The distortion changing the shape of enzyme molecules which occurs at high temperatures is known as

Answer:

A physical property is an aspect of matter that can be observed or measured without changing its chemical composition. Examples of physical properties include molecular weight.

A chemical property may only be observed by changing the chemical identity of a substance. In other words, the only way to observe a chemical property is by performing a chemical reaction

Explanation:

Properties of matter

The properties of matter are classified into; (I) Physical and, (ii) Chemical properties.

Physical properties: A physical property is an aspect of matter that can be observed or measured without changing its chemical composition. Examples of physical properties include molecular weight, density, color, melting and boiling point, etc.

Chemical properties: A chemical property may only be observed by changing the chemical identity of a substance. In other words, the only way to observe a chemical property is by performing a chemical reaction. This property measures the potential for undergoing a chemical change. Examples of chemical properties include and oxidation states, acidic or basic properties, flammability, heat of combustion, etc.

Answer:

D

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The definition of colloids is very disputed on whether or not it is homo/heterogenous. I wouldn't go with this answer, but its based on what you learned it was. At a microscopic level its hetero but at a macroscopic its homo.

They do have somewhat large dispersed particles but this better describes suspensions

They don't easily settle out.

And in order to be a mixture, they are made up of at least two substances

D is likely the best answer out of the bunch.

Colloids are made up of at least two substances. Therefore, option d is correct.

A colloid can be described as a mixture in which one substance consisting of dispersed insoluble particles is throughout another substance. The particles should be dispersed in a liquid. The term colloidal suspension can be referred to unambiguously as the overall mixture.

A colloid exhibits a dispersed phase and a continuous phase. The dispersed phase particles have a diameter of about 1 nm to 1 μm. Some colloids are translucent due to the Tyndall effect and other colloids can be opaque or have a slight color.

Hydrocolloids can be described as certain chemicals that are colloidally dispersible in water. Therefore becoming very "soluble" they can change the rheology by raising the viscosity.

A colloid possesses a dispersed phase and a continuous phase. A solute in a solution is individual molecules, whereas colloidal particles can be bigger.

Learn more about colloids, here:

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Answer:

D

Explanation:

Answer:

Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.

How are physical and chemical changes similar and different? (compare and contrast) (Physical and chemical changes are similar because matter experiences a change in state, Physical changes are different because matter remains the same substance, just in a different state, whereas chemical changes change the matter

Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding. Often, physical changes can be undone, if energy is input. The only way to reverse a chemical change is via another chemical changes.

Explanation:

Answer:

independent variable - the thing you change

dependent variable - the thing you measure

control variables - the things you keep the same

Answer:

a copper pipe can't simply be welded directly to a lead pipe because lead has a far lower melting point than copper and thus the lead will melt before the copper can even be effected.

Explanation:

A lead pipe is a pipe that's made of lead and is usually used in distribution of potable water to connect a water main source to a user's preferred area.

Now, a copper pipe can't simply be welded directly to a lead pipe because lead has a far lower melting point than copper and thus the lead will melt before the copper can even be effected.

Lead has a melting point of 327.5° C while copper wire has a melting point of 1082.778 °C

Answer:

Block A - 19.3

Block B - 0.64

Block C - 0.70

Block D - 0.917

Block E - 3.53

Hope this helps :)

Answer:

Block A - 19.3

Block B - 0.64

Block C - 0.70

Block D - 0.917

Block E - 3.53

Explanation:

Answer:

Explanation:

Practical Applications of Sublimation

Sublimation and erosion cause ablation, a process that wears down glaciers. Sublimation of iodine may be used to reveal latent fingerprints on paper. Sublimation is used to purify compounds. ... Because dry ice sublimates so readily, the compound is used to produce fog effects.

(a)- Time

(b)- Heat produced(i guess)

(c)- Material

this is what I think, hope it helps

Answer:

4.05/28=0.144g/ml

Explanation:

SOMEONE ANSWER DA QUESTON

Answer:

conserve mass.

Explanation:

Answer:

Subconscious - psychic activity just below the level of awareness

Election - the act of electing someone

Explanation:

I hope this helped enough, good luck in chemistry!

Answer:

4

Explanation:

Answer:

4

Explanation:

So the atomic number is still the proton number and it is always smaller than the atomic mass so the proton number is 4.

