting on the box are balanced in all directions .

Answer:

the answer to fill the blank is 5

Explanation:

i just did the lesson :)

Answer:

5

Explanation:

Answer:

A. The atomic number

the anwer is B.The atomic mass because atoms may be similar atomic mass ,number of electron,proton,and neutron by the presence of isotope but no two atoms have the same atomic number

Answer:

The container will have a pressure of 8 atm when the temperature is 50 degrees Celsius

Explanation:

To calculate this temperature, we need a gas law that relates temperature and pressure.

This is the Gay Lussac’s law and we know from it that temperature and pressure are directly related

Thus;

P1/T1 = P2/T2

From the question;

P1 = 4 atm

T1 = 25 degrees celsius

P2 = 8 atm

T2 = ?

Substituting these values, we have;

4/25 = 8/T2

4T2 = 8 * 25

4T2 = 200

T2 = 200/4

T2 = 50 degrees Celsius

Answer:

6) 225.8 g

7) 1.01 g

8) 21.624 g

Explanation:

6) Molar Mass of Lithium Bromine: 86.845

86.845 * 2.6 = 225.8 g

7) Molar Mass of Neon: 20.180

20.180 * 0.05 = 1.01 g

8) Molar Mass of Water Vapor: 18.02

18.02 * 1.2 = 21.624 g

Answer:

Elastic Potential Energy

Answer:

Characteristics outlined below

Explanation:

Anthropods, though they generally possess exoskeleton, segmented bodies and joint appendages, are divided into four (4) groups:

Answer:

Noble gases b/c its melts quicly that why enjoy

Answer: 44g

Explanation: The formular for finding Moles is ;

Moles =  Mass / Molar Mass or Formular Mass.

Base on this question; Moles = 10, Mass = 440g, and Formular Mass = ?

Making 'Formular Mass', subject of the formular; we thus have;

Formular mass = Mass / Moles = 440/ 10 = 44g

Answer:

1M

Explanation:

The molarity of a substance is defined as the number of moles of the substance divided by how many liters the solution is. NaOH has a molar mass of about 40 grams, meaning that 10 grams of it would be 0.25 moles. 0.25/0.25= a molarity of 1.

Hope this helps!

Answer:

1. by not avoiding air bubbles from being trapped in the burette or pipette when filling them

2. not cross-checking the burette if it's slanted or vertically clamped

3. forgetting to rinse the pipette or burette with the solution to be used

4. not considering to take readings from the bottom of the meniscus with the eye level

5. finally, adding more than three drops of indicators to the pipetted solution

Explanation:

1. because the air bubbles will be mistakenly considered as part of the amount of the solution taken instead of that actually used up, and a higher titre value would be obtained

2. because if it's slanted, the acid level will be titled to one side and wrong reading will be recorded

3. rinsing to avoid diluting the acid or base with water that wets the burette or pipette

4. to avoid error of parallax and helps you to obtain accurate readings

5. excess burette solution than would normally have been consumed would be used up to change the colour of the indicator

Titration has been defined as the neutralization reaction for the acid and base, resulting in the formation of salt and water. It has been used for the determination of strength of acid and base.

The general source of error in titration has been;

The titration error has generally being manual error, and can be easily corrected.

For more information about titration, refer to the link:

https://brainly.com/question/24704707

The compound name for the chemical formula FeCO₃ is iron(II) carbonate.

Fe: The symbol "Fe" represents the chemical element iron.

CO₃: The symbol "CO₃" represents the carbonate ion, which consists of one carbon atom (C) bonded to three oxygen atoms (O).

The compound's name is iron(II) carbonate, which indicates the oxidation state of iron in the compound. In this case, the Roman numeral II (2) in parentheses after "iron" denotes that the iron atom has a +2 oxidation state. The name "carbonate" indicates the presence of the carbonate ion.

Therefore, FeCO₃ is composed of one iron (Fe) atom bonded to one carbonate (CO₃) group.

To learn more about the chemical formula, follow the link:

https://brainly.com/question/32018188

#SPJ6

Answer: A. The Wright brothers figured out how to outfit the plane with wings that flapped, similar to birds' wings,

Explanation: A p e x

Answer:

A

Explanation:

A p e x

Answer:

b) 4m/s^2

Explanation:

F=ma

F=8N

m=2kg

a=?

a=F÷m

8/2=4

acceleration=4m/s²

Answer: The concentration of [tex]OH^-[/tex] ions in the solution is 0.0063 M

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pOH is calculated by taking negative logarithm of hydroxide ion concentration.

[tex]pOH=-\log [OH^-][/tex]

[tex]pH+pOH=14[/tex]

[tex]11.8+pOH=14[/tex]

[tex]pOH=2.2[/tex]

Putting in the values:

[tex]2.2=-\log[OH^-][/tex]

[tex][OH^-]=[/tex] 0.0063 M

Thus the concentration of [tex]OH^-[/tex] ions in the solution is 0.0063 M

Answer:

A television.

Explanation:

Diodes and Resistors are important components of modern day appliances. They are both made up of electrical components with two-terminals. The resistors provide resistance to the appliance while the diode enables electric current to flow in one direction. This enables proper functioning and prevention of hazards associated with electric current.

