Draw a schematic diagram of a circuit with an output device, a energy source and a controller.

Answers

Answer 1

Answer:

ch∪pαpi munαn0?

Explanation:


Related Questions

Question 2 (1 point)
An object's gravitational force depends primarily on the object's
a
density
mass
b
oc
momentum

Answers

Answer: An object's gravitational force depends primarily on the object's mass.

Explanation:

According to the Universal law of gravitation, every object whether is it is having large r small mass tends to exert a force on every other object, therefore this force is known as gravitational force.

Formula to calculate gravitational force is as follows.

[tex]F = \frac{G \times m_{1} \times m_{2}}{r^{2}}[/tex]

where,

F = Gravitational force

G = Gravitational constant = [tex]6.674 \times 10^{-11} m^{3}/kg s^{2}[/tex]

[tex]m_{1}[/tex] = mass of object 1

[tex]m_{2}[/tex] = mass of object 2

r = distance between the centers of the objects

Therefore, it means that gravitational force of an object primarily depends on an object's mass.

Thus, we can conclude that an object's gravitational force depends primarily on the object's mass.

If a particular ore contains 56.3 % % calcium phosphate, what minimum mass of the ore must be processed to obtain 1.00 kg k g of phosphorus?

Answers

Answer:

34.44 kg

Explanation:

First we convert 1.00 kg of phosphorus (P) into moles, using its molar mass:

1.00 kg ÷ 32 kg/kmol = 0.03125 kmol P

Then we convert 0.03125 kmoles of P into kmoles of Ca₃(PO₄)₂:

0.03125 kmol P * [tex]\frac{2kmolCa_3(PO_4)_2}{2kmolP}[/tex] = 0.0625 kmol Ca₃(PO₄)₂

Now we calculate the mass of 0.0625 kmoles of Ca₃(PO₄)₂:

0.0625 kmol Ca₃(PO₄)₂ * 310.18 kg/kmol = 19.39 kg

Finally we calculate the required mass of the ore, using the definition of content percentage:

% content = Mass of calcium phosphate / mass of ore * 100 %56.3 % = 19.39 kg / mass of ore * 100%Mass of Ore = 34.44 kg

Which of these equations represent reactions that could be used in constructing an electrochemical c
Check all that apply
CH. +202 C02 +2H,0
Cr + Cu? → Cr?++ Cu
2 Ag*+Fe + 2Ag +Fe2
CI+Ag → AgCI
NH, *H* NH,
RETRY

Answers

Answer:

Cr+Cu2 -> Cr2+Cu

2Ag+Fe->2Ag+Fe2

Explanation: I did the assessment

An electric kettle uses electrical energy to boil water. Energy from the electricity is transferred to the water, heating it up. An electric ice maker also uses electrical energy, but it freezes water to form ice. Since energy can’t be created or destroyed, and water loses potential energy when it freezes to form ice, what happens to the energy put into the ice maker and the energy released by the water?

Answers

Answer:

Since energy can’t be created or destroyed, and water loses potential energy when it freezes to form ice. The energy remains electrical but then changes to kinetic when Enough energy is released.

Explanation:

The excess electrical energy gained by water during ice forming process is removed as potential energy to maintain law of conservation of energy.

According to the principle of conservation of energy, energy can neither be created nor destroyed but can transformed from one form to energy.

The electrical energy used by the ice maker to freeze water works on the same principle of conservation of energy.

The electrical energy absorbed the water is used to lower the temperature of the water in order to form ice by removing heat from the water in form of potential energy. This happens to maintain the principle of conservation of energy.

Thus, the excess electrical energy gained by water during ice forming process is removed as potential energy to maintain law of conservation of energy.

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How many hydrogen atoms can be bonded to one carbon atom?
O A. 3
O B. 1
O C. 2.
O D. 4

Answers

Answer:

O D. 4

Explanation:

A carbon atom is an element that can be found in the atomic number 6th of the periodic table. It electronic configuration is 1s² 2s² 2p². It is a tetravalent and non metallic compound. In its outermost structure, Carbon needs four additional valence electrons to complete its octet structure. That is why hydrogen with only one electron can be bonded to one carbon atom in four different places making the carbon element obtain a tetrahedral shape.

Magnesium nitride, Mg3N, undergoes a thermo decomposition reaction to form magnesium metal and nitrogen gas.

a. True
b. False

Answers

Answer:

a. True

Explanation:

Magnesium nitride, Mg₃N, is a binary salt. Upon heating, it decomposes into magnesium metal and nitrogen gas. The unbalanced equation is:

Mg₃N(s) ⇒ Mg(s) + N₂(g)

We can balance it with the trial and error method. First, we will balance N atoms by multiplying Mg₃N by 2.