HOPE IT HELPED

Answer:14

explanation: For CH3F, we have a total of 14 valence electrons. Hydrogen always goes on the outside of Lewis structures. And then Carbon is less electronegative than Fluorine, so let's put the Carbon in the center and the Hydrogens on the outside there, and the Fluorine on the top. We have a total of 14 valence electrons for CH3F.

Answer:

Average atomic mass of Cl = 35.48 amu

Average atomic mass of B  = 10.8  amu

Average atomic mass of Ag  = 107.96 amu

Explanation:

1)

Given data:

Abundance of Cl-35 = 75.8%

Abundance of Cl-37 = 24.2%

Average atomic mass = ?

Solution:

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (75.8×35)+(24.2×37) /100

Average atomic mass =  2653 + 895.4 / 100

Average atomic mass  = 3548.4 / 100

Average atomic mass  = 35.48 amu

2)

Given data:

Abundance of B-10 = 19.8%

Abundance of B-11 = 80.2%

Average atomic mass = ?

Solution:

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (19.8×10)+(80.2×11) /100

Average atomic mass = 198  +882.2  / 100

Average atomic mass  = 1080.2 / 100

Average atomic mass  = 10.8  amu

3)

Given data:

Abundance of Ag-107 = 52%

Abundance of Ag-109 = 48%

Average atomic mass = ?

Solution:

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (52×107)+(48×109) /100

Average atomic mass =  5564 +5232  / 100

Average atomic mass  = 10796 / 100

Average atomic mass  = 107.96 amu

Answer:

True

Explanation:

Homo = same

Hetero = different

Answer:

D. Sound waves transfer energy through the vibration of particles in mediums.

Explanation:

It can be concluded from the experiment that sound waves will only propagate through vibration of particles in mediums.

The particles of the medium is the air.

Option A ; Sound waves are transverse waves; while this might be true or not, we cannot ascertain that through this experiment described.

Option B: this negates the conclusion that should be drawn from the experiment.

Option C: we cannot draw this sort of conclusion from such an experiment as this.

Therefore, the right choice is that, sound waves transfer energy through the vibration of particles in mediums.

Answer:

Explanation:

B . Is the correct answer

Answer:

Each atom is left with a complete outer shell. An ionic bond forms between a metal ion with a positive charge and a nonmetal ion with a negative charge.

HOPE DAT HELPS BRO!

Answer: When you turn a light on it becomes bright :)

In electrical wiring, a light switch is a switch most commonly used to operate electric lights, permanently connected equipment, or electrical outlets. Portable lamps such as table lamps may have a light switch mounted on the socket, base, or in-line with the cord. Manually operated on/off switches may be substituted by dimmer switches that allow controlling the brightness of lamps as well as turning them on or off, time-controlled switches, occupancy-sensing switches, and remotely controlled switches and dimmers. Light switches are also found in flashlights, vehicles, and other devices.

Answer:

0.123 M

Explanation:

Molarity, which is molar concentration can be calculated by using the formula;

Molarity = number of moles (n) / Volume (V)

Number of moles of NH4NO3 can be calculated by using;

Mole = mass (M) / Molar mass (MM)

Since atomic mass of N= 14, H=1, O=16

Molar mass of NH4NO3 = 14 + 1(4) + 14 + 16(3)

= 14 + 4 + 14 + 48

= 80g/mol

1 pounds = 454g

2.13 pounds= 2.13 × 454 g

= 967.02g

Hence; mole of NH4NO3 = 967.02/80

= 12.09moles

Molarity of NH4NO3 in water (solution) = number of moles of NH4NO3 ÷ volume of water

1 gallon = 3.79Litres

26gallons = 26 × 3.79 litres

= 98.54 Litres

Therefore, Molarity = 12.09/98.54

Molarity of NH4NO3 solution = 0.1226

= 0.123M or mol/L

Answer:

D

Explanation:

Because do all of that and then you do a conclusion

Answer:

precipitate

Explanation:

pretty sure it's right but sorry if i'm wrong:)

Answer:in can

Explanation:

Answer:

What are your subjects you need help with?

Answer:

tell me the question i cant see the picture

Explanation: