Changing the size and shapes of wood would be a chemical change.
O True
O False

Answers

Answer 1

Answer:

False.

Explanation:

False because there's no chemicals making change. its a physical change


Related Questions

Calculate the molecular weight of guanylate at pH 7. Show your work. Draw the structures of three different tautomers of hypoxanthine. One of the nonstandard nucleotides that appears moderately often in rRNA and tRNA is dihydrouridine. Which carbon atoms within the uracil moiety of this nucleotide have two hydrogens each attached to them

Answers

Answer:

Explanation:

The molecular formula for Guanylate is [tex]\mathbf{C_{10} H_{14} N_5O_8 P}[/tex]

This is calculated by the addition of the atomic weight of all the atoms taking part in the molecule.

i.e. (10 × C) +  (14 × H) + (5 × N) + ( 8 × O) + (1 × P)

= (10 × 12) +  (14 × 1) + (5 × 14) + ( 8 × 16) + (1 × 30)

= 120 + 14 + 70 + 128 + 30

= 362 g/mol

The diagram for the tautomers of hypoxanthine can be seen in the image attached below.

Dihydrouridine is available and can be seen in tRNAs and rRNAs. It is an exceptionally preserved and adjusted base. It is a pyrimidine nucleoside that is shaped by the expansion of two hydrogen atoms to uridine. By the expansion of two hydrogen atoms to uridine makes it completely soaked and no presence of any two-fold or double bond.  

Catalytic reduction of carbon-carbon double bonds in Dihydrouridine synthase occurs at positions 5 and 6 on the uridine base.  

Hence, 5 and 6 carbon particles inside the uracil moiety of this nucleotide have two hydrogens each connected to them.

Moby eats three-sixths of a pizza. Which fraction is equivalent to three-sixths?​

Answers

Answer:

1/2

Explanation:

Half of 6 is 3 so therefore it is a half.

Set of degenerate orbital in germanium

Answers

Answer:

Which set of orbitals are degenerate?

Degenerate is used in quantum mechanics to mean 'of equal energy. ' It usually refers to electron energy levels or sublevels. For example, orbitals in the 2p sublevel are degenerate - in other words the 2px, 2py, and 2pz orbitals are equal in energy, as shown in the diagram.

Explanation:

Answer:

Electron orbitals having the same energy levels are called degenerate orbitals, For example, orbitals in the 2p sublevel are degenerate - in other words the 2px, 2py, and 2pz orbitals are equal in energy.

how many moles of C8 H18 are present in a 546.23 gram sample?​

Answers

Answer:

Given:

Compound C8H18

mass of compound- 546.23 gram

To find:

number of moles =?

Solution:

let's find out the molar mass of C8H18= 12×8+18×1 = 114 gram/mole

Number of moles= given mass/molar mass

=546.23/114

= 4.7818436487 moles.

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Which one is not an ore of copper
1 Azurite

2 Malachite

3 Haematite

4 Chalcopyrite

Answers

answer: malachite!!!!

hope this helps!

How does air flow when a low-pressure center occurs in the
atmosphere?

Answers

Answer:

A

Explanation:

It is so because the low air pressure create vacuum and the air from high pressure area move toward the low air pressure.


Which answer would represent 0.001 moles?

Answers

Answer:

Which answer would represent 0.001 moles?

Among the theories of man's state of nature,which is/are the most credible/Reasonable?, ​

Answers

trees... they bring life nd without trees, there wouldnt be life

sea stars have radial symmetry .what does this mean?

Answers

Answer: Echinoderms usually have five appendages (arms or rays), but there are some exceptions. Radial symmetry means that the body is a hub, like a bicycle wheel, and tentacles are spokes coming out of it (think of a starfish).

Explanation:

Answer:

uesssf

Explanation:

hnjhj

PLEASE ANYONE KNOW IT!!!!!​

Answers

I think it's ethane. It might be wrong tho.

Hydrochloric acid reacts with sodium hydroxide to form water and sodium chloride. Hydrochloric acid is an extremely acidic, clear, corrosive liquid. Sodium hydroxide is a very basic white solid.

What can be known about the reactants of this reaction?

They will be clear.
They will not have the properties of sodium hydroxide or hydrochloric acid.
They will be corrosive.
They will have the properties of sodium hydroxide or hydrochloric acid.

Answers

The answer is C.

You're welcome!

PLS HELP, NEED HELLLLLPPPPP!!
How are air temperature and humidity related?

