PLEASE HELP ME ASAP!!!!!

Answer:

The correct response is "3.127 weeks". A further explanation is given below.

Explanation:

As we know,

y = 1.3431x

Use, y = 4.2 cm

Now,

⇒ [tex]y = 1.3431x[/tex]

On substituting the values of y, we get

⇒ [tex]4.2=1.3431x[/tex]

⇒ [tex]x = \frac{4.2}{1.3431}[/tex]

⇒    [tex]=3.127 \ weeks[/tex]

In Mg3(PO4)2 there are 13 atoms

Given

Mg3(PO4)2 compound

Required

The composition of the compound

Solution

Molecular formula (MF) is a formula that shows the number of atomic elements that make up a compound.

In the compound Mg3 (PO4) 2, there are 3 types of atoms, namely Mg, P, and O

The number of each of the atoms:

Mg = 3 atoms

P = 2 atoms

O = 8 atoms

Total atoms in the compound = 3 + 2 + 8 = 13 atoms

Answer:  " [tex]1.41 * 10^{24}[/tex] " atoms of aluminum (Al) .

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Explanation:

_________________________

Using a technique called "dimensional analysis" ; as follows:

________________________

→  " [tex]\frac{2.34 mol Al}{1} * \frac{6.022*10^{23}atoms Al}{1 mol Al} = ?[/tex]  

________________________

The units "mol Al" ["moles of aluminum"] cancel out; and we have:

________________________

→  "[tex][(2.34) * (6.022 * 10^{23})] = ?[/tex] atoms of Al [aluminum].

________________________

Note that by definition: 1 (one) "mole" (abbreviated "mol") of anything consists of " [tex]6.022*10^{23}[/tex] " units " of that particular thing.

 This number:  6.022*10^{23} —is known as:  "Avogadro's number".

________________________

→  [ 2.34 * 6.022 * 10^23] ;

     = 1.409148 * 10^24 ;

                → Round to 3 (Three) significant figures;

                →  since: "2.34" has 3 (Three) significant figures;

                  →  to get: " [tex]1.41 *10^{24}[/tex]  atoms of aluminum (Al).

________________________

Hope this is helpful to you!  Wishing you the best!

________________________

Answer: Elements found in group 1 (Alkaline Metals)

Explanation: Any element found in group 1, such as Lithium, Sodium, Caesium, or Francium, have similar properties as potassium. Atoms that are found in the same group on the periodic table have similar chemical properties.

Answer:

Weak acids and bases are only partially ionized in their solutions, whereas strong acids and bases are completely ionized when dissolved in water.

Explanation:

Answer:

D

Explanation:

A beaker can be used for boiling coz it can withstand high temperatures.

It can be used for measuring the volume of a solid indirectly by measuring the displacement of a liquid.

It can as well be used for mixing coz it flat bottomed

Answer:

So its a theory by Alfred Wegener is that All land was one big piece of land called pangea in the early 20th century people began to think that land masses can move such as many do just from it being there or natural disasters then going in to more research they found that when putting the continents together it fit like a puzzle  and the fact that some fossils were far away from were the same were found

The theory of continental drift, based their theory on several lines of evidence, including the fit of the continents, paleoclimate indicators, truncated geologic features, and fossils.

The continental drift hypothesis states that all the continents were once joined together as one large mass of land, but then the land spread apart and drifted into their current positions.

The hot magma flows in convection currents due to tremendous heat and pressure within the earth. These currents cause the tectonic plates that make up the earth's crust to move.

Thus, The theory of continental drift, based their theory on many lines of evidence, including the fit of the continents, paleoclimate indicators, truncated geologic features, and fossils.

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Answer:

Responsive, having trouble breathing, and has a low pulse

Explanation:

Answer:

A gene is smaller.

Explanation:

A gene is actually inside of a chromosome, therefore it's a smaller entity.

;

Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes.

Answer: genes

Explanation: Genes are smaller because they are in the chromosomes.

Answer:

Thanks bro, I will gladly take them for free

Answer:

7g

Explanation:

Given parameters:

Mass of sodium  = 3g

Mass of chlorine  = 4g

Unknown:

Total mass of sodium chloride  = ?

Solution:

This problem entails the direct application of the law of conservation of mass. According to this law, it states that "matter is neither created nor destroyed in the course of a chemical reaction".

So, when sodium and chlorine combines to form sodium chloride, to are expect to produce substance with a mass which adds up to the sum of the reactants;

  Mass of sodium chloride  = mass of sodium + mass of chlorine

                                              = 3g + 4g

                                              = 7g

Answer:

chemical bonds and covalent bonds

Explanation: covalent bonds are in which the valence electrons density is shared between two atoms and  chemical  bonds are the connections between atoms in a molecule . electrons  can be either free [not attached to any atom] or bound to nucleus of an atom. atom or molecule is a number of an ion which is either positive or negative. when we combine ion we can only combine elements with ionic bonds.  when atoms join together , they form chemical bonds without transferring any electrons but they rather share them. copper sulphide  are the last shell that are shared with bonding . proteins, carbohydrates, lipids are the example of macromolecules .  nucleic acids, lipids, proteins, carbohydrates are the main atoms involved in carbon chemistry.