2 Mg₃N(s) ⇒ Mg(s) + N₂(g)

Then, we get the balanced equation by multiplying Mg by 6.

2 Mg₃N(s) ⇒ 6 Mg(s) + N₂(g)

240 g of water (specific heat = 4.186 J/g°C, initial temperature = 20°C) is mixed with an
unknown mass of iron (specific heat = 0.444 J/gºC, initial temperature 500°C). When
equilibrium is reached, the system has a temperature of 42°С. Find the mass of iron.

Answers

The answer for this would be 69.6

240 g of water (specific heat = 4.186 J/g°C, initial temperature = 20°C) is mixed with an unknown mass of iron (specific heat = 0.444 J/gºC, initial temperature 500°C). When equilibrium is reached,The answer for this would be 69.6

 

How do you find final temperature with specific heat?

You use q = mcΔT, but you assume aluminum = water and crack for This the final temperature.

We need to look up heat values (c) for aluminum and h20. This will uses 0.901 for aluminum and 4.18 use water

: (10)(130 - T)(0.901) = (200.0)(T - 25 (6)

Hence, The answer for this would be 69.6.  

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pls help i need help help

Answers

Answer:

and is capillaries

Explanation:

hope it helps

to find the mass in g of 3 moles Al .

Answers

Answer:

81 gm

Explanation:

The mass of 1 mole is 27 gSo, Mass of 3 moles of Aluminium would be 3 × 27 = 81 gm

Thus mass of 3 Moles of Aluminium is 81 gm.

PLEASE HELP, DUE AT 12:00

Answers

1. A 2. D 3. C 4. B are the answers

If only 0.186 g of Ca(OH)2 dissolves in enough water to give 0.230 L of aqueous solution at a given temperature, what is the Ksp value for calcium hydroxide at this temperature?

Answers

Answer:

[tex]Ksp=5.20x10^{-6}[/tex]

Explanation:

Hello there!

In this case, according to the solubility equilibrium of calcium hydroxide:

[tex]Ca(OH)_2\rightleftharpoons Ca^{2+}+2OH^-[/tex]

Whereas the equilibrium expression is:

[tex]Ksp=[Ca^{2+}][OH^-]^2[/tex]

It is firstly necessary to calculate the molar solubility given the grams and volume of the dissolved solute:

[tex]s=\frac{0.186g/(74.09g/mol)}{0.230L}=0.0109M[/tex]

Now, according to the Ksp expression, we plug in s as the solubility to obtain:

[tex]Ksp=(s)(2s)^2\\\\Ksp=(0.109)(2*0.0109)^2\\\\Ksp=5.20x10^{-6}[/tex]

Regards!

The Ksp value will be "5.20×10⁻⁶".

According to the solution equilibrium,

[tex]Ca(OH)_2 \rightleftharpoons Ca^{2+}+2OH^-[/tex]

Now,

The molar solubility will be:

→ [tex]s = \frac{\frac{0.186}{74.09} }{0.230}[/tex]

     [tex]= 0.0109 \ M[/tex]

hence,

The Ksp value will be:

→ [tex]Ksp = (s)(2s)^2[/tex]

By substituting the values,

          [tex]= (0.109)(2\times 0.0109)^2[/tex]

          [tex]= 5.20\times 10^{-6}[/tex]

Thus the above approach is right.

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Kantahan moko sa lobby ml tayo babae 11 years old mayhem folow me 908723751 Mobile Legends Bang bang​

Answers

Answer:

hi which language is this???

I can't understand

Answer:

Filipino hello pari omsim


Using the Lewis dot structures of magnesium and oxygen, predict the ionic formula

Answers

Answer:

(edit: nvm I figured it out, here is the answer)

Explanation:

Ions exists bound together in ionic formulae by electrostatic attraction then the ionic formula exists MgO.

What is meant by Lewis dot structures?

The diagrams known as Lewis structures, also referred to as Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures, depict the interactions between the atoms in a molecule as well as any lone pairs of electrons that may be present.

A chemical compound comprehended as an ionic compound in chemistry exists one that contains ions bound together by the electrostatic forces named as ionic bonding. The molecule exists often neutral despite containing both positively and negatively charged ions, or cations and anions. Ions exists bound together in ionic formulae by electrostatic attraction.

