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Helga [31]
3 years ago
12

Jayden says that the dentist can shine a special light on his teeth that will make his teeth become whiter. Can light change Jay

den’s teeth?
Chemistry
1 answer:
arsen [322]3 years ago
5 0

Answer:

No

Explanation:

This is because light cannot not whiten Jayden's teeth but light can change materials by hearing it up. There are some substances or tooth paste that can be use to whiten the teeth because of the content they are made off which whitens the teeth. Some of it include baking soda, hydrogen peroxide toothpaste, tumeric toothpaste, toothpaste that contain fluoride.

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Which kelvin temperature is equal to -73 Celsius
ira [324]

The kelvin form of -73 C is 200.15

6 0
3 years ago
A substance that cannot be chemically broken down into simpler substances is a an electron. b a heterogeneous mixture. c an elem
antiseptic1488 [7]

Answer:

c. an element.

Explanation:

An element -

It refers to the substance , which has same type of atoms , with exactly same number of protons , is referred to as an element .

In term of chemical species , elements are the smallest one , and can not be bifurcated down to any further small substance by the means of any chemical reaction .

Hence , from the given information of the question ,

The correct term is an element  .

3 0
3 years ago
Calculate molecules in 1dm^3 of oxygen
Archy [21]

Number of molecules in 1 dm³ Oxygen = 2.71 x 10²²

<h3>Further explanation</h3>

Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters/mol.

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

1 dm³ of oxygen = 1 L Oxygen

  • mol Oxygen :

\tt \dfrac{1}{22.4}=0.045`mol

  • molecules of Oxygen :

n=mol=0.045

No = 6.02.10²³

\tt N=n\times No\\\\N=0.045\times 6.02\times 10^{23}\\\\N=2.71\times 10^{22}

5 0
3 years ago
The modern view of an electron orbital in an atom is best described as
Mrrafil [7]

invisable

you probably dont want to put that...

5 0
4 years ago
Convert 550 Hm to mm
muminat

Answer:

55,000,000

Explanation:

550 hectometers [hm] = 55,000,000 millimeters [mm]

6 0
3 years ago
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