Answer:

Sr(OH)₂ will be the limiting reagent.

Explanation:

First of all, you should know the following balanced chemical equation:

2 H₂CO₃ + 2 Sr(OH)₂ → 4 H₂O + Sr₂(CO₃)₂

The balanced equation is based on the Law of Conservation of Mass, which says that matter cannot be created or destroyed. Therefore, the number of each type of atom on each side of a chemical equation must be the same.      

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.

To determine the limiting reagent, it is possible to use the reaction stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction). By stoichiometry the following amounts in moles react:

Now, you know the following masses of the elements:

So the molar mass of strontium hydroxide is:

Sr(OH)₂= 87.62 g/mole + 2*(16 g/mole + 1 g/mole)= 121.62 g/mole

You apply the following rule of three, if 121.62 grams of hydroxide are present in 1 mole, 12.5 grams in how many moles are they?

[tex]moles of strontium hydroxide=\frac{12.5 grams*1 mole}{121.62 grams}[/tex]

moles of hydroxide= 0.103 moles

On the other hand, you have 150 ml of 3.5 M carbonic acid. Since molarity is the concentration of a solution expressed in the number of moles dissolved per liter of solution, you can apply the following rule of three: if in 1 L there are 3.5 moles of carbonic acid, in 0.150 L (being 1 L = 1000 mL, 0.150 L = 150 mL) how many moles of acid are there?

[tex]molesofcarbonicacid=\frac{0.150 L*3.5 moles}{1 L}[/tex]

moles of carbonic acid= 0.525 moles

Finally, to calculate the limiting reagent, you can use a simple rule of three as follows: if by stoichiometry 2 mole of strontium hydroxide reacts with , how much moles of carbonic acid will be needed if 0.103 moles of strontium hydroxide react?

[tex]molesofcarbonicacid=\frac{0.103 moles of strontium hydroxide*2 moles of carbonic acid}{2 moles of strontium hydroxide}[/tex]

moles of carbonic acid= 0.103 moles

But 0.525 moles are available. Since more moles are available than you need to react with 0.103 moles of strontium hydroxide, Sr(OH)₂ will be the limiting reagent.

Answer:

404.8g of (NH4)HSO4 is produced.

Explanation:

Step 1:

Data obtained from the question. This include the following:

Temperature (T) = 10°C = 10°C + 273 = 283K

Pressure (P) = 110KPa = 110/101.325 = 1.09atm

Volume (V) = 75L

Step 2:

Determination of the number of mole of ammonia, NH3.

The number of mole (n) of ammonia, NH3 can be obtained by using the ideal gas equation. This is illustrated below:

Note:

Gas constant (R) = 0.0821atm.L/Kmol

Number of mole (n) =?

PV = nRT

1.09 x 75 = n x 0.0821 x 283

Divide both side by 0.0821 x 283

n = (1.09 x 75) /(0.0821 x 283)

n = 3.52 moles

Step 3:

Determination of the number of mole ammonium hydrogen sulfate produced from the reaction.

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

NH3 + H2SO4 —> (NH4)HSO4

From the balanced equation above,

1 mole of NH3 produced 1 mole of (NH4)HSO4

Therefore, 3.52 moles of NH3 will also produce 3.52 moles of (NH4)HSO4.

Therefore, 3.52 moles of ammonium hydrogen sulfate, (NH4)HSO4 is produced.

Step 4:

Conversion of 3.52 moles of ammonium hydrogen sulfate, (NH4)HSO4 to grams. This is illustrated below:

Molar Mass of (NH4)HSO4 = 14 + (4x1) + 1 + 32 + (16x4) = 115g/mol

Number of mole of (NH4)HSO4 = 3.52 moles

Mass of (NH4)HSO4 =..?

Mass = mole x molar Mass

Mass of (NH4)HSO4 = 3.52 x 115 = 404.8g

Therefore, 404.8g of (NH4)HSO4 is produced.

The upthrust keeps a ship afloat. The upthrust keeps swimmers on top of the water. Things weigh less in water.

The upward force exerted on a body by the fluid in which the body is submerged is called the upthrust or buoyant force. The property of liquid to exert an upward force on a body immersed in it is called buoyancy. Being a force upthrust is measured in newton or kgf in the system of international units. Examples Pushing an empty can into water experiences the buoyant force. Pushing a cork into water into water experiences the buoyant force. Reason for Upthrust The thrust ating on on the sides of walls of the body get neutralised because they are equal in magnitude and opposite in the directions. There is a pressure difference between the lower and upper faces of block. Since force is the product of pressure and area, The difference in pressure due to liquid is on th two faces of causes a net upward force called upthrust on the body immersed in the fluid.

Answer: upthrust an upward force exerted by a fluid that opposes the weight of an immersed object.It is the force that pushes an object up. ... the upward force that a liquid or gas exerts on a body floating in it.