Magnesium and oxygen:

Cation [tex]$=\mathrm{Mg}^{2+}$[/tex]

Anion [tex]$=\mathrm{O}^{2-}$[/tex]

Net charge = + 2 - 2 = 0

Formula = MgO

Therefore, the ionic formula exists MgO.

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According to the following reaction, how many grams of
hydrobromic acid are needed to form 24.7 grams of bromine?

hydrobromic acid (aq) —>hydrogen (g) + bromine (1)

…grams hydrobromic acid

Answers

Answer:

25.1 g

Explanation:

Step 1: Write the balanced decomposition reaction

2 HBr(aq) ⇒ H₂(g) + Br₂(l)

Step 2: Calculate the moles corresponding to 24.7 g of Br₂

The molar mass of Br₂ is 159.81 g/mol.

24.7 g × 1 mol/159.81 g = 0.155 mol

Step 3: Calculate the moles of HBr needed to produce 0.155 moles of Br₂

The molar ratio of HBr to Br₂ is 2:1. The moles of HBr needed are 2/1 × 0.155 mol = 0.310 mol.

Step 4: Calculate the mass corresponding to 0.310 moles of HBr

The molar mass of HBr is 80.91 g/mol.

0.310 mol × 80.91 g/mol = 25.1 g

Scientist use models of the solar system to

1 avoid the use of incorrect data

2 prevent duplication of their ideals

3 help explain their ideas

4 make theories non-testable

Answers

i believe it is 3, help explain their ideas.

7
State two signification of melting?​

Answers

The two liquids are different and so the melting points are different only because one represents an intermediate stage. It was a melting-point suppression effect, just like salt and ice, but it was much larger than anyone on the team had thought possible.

Which image represents ether? Check all that apply.

Answers

Answer:

A) and D)

Explanation:

I just completed this assignment and these are the correct options!

In the given image, the compounds that represents ether are option 1 and 4, respectively.

Ether is a class of organic compounds that contain an oxygen atom bonded to two alkyl or aryl groups. The general formula for ethers is [tex]\rm R-O-R'[/tex], where R and R' are alkyl or aryl groups.

Compound 1 is 1-methoxypentane is an ether with the molecular formula [tex]\rm C_6H_{14}O[/tex]. It consists of a pentane chain (a straight chain of five carbon atoms) with a methoxy [tex]\rm (-OCH_3)[/tex]  group attached to the first carbon atom. Compound 4 is methoxyethane. It is an ether with the chemical formula [tex]\rm C_3H_8O[/tex]. The structure of methoxyethane consists of a ethane chain (a straight chain of two carbon atoms) with a methoxy [tex]\rm (-OCH_3)[/tex] group attached to the first carbon atom.

Therefore, compound 1 and compound 4 represents ether. The correct answer is option 1 and 4, respectively.

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match the molecular shapes to the correct Lewis structures


trigonal pyramid
trigonal planar
bent
tetrahedral
linear

Answers

Answer:

Match up correct answers:

1) trigonal planar

2) tetrahedral

3) trigonal pyramid

4) linear

Explanation:

(correct answers on portal and edmentum users)

Hope I was helpful, have a great day and good luck :)

AlH₃ - trigonal planar

CH₂F₂ - tetrahedral

PH₃ - trigonal pyramidal

O₃ - bent

What is a Lewis structure?

The valence shell electrons in a molecule are depicted in an extremely simplified manner by a Lewis Structure. It is used to demonstrate how the electrons in a molecule are positioned around particular atoms. Electrons are shown as dots or, in the case of a bond, as a line connecting the two atoms.

How do you determine the molecular shape?Depict the Lewis Structure.Determine if the electron groups are in bond pairs or are lone pairs by counting the number of electron groups. Keep in mind that lone pairs and bonds are both included in electron groups!The electron-group geometry is named. (Specify if it is octahedral, tetrahedral, trigonal-bipyramidal, or linear.)The molecular geometry is determined by examining the locations of the surrounding atomic nuclei. (Count the number of lone pairs)

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what is a major crack in the earth's surface?

Answers

Answer:

A crack in earth's crust is called a fault also known as a "fracture"

A crack in the earth's crust is called a fault.
Faults are also referred to as fractures.

a transverse wave moves a medium at an abtuse angle to the wave , true or false ?​

Answers

Answer:

True! A transverse wave does move a medium at an obtuse angle to the wave!!

Answer:

False

Explanation:

what is chemical name of ghee​

Answers

Answer. Chemical formula of ghee: (C17H33 Coo)3 C3H5 • Chemical Reaction: (C17H31Coo)3 C3H5 + 3H2 (C17H33 Coo)3 C3H5

The total pressure in a tank is filled with a mixture of gases : Oxygen, Helium, and Argon is 15.3 atm. The P(He) = 3.2 atm, P(O) = 7.4 atm, what is the P(Ar) in the tank?

Answers

Answer:

4.7 atm

Explanation:

From the question given above, the following data were obtained:

Total pressure (P) = 15.3 atm

Pressure of Helium, P(He) = 3.2 atm

Pressure of Oxygen, P(O) = 7.4 atm

Pressure of Argon, P(Ar) =?

The pressure of Argon, P(Ar) in the tank can be obtained as illustrated below:

P = P(He) + P(O) + P(Ar)

15.3 = 3.2 + 7.4 + P(Ar)

15.3 = 10.6 + P(Ar)

Collect like terms

15.3 – 10.6 = P(Ar)

4.7 = P(Ar)

P(Ar) = 4.7 atm

Therefore, the pressure of Argon, P(Ar) in the tank is 4.7 atm

Calculate the number of molecules in 14.3 mol H2O.

Answers

Answer:

I don't get it

Explanation:

please explain more about question

does the moon really change shape? why

Answers

The Moon doesn't emit (give off) light itself, the 'moonlight' we see is actually the Sun's light reflected off the lunar surface. So, as the Moon orbits the Earth, the Sun lights up different parts of it, making it seem as if the Moon is changing shape.

1. How many grams of sodium carbonate must be weighed out in order to make 2.5 kg of a 35.0%
(w/w) solution?

Answers

Answer:

... x M x V. • Example: Prepare 800 mL of 2 M sodium chloride. ... solutions are indicated by w/v% and are defined as the grams of solute per ...

15 pages·906 KB

Which of the following indicates that a chemical equation is balanced?
a. The numbers of atoms of each element are the same on both sides of the equation.
b. All of the coefficients are the same.
C. The numbers of molecules on each side of the equation are equal.
d. The sums of the coefficients on each side of the equation are equal.

Answers

d. because to balance an equation all the elements have to have the same number

Calculate the value of ΔG° at 25°C for the formation of POCl3 from its constituent elements,

P2 (g) + O2 (g) + 3Cl2 (g) --> 2POCl3 (g)

A. -606.2 kJ/molrxn

B. +1108.7 kJ/molrxn

C. -1108.7 kJ/molrxn

D. +606.2 kJ/molrxn

Answers

The correct answer is

C. -1108.7 kJ/mol rxn

From the table values, the standard Gibbs free energy change for the formation of POCl₃ is -1108.7 kJ/mol

What is Gibbs free energy ?

We can calculate ΔG° for the reaction using the following formula:

ΔG° = ΣnΔG°f(products) - ΣnΔG°f(reactants)

where ΔG°f is the standard Gibbs free energy of formation for each compound and n is the stoichiometric coefficient of each compound in the balanced chemical equation.

We can look up the values of ΔG°f for each compound in tables of thermodynamic data. At standard conditions (25°C and 1 atm pressure), the values are:

ΔG°f (POCl₃) = -558.9 kJ/mol

ΔG°f (P₂) = 0 kJ/mol

ΔG°f (O₂) = 0 kJ/mol

ΔG°f (Cl₂) = 0 kJ/mol

Plugging these values into the formula, we get:

ΔG° = (2 mol)(-558.9 kJ/mol) - (1 mol)(0 kJ/mol) - (1 mol)(0 kJ/mol) - (3 mol)(0 kJ/mol)

ΔG° = -1117.8 kJ/mol

Therefore, the correct option  is C. -1108.7 kJ/molrxn. Note that this answer differs slightly from the calculated value because the given choices are rounded to one decimal place.

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TRUE or FALSE: The only way to see a recessive trait is to inherit 2 recessive
alleles.

Answers

Answer:

false it's more than two

In a rush, a student only measured the mass of the empty beaker once before beginning
the experiment and one more time after the entire experiment was finished. The mass of
the empty beaker was found to be 0.123g less at the end of the experiment. What
happened?

Answers

Answer:

The student measured the cup and got an incorrect answer

Explanation:

because he was in a rush.

what type of sugar has the largest surface area

a) powered/icing
b) raw
c) cubed
d) granulated

Answers

Answer:

d.) granulated

Because the granulated sugar has a greater surface area.

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