Which type of organism is a prokaryote?

OA) plant

OB) animal

OC) fungus

OD) bacterium​

Answer:

14) A generator uses a rotating magnetic field and an electric motor uses a non-moving magnetic field.

15) Copper wire

Explanation:

The electric motor is  device that that converts electrical energy into mechanical energy. The armature and coil are positioned between two powerful magnets with a split ring commutator and carbon brushes. A cell is connected to the carbon brushes.

If the armature of the electric motor is made to rotate, it will act as a generator delivering current at the terminals.

An insulator is a material that does not allow electric current to pass through it. Copper allows the passage of electric current hence it is not an insulator.

Answer:  = 0.01

Explanation:1 centiliters = 0.01 liters using the online calculator for metric conversions.

Answer:

d. it’s reduced

Explanation:

An oxidation-reduction reaction, commonly known as REDOX reaction is a type of reaction that involves the transfer of electrons from one atom to another characterized by a change in oxidation number. The atom that loses electrons is said to be OXIDIZED while the atom that gains electrons is said to be REDUCED.

Therefore, in this question describing the half reaction of an oxidation reduction to show that iron atom (Fe) gains electrons. This indicates that the IRON atom is being REDUCED because it's oxidation number will reduce after gaining electrons.

Based on the mole ratio of the reaction, 4 grams of hydrogen and 32 grams of oxygen will combine to form 36 grams of water; option A

The mole ratio of a reaction is the ratio in which the moles of reactants combine to form products.

The mole ratio of a reaction is obtained from the balanced equation of the reaction.

The balanced equation of the reaction between hydrogen and oxygen is given below:

Based on the equation of the reaction, 2 moles of hydrogen combines with 1 mole of oxygen to form 2 moles of water.

4 grams of hydrogen = 2 moles of hydrogen

32 grams of oxygen = 1 mole of water

Mass of 2 moles of water = 2 * 18 g

Mass of 2 moles of water = 36 g of water.

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Answer:

a milllion moles

Explanation:

Answer:

In carbon there are 12 atoms.

Explanation:

You need to multiply the coefficient, in this case the coefficient is a 4 to Carbon's (C) Subscript which is 3, to find out how many atoms it has. (4)(3)=12

Answer:

D

Explanation:

I may need a photo but D seemed the most logical

The volume of water that would overflowed out of the tub is directly related to the volume of the object submerged on it. Thus it depends on the mass and density of the object.

The Greek mathematician and inventor Archimedes discovered the physical law of buoyancy, which states that any body completely or partially submerged in a fluid (gas or liquid) at rest is subject to an upward, or buoyant, force whose magnitude is equal to the weight of the fluid displaced by the body.

The volume of fluid that has been displaced is equal to the volume of an object that is completely submerged in the liquid or to the portion of the volume below the surface for an object that is only partially submerged.

The buoyant force's strength is equal to the weight of the fluid that has been dispersed. A body floating in a liquid or gas experiences an analogous buoyant force.

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Answer:

Paper

Explanation:

This is because out of all of the above it is the only physical substance

Answer:

3.37 × 10²³ molecules

Explanation:

Given data:

Mass of C₆H₁₂O₆ = 100 g

Number of molecules = ?

Solution:

Number of moles of C₆H₁₂O₆:

Number of moles = mass/molar mass

Number of moles = 100 g/ 180.16 g/mol

Number of moles = 0.56 mol

Number of molecules:

1 mole contain 6.022 × 10²³ molecules

0.56 mol × 6.022 × 10²³ molecules /1 mol

3.37 × 10²³ molecules

Energy conversion takes place during the far Gravitational Potential Energy to Kinetic Energy.

Kinetic energy = total energy - potential energy.

The total energy of a system is the addition of kinetic and potential energy of the system. Kinetic energy can be regarded as a form of energy posses by an object when it's in motion.

Total energy = kinetic energy + potential energy.

Hence, in this question when the statue breaks off and falls to the sidewalk below gravitational potential energy is converted to kinetic Energy.

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Answer:

Gravitational potential energy to kinetic energy

Explanation:

Answer:

Explanation:

A Chemical Equation tells the story of a chemical reaction. Reactants are the starting substances in the reaction while Products are the new substances that are formed. The large numbers in front of some of the formulas are called Coefficients. These numbers are used to Balance the equation because chemical reactions must obey the Law of Conservation of Matter. The number of atoms of each element on both sides of the equation must be Equal because matter  cannot be Created or Destroyed. When balancing equations, the only numbers that can be changed are Coefficients; remember that Subscripts must never be changed in order to balance an equation.

Q1) 4Al + 3O2 ---> 2Al2O3

Q2) C3H8 + 5O2 -----> 3CO2 + 4H20

Q3) P4 + 3O2 -----> 2P2O3

Q4) 2KNO3 -----> 2KNO2 + O2

Q5) 3O2 + CS2 ------> CO2 + 2SO2

Try the rest out and tell me did you understand it?

Answer:

it stores water for the cell

Answer:

Conduction is one of the three main ways that heat energy moves from place to place. The other two ways heat moves around are radiation and convection. Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules

Explanation:

Answer:

First one: Yes, It can be negative.

Explanation:

First one: The reason you can have negative acceleration is that acceleration can slow down, or decelerate, causing the negative acceleration.

Answer: np

Explanation:

Correctly matched are :

A landslide is also called a land slip. It refers to several forms of mass wasting and may include a wide range of ground movements. They occur in a variety of environments characterize by gentle and steep slope gradients.

The mudflow is a mixture of rocks and soil along with water. While a creep is a slow downloads movement of rocks and soil.

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Each reaction has its own characteristics which can be determined from the reactants and products

Every chemical reaction involves a compound consisting of reactants and products

Reactants are compounds that react and form new compounds called products

There are several forms of reactions that can occur, including single replacement, double replacement, synthesis, decomposition, etc.

A. substances after the arrow are called 1 products

The product compounds in this reaction are: CO₂ + H₂O

B. which substances are the reactants : sodium + water

and The product compounds : sodium hydroxide + hydrogen gas

Reaction

2Na(s) + 2H₂O → 2NaOH(aq) + H₂(g)

C. Mg + Fe₂O₃ → Fe + 3 MgO is an example of single replacement :one element replaces the other elements of a compound to produce new elements and compounds

D. Ca(OH)₂ + Al₂(SO₄)₃ → CaSO₄ + Al(OH)₃  is an example of double replacement : there is an ion exchange between two ion compounds in the reactant to form two new ion compounds in the product

E. PbSO₄->PbSO₃ + O₂ is an example of decomposition : One compound breaks down into 2 components

F.C₂H₄ + O₂ → CO₂ + H₂O is an example of combustion : when Oxygen combines with hydrocarbon

Answer:

If the mass stays constant the object's density decreases as the volume increases. ... Because the property of density is a constant for all variables, density can be used to identify the material an object is made of.

Explanation:

Shift to reactants(left)

A buffer solution is a solution that can maintain a good pH value due to the addition of a little acid or a little base or dilution.

The buffer solution can be acidic or basic

Acid buffer solutions consist of weak acids and their salts.  

A buffer solution of NaC2H202    and HC2H2O2 (acetic acid) is included in the acid buffer

So :

a slight addition of acid (H⁺) will be balanced by the conjugate base

the addition of a small base (OH⁻) will be balanced by the weak acid

With the addition of acid (H +), the equilibrium will shift to the left, in the formation of CH3COOH. The added acid will be neutralized by the conjugate base component (CH3COO−).

Answer:

Hydrocarbons

Explanation:

Answer:

Monomers

Explanation:

Answer:

the atoms of the original substances gain, lose and even share their very own electrons. write the symbols of the elements that form the compound. Write down the valency, and lastly go over valencies. This is all I got so far. I hope this helps

Explanation:

Explanation:

arranged by their number of protons rather than their atomic mass

Answer:

The human being sometimes exploits the resources that other living organisms need to survive. This is how competition for the environment increases and many species on this planet are at risk of extinction.

Explanation:

An example of this is how humans exploit mambu canes for commercial products, such as sweets and even toys, thus generating that the panda bear species does not have a food resource to survive.

Moles of Sulfuric acid- H₂SO₄ needed to react completely : 3.2 moles

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction(balanced)

2LiOH + H₂SO₄ → Li₂SO₄ + 2H₂O

From the reaction equation above, the reaction coefficient shows the mole ratio of reagents and products

moles of Lithium hydroxide-LiOH = 6.4 moles

mol ratio of LiOH : H₂SO₄ = 2 : 1, so mol H₂SO₄ :

[tex]\tt moles~H_2SO_4=\dfrac{1}{2}\times 6.4=3.2[/tex]

Answer:

E = 0.994 J

Explanation:

Given that,

Total no of photons, [tex]n=1.5\times 10^{13}[/tex]

The wavelength of gamma radiation, [tex]\lambda=3\times 10^{-12}\ m[/tex]

We need to find the total energy in given no of photons. The formula for the energy of a photon is given by :

[tex]E=\dfrac{hc}{\lambda}[/tex]

For n photons,

[tex]E=\dfrac{nhc}{\lambda}\\\\E=\dfrac{1.5\times 10^{13}\times 6.63\times 10^{-34}\times 3\times 10^8}{3\times 10^{-12}}\\\\=0.994\ J[/tex]

So, the total energy is 0.994 J.

The average atomic mass of chromium to 3 decimal points is 52. 055 g. mol.

"The weighted average mass of the atoms in a naturally occurring sample of an element is the average atomic mass, also known as atomic weight."

Given the different isotopes of chromium.

The four isotopes of chromium are cr-50, cr-52, cr-53 cr-54.

The average atomic mass will be

Let us take the weighted average of your isotopes:

50 × 0.0434 + 52 × 0.8379 + 53 × 0.095 + 54 × 0.0237 = 52. 055 g.

Thus, the average atomic mass of chromium is 52. 055 g.

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Answer:

True

Explanation:

At the end of each bronchiole is a cluster of little air sacs called alveoli. Alveoli are wrapped in tiny blood vessels called capillaries. The air you breathe in fills these air sacs with oxygen-rich air. This is where the exchange of gases occurs.

The reaction proceed more quickly when the surface area is increased because the frequency of collision increases.

Collision theory states that for a chemical reaction to proceed, it should achieve these conditions-

Increasing the surface area increases the probability of effective collisions. It thus increases the probability of the three conditions being achieved and results into increase in the frequency of collision and thus increases the rate of reaction.

Therefore, the reaction proceed more quickly when the surface area is increased because the frequency of collision increases.

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Answer:

3 Is D

Explanation: