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Make a funny sentence for the beneficial or great uses of magnesium

I DON¨T WANT A MEME!

Here is an example for Mercury, it HAS to for Magnesium

¨I have a long history of use in fluorescent lighting so I can light up any room ¨

Answer:

Using the VSEPR theory, the electron bond pairs and lone pairs on the center atom will help us predict the shape of a molecule. The shape of a molecule is determined by the location of the nuclei and its electrons. The electrons and the nuclei settle into positions that minimize repulsion and maximize attraction.

Explanation:

this from the internet

sorry if im wrong

The lone pairs and bond pairs in a molecule are used to determine the location of electron pair geometry around the molecule.

The geometry of a molecule refers to  the shape of the molecule. The geometry of a molecule is determined by the valence shell electron pair repulsion theory.

Now, we know that both lone pairs and bond pairs in the molecule are used to determine the electron domain geometry around the central atom as they take the most appropriate orientations in space to minimize electron pair repulsions.

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Answer:

b. The pressure will be cut in half.

Explanation:

As we can see in the Ideal Gases formula, the pressure and the number of moles are directly proportional:

if the temperature and volume remain constant, when extracting 4 moles, the amount of substance inside the container decreases, that is, there are fewer particles, therefore the pressure will be lower.

When the number of moles is cut in half (from 8 moles to 4 moles), the pressure will also be cut in half.

The process involves of determining the density of the unknown substance.

The formula to determine density of any substance is given as:

Density = Mass / Volume.

Let's assume that we have to identify an unknown metal. we can determine the mass of the metal by using a scale. We can determine the volume of the metal by dropping the object into a graduated cylinder containing a known volume of water and measuring the new volume.

Hence, from this values of mass and volume density of the unknown metal can be determined easily. And then putting the density on the scale the unknown metal can be determined.

Hence, the process that allowed you to take measurements of mass and volume and determine the identity of the unknown metal is determination  of density.

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Answer:

ffff

Explanation:

i)   Either Q or R could potentially form an ionic bond with S because the element S has the highest electronegativity (6), while the other two elements have lower electronegativity values.

ii)

S and Q are more likely to form a polar covalent bond because the electronegativity difference between S and Q (6 - 3.64 = 2.36) is greater than the electronegativity difference between S and R (6 - 3 = 3).

iii)

The electronegativity difference between Q and R (3.64 - 3 = 0.64) is relatively small, indicating that they are more likely to form a non-polar covalent bond.

In a polar covalent bond, the electrons are shared unequally between the two atoms, thus creating a partial positive charge on one atom and a partial negative charge on the other.

The greater the difference in electronegativity between the two atoms, the more polar the bond will be.

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Explanation:

1.combined

2.bonds

3.retain

4.elements

hydrogen gas,oxygen gas

extinguish

5.sodium and chlorine

6.violently

7.Don't know for sure

I'm certain most but not all

Answer:

1.combined

2.bonds

3.retain

elements

hydrogen gas,oxygen gas

extinguish

sodium and chlorine

violently

Explanation:

same with 7

Answer:

Cell theory states that cell living organisms are composed of at least one cell, which are the basic unit of life. Cells are always produced from other living cells, and cannot spontaneously generate

Answer:

i think 3 but im sorry if im wrong

Explanation:

Answer:

The process of breaking down stones or rocks into small pieces is called weathering.

Explanation:

Explanation:

refer the above attachment

Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. Water, acids, salt, plants, animals, and changes in temperature are all agents of weathering and erosion.

Types of Mechanical Weathering

Plant Activity. The roots of plants are very strong and can grow into the cracks in existing rocks. ...

Animal Activity. ...

Thermal Expansion. ...

Frost action. ...

Exfoliaton.

Answer:

See explanation

Explanation:

A system is said to have attained dynamic equilibrium when the rate of forward reaction and the rate of reverse reaction are equal.

Considering the system under consideration;

I2(s)⇄I2(g)

Heating the container converts solid iodine to purple coloured iodine vapour.

At equilibrium, there will be no net change in the amount of solid iodine and iodine vapour present in the system because the two processes (forward and reverse reactions) occur at the same rate at equilibrium.

Answer:

False

Explanation:

Just because their hair is their doesn't mean they where their during that time period or their at all. It could have been brought in by someone else's clothes.

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We can determine the culprits by extracting the fingerprints and DNAs from the hair strand taken from the crime location. But if suspected one's hair is not found from the scene does not indicated that he or she was not involved in the crime. Hence, the statement is false.

Forensic laboratories tests samples from crime scenes. There are various advanced testing methods which helps to identify the culprits of a crime. For example the hair and fingerprints, clothes or any chemical materials, blood etc. obtained from the crime scene are tested to identify its owner.

Hair is made of proteins. From each hair strand we can extract a number of DNA molecules. Thus a hair strand obtained from a crime scene can be tested and can identify its owner.

However, sometimes there will be no evidences such as hair or blood in the crime location or sometime the may some samples which are not related the culprits.

Hence, it cannot be said that if there is no hair or any sample related with the suspected one from the crime scene, that they could be exonerated. Thus the statement is falls and he/she can be a culprit which can be proved in another way.

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Answer:

spring summer fall(autumn) winter

Explanation

spring runs from March 1 to May 31; summer runs from June 1 to August 31; fall (autumn) runs from September 1 to November 30; and. winter runs from December 1 to February 28 (February 29 in a leap year).