When a body is placed in water, Up thrust = V x d x g

From the above formula we can say that the following are the factors that affect up thrust:

Acceleration due to gravity - (g)

Density of the liquid - (d)

Volume of the body submerged in the liquid - (V), or volume of the liquid displaced (v)

Explanation:

Answer:

1. The soap molecule is made up of two different ends that include polar head which is hydrophilic carrying carboxylate group (-CO2) (binds with water) and the other is non-polar hydrocarbon tail that is hydrophobic carrying hydrocarbon chain (binds with stain) .

When soap water is added with stain or oil, soap molecules form micelles which are the tiny clusters of soap molecules representing hydrophilic head  (water-loving) points outwards that sticks to the water and hydrophobic tail (oil-loving) points inwards that stick to the oil and trap oil in the center.

As micelle is soluble in water, the trapped oil or stain is rinsed away along with soapy water.

2. A micelle is defined as a cluster of surfactant molecules that are dispersed water and form a colloidal solution.

3. Emulsification is the process in which soap act as an emulsifier that allows dispersion of immiscible liquid. It means soap will disperse stain or dirt in such a way that it can be removed.

4. As we discussed earlier, Soap has hydrophilic (water-loving) carboxylate group (-CO2) that form hydrogen bonds and ion-dipole interactions with water and the hydrophobic (water-fearing) tail carry nonpolar hydrocarbon chain that interacts with a stain by forming micelles through dispersion force.

The negatively charged carboxylate group (hydrophilic) repels each other and hydrocarbon chain (hydrophobic) trap stain inside and remove the dirt along with water.

Answer:

Hey mate,

Here is your answer. Hope it helps you.

18 grams.

Explanation:

The mass of one mole of any atom/molecule is equal to its atomic molecular mass in grams.

The molecular formula of water is

H

2

O

The atomic mass of

H

= 1

The atomic mass of

O

= 16

In a sense, the formula means

H

+

H

+

O

So... 1 + 1 + 16 = 18

Therefore, the mass of one mole of water = 18 milliletres

Answer:

H₂O + Na → NaOH + H₂

Explanation:

Firstly, a skeleton equation does not reflect the relative amount of reactants and products. A skeleton reaction only identifies the reactant and product by their chemical formula but it does not quantify them. A skeleton chemical equation is simply described as an unbalanced equation.

The question asked for the correct skeleton reaction of water and sodium to produce sodium hydroxide and hydrogen.

Let us represent them with their chemical formula

Water → H₂O

Sodium → Na

Sodium hydroxide → NaOH

Hydrogen → H₂

The skeleton reaction will be  

H₂O + Na → NaOH + H₂

Answer:

homozygous dominant

Explanation:

AA or BB would be another example of this. Having two of either capital or lowercase letters makes it homozygous. It is dominate because their is only one type of letter; In this case it is a capital letter.

Answer:

Homozygous

According to Mendelian inheritance, every trait (characteristic) of organsim is governed by pair of genes (that exist in two different forms, recessive and dominant allele).

Dominant allele (expressed in capital letter) masks the expression of recessive allele that is expressed in small letter.

There are two possible genotypes for dominant trait, such as 'tall pea plant' can be expressed by TT (homozygous dominant, since both alleles are same) and Tt (heterozygous dominant, since both are different alleles).

Thus, TT depicts homozygous dominant genotype.

(Hope this helps) Sky

Answer:

false

Explanation:

no, waste products in lab can't be poured down the sink because sometime cimicals can be harmfully and can damage the sink

Answer:

False

Explanation:

Your teacher has a designated area for getting rid of chemicals especially potentially hazardous chemicals

Answer:

The Etna volcano when it previously erupted released a lot of smoke, and then volcanic lava.

Explanation:

The eruption of this volcano was on the Italian island of Sicily.

Where there were large columns of smoke and after that the volcanic magma in a viscoelastic state was released into the external environment.

Some sources claim that the eruption of this volcano reached the areas of Zaffanera.

Answer:

14) The edge dislocation is more plastic than the screw dislocation

15) So as to form kinks that are fast moving

Explanation:

14) Edge and screw dislocations are the two main types of mobile dislocations

The three dimensional core of the screw dislocation prevents the slipping of the layers (one over the other) in a BCC metal such that kinks are required to be formed first  by thermal activation (heating) in order. The kinks are edge dislocation that move such that the screw dislocation moves forward

Hence, the edge dislocation is more plastic than the screw dislocation

15) The three dimensional structure of a screw dislocation acts like a wedge which resists the slipping of the layers in the BCC structure such that the screw dislocation needs to be highly thermally activated forming kinks before the surrounding layers can move.

Answer:

Explanation:

a) This is to show that particles are in constant motion (and that matter is made of particles) with kinetic energy which enables particles of one matter to intermix with particles of another matter. this is known as diffusion. For example, the fragrance of a burning incense stick could be felt even at the farther end of the room because particles from the incense stick rise and intermix with the particles of air. T hey diffuse and spread all over the room.

b) Brownian motion is a constant zig-zag motion particles undergo. This can be noticed in a colloidal solution. particles of a colloidal solution remain active as they are charged with the same charge (all the particles of a certain solution carry the same charge). This causes each of them to repel from each other thus putting them into constant motion (kinetic energy). Thus, this too shows that particles are in constant motion (and that matter is made of particles).