HOPE THIS ANSWER HELP!!

Answer:

C.) evaporation

Explanation:

When water absorbs enough heat, it becomes a gas (water vapor). This process is called evaporation.

I hope this helps! :)

Answer: I guess have to like explain to her why to not stick the fork into the toaster.

Explanation:

Hope this helps

Answer:

its just how would you explain how it happens how the electricity passes through the fork but in a easy understandable way

Explanation:

for example... dont do that because......................then will go through the fork then to your arm and will cause....................... then you die

Answer:

I believe that it would be the third option down.

Explanation:

The thermal energy is in constant motion in the COOLER room, and when the desired temperature in the room is reached, it stops.

Answer:

6.0 x 10 to the power of 23

Heat required = Q = 40 kcal

Given

mass of 500 g ice

Required

Heat required

Solution

The heat to change the phase can be formulated :  

Lf=latent heat of fusion  

Lv=latent heat of vaporization  

Lf for water = 334 kj/kg=6.01 kJ/mol = 80 cal/g

Phase change(ice to water)

Q=  500 g x 80 cal/g

Q = 40 kcal

Answer:

The mass of silver chloride produced = 2.202 g

Explanation:

Equation of the reaction is given below

3AgNO₃(aq) + FeCl₃(aq) ----> 3AgCl(s) + Fe(NO₃)₃(aq)

molar mass of AgNO₃ = 170 g/mol

molar mass of FeCl₃ = 233.5 g/mol

molar mass of AgCl = 143.5 g/mol

3 moles of silver nitrate reacts with 1 mole of iron (iii) chloride to give 3 moles of silver nitrate

4.15 grams of AgNO₃ = 4.15/170 = 0.0244 moles of AgNO₃

1.11 grams of FeCl₃ = 1.11/233.5 = 0.0047 moles of FeCl₃

mole ratio of AgNO₃ to FeCl₃ = 0.0244/0.0047 = 5 : 1

therefore, FeCl₃ is the limiting reactant

0.0047 moles of FeCl₃ reacting will produce 0.0047 *  3 moles of AgCl = 0.0141 moles of AgCl

0.0141 moles of AgCl = 0.0141 * 143.5 g of AgCl = 2.02 g of AgCl =

Therefore mass of silver chloride produced = 2.202 g

Answer:the third one hope this helped u may i plz get brainlist only if u wanna give me brainlist though have an good day kind sir or ma'ma.

Explanation:

Answer:

B

Explanation:

A P E X

After a lightning storm, the Rodriguez family notices the TV is no longer working because a power surge burned an electric component of the TV. The correct option is B.

Lightning is a natural phenomenon that occurs when there is a collision of negative and positive charged particles. It appears as light or spark of electricity into the earth. It shines and affects the eyes if directly seen.

Lightning occurs when there is thunder or rain, lightning causes destruction to the earth, the houses, trees, and people are also impacted by this. The TV was not working because there was a short circuit due to lightning.

Thus, the correct option is B. A power surge burned an electric component of the TV during a lightning storm.

Learn more about lightning, here:

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Answer:

Because they all have different characteristics and they are not just things that the scientists say. they are all different but some of them have the Same charateristics

Answer:

   2C3H6 + 9 O2 ---> 6 CO2 + 6 H2O

Explanation:

Answer:radiation

Explanation:

When the water begins to boil the rice moves in a circular pattern which means radiation will be the correct answer

Answer:

Unless they chemically react with each other, the individual gases in a mixture of gases do not affect each other’s pressure. Each individual gas in a mixture exerts the same pressure that it would exert if it were present alone in the container . The pressure exerted by each individual gas in a mixture is called its partial pressure.

Explanation:

mass of Aluminum produced = = 2.647 kg

moles of Oxygen = 73.53 moles

Given

5.0 kg Al₂O₃

Required

moles of Oxygen

Solution

The aluminum oxide gets decompose into aluminum and oxygen gas.

Reaction :

2Al₂O₃(s)⇒ 4 Al(s) + 3O₂(g)

mol of Al₂O₃(MW=102 g/mol) :

= mass : MW

= 5000 g : 102 g/mol

= 49.02 moles

From the equation, mol ratio of Al₂O₃ : O₂ = 2 : 3, sol mol O₂ :

= 3/2 x mol Al₂O₃

= 3/2 x 49.02

= 73.53 moles

mol Al :

= 4/2 x mol Al₂O₃

= 2 x 49.02

= 98.04 moles

Mass Al :

= mol x Ar Al

= 98.04 x 27 g/mol

= 2647.08 g

= 2.647 kg