Colder air can hold more water vapor than warmer air.
Warmer air and colder air can hold the same amount of water vapor.
Warmer air can move faster than colder air.
Warmer air can hold more water vapor than colder air.

Answers

Answer:

I got you! I think the answer is D. Warmer air can hold more water vapor than colder air.

Explanation:

Although this statement is true, I could be incorrect, but it is unlikely. When warm air recieves more water vapor it expands while cold air becomes packed and unstable.

Hope this helps out, good luck! (¤﹏¤)

~ #LearnWithBrainly ~

Answer:

B!

Explanation:

When a sample of gas was placed in a sealed container with a volume of 3.35 L and heated to
75°C, the gas vaporized and the resulting pressure inside the container was 17atm. How
many moles of the gas were present?. Single line text.

Answers

Answer:

Explanation:What is the demand factor for three commercial ranges?

A strong beam of light is directed toward a tank filled with water. What caused the beam of light to change direction?

Answers

The bending occurs because light travels slower in a denser medium, which allows refraction. Since the light is passing from air (less dense) into water (more dense), it is bent more than normal.

When light travels from less dense air to denser glass or water, it slows down. Slowing down of a ray of light changes the direction of the ray of light.

What is Ray of light?

Light that travels in a straight line in one direction is called a ray of light. When a group of light emanates from a source, it is called a beam of light. A beam of light is defined as the path of a photon or a group of photons traveling through a space appearing as a column of light.

There are three types of light rays. They are

Incident raysReflected raysRefracted rays

Example of a beam is a beam of light with a pass from a laser or laser pointer. A beam of light is made up of particles called photons that carry specific amounts of energy. We cannot measure the length of a beam.

Thus, when light travels from less dense air to denser glass or water, it slows down. Slowing down of a ray of light changes the direction of the ray of light.

Learn more about Ray of light, here:

https://brainly.com/question/13851007

#SPJ2

Is it possible for a reaction with + ΔG° to still be spontaneous in the forward direction? Explain.

Answers

Answer:

See explanation.

Explanation:

Hello!

In this case, according to the thermodynamic definition of the Gibbs free energy:

[tex]\Delta G=\Delta H-T\Delta S[/tex]

In the scenario by which G>0 (nonspontaneous) it would be possible for reaction to have a G<0 (spontaneous) if:

- If H>0 and S>0, then the temperature should be increased until the process was entropy-driven for it to be possible.

- If H> and S<0, then it'd be impossible to have an spontaneous process.

- If H<0 and S>0 then the process was not spontaneous.

- If H<0 and S<0 it is possible if the temperature is not high enough to ensure the process is enthalpy-driven.

Best regards!

Polar bears are well adapted to the Arctic environment due to their white

fur coats. Which statement BEST explains why white coat color was

possibly favored by natural selection over other coat colors?

Answers

answer: white fur works as a camouflage against the white snow, allowing polar bears an advantage when hunting for food and hiding from predators

How many moles is 130g of CoCl2

Answers

Answer:

1 mol

Explanation:

The mass of CoCl2 is 129.83. 130 divided by the mass is 1. This is to convert the mass given to mols that exist in the sample.

A sealed 1.0L flask is filled with 0.500 mols of I_2 and 0.500 mols of Br_2. When the container achieves equilibrium the equilibrium constant is 1.10x10^{-2}. What is the equilibrium concentration of the product, IBr?

Answers

Answer:

[IBr] = 0.049 M.

Explanation:

Hello there!

In this case, according to the balanced chemical reaction:

[tex]I_2+Br_2\rightarrow 2IBr[/tex]

It is possible to set up the following equilibrium expression:

[tex]K=\frac{[IBr]^2}{[I_2][Br_2]} =0.0110[/tex]

Whereas the the initial concentrations of both iodine and bromine are 0.50 M; and in terms of [tex]x[/tex] (reaction extent) would be:

[tex]0.0110=\frac{(2x)^2}{(0.50-x)^2}[/tex]

Which can be solved for [tex]x[/tex] to obtain two possible results:

[tex]x_1=-0.0277M\\\\x_2=0.0245M[/tex]

Whereas the correct result is 0.0245 M since negative results does not make any sense. Thus, the concentration of the product turns out:

[tex][IBr]=2x=2*0.0249M=0.049M[/tex]

Regards!