Hope I be brian list and hope it helps

Answer:

yes, I think

Explanation:

Answer:

false Elevation cannot be described as elevation, relief, and landforms

Answer:

\(98 \times x6x \geqslant {36461 { {3 \frac{ \sqrt[ |?| ]{?} }{?} }^{2} }^{?} }^{2} \)

okay

Magnesium oxide : MgO

Calcium bicarbonate:  Ca(HCO3)2

aluminum carbonate: Al2(CO3)3 or C3Al2O9

Answer:

Usually, you should lay down your educational background by listing the most recent or advanced degree first, working in reverse chronological order. But there are exceptions. Say you earned a degree in geography, but are now working in the field of online marketing. If you more recently completed coursework specific to social media or digital marketing, list that first to grab the reviewer’s attention.

Explanation:

Answer:

Start with the most recent  or advanced degree first, working in reverse chronological order.

Explanation:

The process of breathing involves exchanging oxygen for carbon dioxide gas.

The process of breathing involves inhalation and exhalation.

Inhalation is the process of taking in oxygen and Exhalation is the process of taking out carbon dioxide. Air contains 21 % oxygen and 71 % nitrogen and 8 % other gases.

When we breathe in(inhalation) our diaphragm contracts downward while during breath out(exhalation) our diaphragm contracts upward. As food and water are important for us in similar way breathing is also essential for life.

So during the process of breathing, we take in oxygen and take out carbon dioxide.

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Atoms that lose electrons acquire a positive charge as a result because they are left with fewer negatively charged electrons to balance the positive charges of the protons in the nucleus. Positively charged ions are called cations. Most metals become cations when they make ionic compounds.

PF₆ does not obey the octet rule.

The octet is broken in the PF₆-molecule because P increases its valency instead of adhering to it.

According to the octet calculation, it needs 56 electrons but only has 48 valence electrons, thus the missing 8 electrons are added up by 8/2 = 4 bonds. However, in this case, P forms six bonds, which is against the octet rule.

For each atom in a Lewis structure, you should count how many electrons it "owns" in order to get the formal charges.

All of its lone pair electrons as well ashalf of its bonding electrons should be counted.

The formal charge is the discrepancy between the atom's number of valence electrons and the number it possesses. The concept that an atom's valence electrons should be eight in order for a molecule made up of carbon, nitrogen, oxygen, and fluorine to be more stable is known as the "octet rule." When one of these atoms has fewer than eight valence electrons, an open octet is present. Lewis structure attached below

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The segment register that can be used to form the source operand address in the instruction MOV AX, 100[BP][SI] is DS (Data Segment).

Without knowing the base for Y, it is not possible to establish a direct relationship between the three unsigned numbers X=1001001B, Y=120Q, and Z=5EH.

In the instruction MOV AX, 100[BP][SI], the segment register that can be used to form the source operand address is DS (Data Segment). The DS register holds the segment base address, which is added to the effective address to calculate the physical address of the source or destination data.

Regarding the relationship between the three unsigned numbers X=1001001B, Y=120Q, Z=5EH:

X=1001001B: This is a binary number represented in base 2. It has a value of 73 in decimal notation (base 10). The subscript "B" indicates that the number is in binary format.

Y=120Q: This number is represented using an unknown base, denoted by the subscript "Q." Without knowing the base, it's not possible to determine the exact value of Y or establish a relationship with the other numbers.

Z=5EH: This number is represented in hexadecimal notation (base 16). It has a value of 94 in decimal notation (base 10). The subscript "E" indicates that the number is in hexadecimal format.

Without knowing the base for Y, it is not possible to establish a direct relationship between X, Y, and Z.

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Answer:

1st one: carbon dioxide

2nd: Glucose

3rd: Oxygen

4th: Energy

Sorry if this is wrong because I don't see the options!

Hope this helps!

The total mass of BF3 present is 5.552 g

What do you mean by ideal gas equation?

The Ideal gas law is the equation of state of a hypothetical ideal gas. It is a good approximation to the behaviour of many gases under many conditions, although it has several limitations. The ideal gas equation can be written as.

PV = nRT

Where,

P is the pressure of the ideal gas.

V is the volume of the ideal gas.

n is the amount of ideal gas measured in terms of moles.

R is the universal gas constant.

T is the temperature.

Given situation is ,

( P) Pressure of BF3 gas is 1.220 atm

( V) Volume of BF3 is 4.3410L

( T) Temperature of BF3 is 788.0 K

Now, assuming this as an ideal gas,

Let us apply ideal gas equation,

PV = nRT

n = PV/RT = 1.220 atm * 4.3410L / 0.0821 L atm k-1 mol-1 * 788 K

n = 0.08186 moles of BF3 are present.

Now, we know molar mass of BF3 = 67.82 gmol-1

i.e. total mass of BF3 present = Number of moles * molar mass

                                                = 0.08186 * 67.82g mol-1

                                                = 5.552 g of BF3 is present.

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Answer:

salt is ionic bond and water is Polar covalent bond

Explanation:

Answer:

Anemometer. An anemometer is a type of weather instrument that measures wind speed.

In de Morceau's nomenclature scheme, the smaller atom appears first.

Nomenclature is an organism name system used in biological classification. Genus and species names, two Latinized nouns drawn from numerous sources, serve as indicators of the species to which the creature belongs.

On August 26, 1743, Antoine-Laurent Lavoisier was born in Paris, France. He was a well-known French chemist and a key player in the 18th century chemical revolution. In addition to co-creating the current system for identifying chemical compounds, he established an experiment-based explanation of the chemical reactivity of oxygen.

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