Which particle diagram represents a mixture?

( i hope you can read it)

Answer:

true

Explanation:

As mentioned above, the moon does not have the same composition as the Earth, and while some of the elements present on the moon are the same, this is likely because of the moon’s formation (the Giant-Impact Theory). In general, this different in composition means that the moon cannot have an atmosphere because it is not geologically active.

Answer: pretty sure it B

Explanation:

Answer:

the answer is b hope this helps

Explanation:

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Dual wave particle nature of light  can be regarded as mechanism that says light and matter will also has the properties of  waves as well as that of  particles.

Some of the properties of wave that light has are:

Therefore, duality means have both characteristics of light and wave

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Answer:

Protons, neutrons, and electrons are the three main subatomic particles found in an atom. Protons have a positive (+) charge. An easy way to remember this is to remember that both proton and positive start with the letter "P." Neutrons have no electrical charge.

Answer:

Protons, positive charge

Neutrons, neutral

Electrons, negative charge

Explanation:

Answer:

about three weeks

Explanation:

because after a full moon, which is about 21 days, it comes to a third quarter moon

Answer:

Cells are the basic building blocks of living things. The human body is composed of trillions of cells, all with their own specialised function. Cells are the basic structures of all living organisms. Cells provide structure for the body, take in nutrients from food and carry out important functions.

Answer:

In a survey of a group of people, it was found that 60 0f them have

business, 45 have government jobs, 125 have farming, 27 have business

only, 15 have government job only, 10 have business and government

job only, 5 have government job and farming only.

i) How many people have all the profession?

ii) How many people were there in a survey?

Answer:

cell,brain,tissue

Explanation:

Displacement is defined as the distance, in any direction, of an object relative to the position of another object. Physicists use the concept of a position vector as a graphical tool to visualize displacements. A position vector expresses the positionof an object from the origin of a coordinate system

Answer:

Pick a reference point on the line to be the zero position. Determine the direction and measure the distance from zero in standard units.

Explanation:

Answer:

2 atoms

Explanation:

Because it contain one double bond

Answer:

D. Contour lines.

Explanation:

The primary difference is that they show elevation in detail. Characteristics of topographic maps include: they show elevation using contour lines. Put simply, a contour line is a line which joins points of equal elevation above sea level.

Answer:

if hyper its probaly because the have ADHD which is a type of drug that helps people with behavior disorders . the might have ticks wich is something that people can not control.

Explanation:

Answer:

How do atoms give off light?

Atoms emit light when they are heated or excited at high energy levels. The color of light that is emitted by an atom depends on how much energy the electron releases as it moves down different energy levels. ... It shows the electron moving down energy levels.

Explanation:

Answer:

hhhsstyi chick to yay to today do y'all

Answer:

 ¹₀n

Explanation:

The given expression is:

          ²⁷₁₃Al      +     ₐᵇT   →   ²⁴₁₁Na    +    ⁴₂He

This expression is typical of nuclear reactions. To balance this expression we must conserved the mass number and the atomic number.

The mass number is the superscripts and the atomic number is the subscript;

 Now;

 conserving mass number:

             27 + b  = 24 + 4

             27 + b  = 28  

                   b  = 28 - 27  = 1

conserving the atomic number;

            13 + a  = 11 + 2

             13 + a  = 13

                    a  = 0

So;

The particle T is a neutron    ¹₀n

Answer:

The chemical energy in a substance is determined by the potential energy of the bonds of the products formed when it reacts

Explanation:

The mass, in kg, of Sulfur produced : 2.072 kg

Given

V = 8.56 kL = 8560 L

P = 175 kPa = 1,73 atm

T = 250 + 273 = 523 K

Required

mass of Sulfur produced

Solution

mol of H₂S :

[tex]\tt n=\dfrac{PV}{RT}\\\\n=\dfrac{1.73\times 8560}{0.082\times 523}\\\\n=345.3[/tex]

mol of Sulfur based on mol  H₂S as a limiting reactant( excess Sulfur  dioxide)

From equation, mol ratio  H₂S : S = 16 : 3, so mol S :

[tex]\tt \dfrac{3}{16}\times 345.3=64.74[/tex]

Mass S(Ar = 32 g/mol) :

= mol x Ar s

= 64.74 x 32

= 2071.68 g = 2.072 kg

Answer:

Explanation:

21:B 22:B

Answer:

i would say B? Im sorry if im wrong

Explanation:

i think that because Catabolic reactions release energy, while anabolic reactions use up energy. Anabolism is the opposite of catabolism.

Answer:

B) In anabolism, energy is absorbed.

Answer:

I think B is the answer so hope

Answer:

It's C

Explanation:

It takes 21.3 days

Given

5 hr = 8 kg Alcohol

Required

Days to consume 1000 kg of glucose

Solution

Alcoholic fermentation⇒ glucose produces ethanol and carbon dioxide,

C₆H₁₂O₆ → 2 C₂H₅OH + 2CO₂

mol ethanol :

[tex]\tt \dfrac{5000~g}{46~g/mol}=108.7~moles[/tex]

moles of glucose to produce 108.7 moles ethanol :

[tex]\tt \dfrac{1}{2}\times 108.7=54.35[/tex]

54.35 moles = 5 hours

moles of 1000 kg of glucose :

[tex]\tt \dfrac{10^6~g}{180~g/mol}=5555.5~moles[/tex]

So for 5555.5 moles, it takes :

[tex]\tt \dfrac{5555.5}{54.35}\times 5~hours=511.085~h=21.3~days[/tex]

Answer:

a sea of electrons

Iron metal has a sea of electrons.

Iron metal is an element which possesses a sea of electrons as a result of it

containing cations which are usually surrounded by electrons which move at

a very fast pace .

This property makes Iron metal to be reactive when exposed to air( oxygen)

and it then forms various compounds such as Iron(II) oxide, Iron(III) oxide and

rust.

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Answer:

The Mitochondria

Explanation:

Mitochondria are membrane-bound cell organelles that generate most of the energy required to power the cell's organic chemistry reactions. Energy created by the mitochondria is kept in a tiny molecule known as  adenosine triphosphate (ATP).

Answer:

Explanation: I can't give you the answer you with the sentence but i will help you the best i can

One qualitative measure of the strength of an acid or a base solution is the pH scale A logarithmic scale that relates the concentration of the hydrogen ion in solution.

The ability for a substance to flow is fluidity.

Only liquid and gaseous substances have the ability to flow from one point to other as they have weak intermolecular force in it.

Fluidity is the quantity which gives idea about the ability of that substance to flow. At normal conditions at room temperature, any substance has the tendency to distort its shape in order to flow or take the shape of the container it is enclosed in.

Hence the ability for a substance to flow is fluidity.

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Answer:

a small medical thermometer with a short but finely calibrated range, for taking a person's temperature.

Answer:

Thermometer which are used in clinical to measure the temperature of human body is called clinical thermometer.

Answer:

Your answer is going to be B. the burning of fossil fuels

Explanation:

This is because carbon monoxide is extremely toxic for us humans. An example of this could be pollution. Hope this helps! :)