Hydrogen peroxide with a concentration of 3.0 percent (3.0 g of H2O2 in 100 mL of solution) is sold in drugstores for use as an antiseptic. For a 10.0-mL 3.0 percent H2O2 solution, calculate (a) the oxygen gas produced (in liters) at STP when the compound undergoes complete decomposition and (b) the ratio of the volume of O2 collected to the initial volume of the H2O2 solution.

Answers

Answer:

a) 0.099 L

b) 9.9

Explanation:

Now, given the equation for the decomposition of H2O2;

2H2O2(l) ------> 2H2O(l) + O2(g)

Mass of H2O2;

percent w/v concentration = mass/volume * 100

volume = 10.0-mL

percent w/v concentration = 3.0 percent

mass of  H2O2 = x

3 = x/ 10 * 100

30 = 100x

x = 30/100

x = 0.3 g of H2O2

Number of moles in  0.3 g of H2O2 = mass/ molar mass

Molar mass of H2O2 = 34.0147 g/mol

Number of moles in  0.3 g of H2O2 = 0.3g/34.0147 g/mol

= 0.0088 moles

From the reaction equation;

2 moles of H2O2 yields 1 mole of oxygen

0.0088 moles of H2O2 = 0.0088 * 1/2  = 0.0044 moles of oxygen

If 1 mole of oxygen occupies 22.4 L

0.0044 moles of oxygen occupies 0.0044 *  22.4/1

= 0.099 L

b) initial volume of the H2O2 solution = 10 * 10-3 L

Hence, ratio of the volume of O2 collected to the initial volume of the H2O2 solution = 0.099 L/10 * 10-3 L = 9.9

The value of Avogadro number is

Answers

the value of Avogadro number is 6.02214076 × 10^24

Predict what will be observed in each experiment below. experiment predicted observation.

1. A student sees tiny bubbles clinging to the inside of an unopened plastic bottle full of carbonated soft drink. The student squeezes the bottle.

a. The bubbles will shrink, and some may vanish.
b. The bubbles will grow, and more may appear.
c. The bubbles won't change.
d. I need more information to predict what will happen to the bubbles.

2. A student has two unopened cans containing carbonated water. Can A has been stored in the garage () and can B has been stored in the fridge (). The student opens one can at the time, both cans make a fizz.

a. Can A will make a louder and stronger fizz than can B.
b. Can B will make a louder and stronger fizz than can A.
c. The fizz will be the same for both cans.
d. There is not enough information to predict which can will make the louder fizz.

Answers

Answer:

The correct answer is -

1.  a) The bubbles will shrink, some may vanish.

2. a) Can A will make a louder and stronger fizz than can B.

Explanation:

In the first question, it is given that the bottle is not opened and therefore, squeezing the bottle filled with a carbonated drink will increase the pressure on the carbonated liquid which forces the bubbles to dissolve or displace or vanish as it moves to empty space.

Thus, the correct answer would be - The bubbles will shrink, some may vanish

In the second question, there are two different conditions for two different unopened cans of carbonated water that are different temperatures one at the garage with higher temperature and one in the fridge at low temperature. As it is known that higher the temperature less will be solubility of gas in liquid so gas in can A will be less soluble which means it has more gas and it will make louder and stronger fizz than B which was stored at low temperature.

thus, the correct answer would be - Can A will make a louder and stronger fizz than can B.

seven carbon chain with CH3 attached to second and third carbon

Answers

Answer:

2,3-dimethylheptane.

CH₃ - CH - CH-CH₂-CH₂-CH₂-CH₂

           |        |

       CH₃    CH₃

Explanation:

Hello there!

In this case, according to the given instructions, it is possible to draw the organic chemical structure by connecting seven carbon atoms along the parent chain with two methyl substituents at the second and third carbon atoms; thus, the resulting structure is:

CH₃ - CH - CH-CH₂-CH₂-CH₂-CH₂

           |        |

       CH₃    CH₃

Furthermore, the name would be 2,3-dimethylheptane according to the IUPAC rules for nomenclature.

Best regards!

Please..................​

Answers

Sorry so what I think u should do is ask your teach or look up on how to do this problem

21 POINTS TO WHO EVER CAN ANSWER THIS

Explain why water is considered the "universal solvent".

Answers

It’s considered the “universal solvent” because water dissolves more substances than any other chemical.

Answer:

Explanation:

Water is capable of dissolving a variety of different substances, which is why it is such a good solvent. And, water is called the "universal solvent" because it dissolves more substances than any other liquid. This allows the water molecule to become attracted to many other different types of molecules.

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