List four properties of a candle

Answers

Answer 1
Answer:   1. Physical properties 
. Its soft 
. Its moldable 
. Its white/translucent without color added 
. Its insoluble in water 
. its soluble in benzene and ether 
. it melts around 120 degrees farenheit 

2. Chemical properties 
. It is a hydrocarbon with around 25 carbon atoms 
. it reacts with oxygen to form water vapor and CO2 
. its nonpolar (not sure if thats physical or chemical)


Related Questions

In today's experiment, you will be recrystallizing a "dirty" sample of benzoin. Choose the statement that best explains how you will determine your sample?a. The yield of my product is highb. The appearance of the product matches the literature descriptionc. The melting point range should be less than 3 Cd. The melting point range matches the literature values.
Based on the electron configuration,how many valence electrons are in technetium, Tc? 1s²2s²2p63s²3p64s23d¹04p65s24d5 A2 C. 4 B. 5 D. 9
Identify whether the following is an example of qualitative or quantitative data. the taste of an apple:
If a neutral atom has a mass of 12 amu and an atomic number of 5, determine the number of protons, neutrons, and electrons in the atom.
A student is using a copper strip and a strong chlorine solution in her experiment. Which of these is a chemical property of one of her materials?

Which statements about hydrogen bonding in water are true?a. The hydrogen atoms of a water molecule have a partial positive charge.
b. The oxygen atom of a water molecule is more electronegative than a hydrogen atom.
c. The hydrogen atoms of a water molecule have a partial negative charge.
d. The hydrogen atom of one water molecule is attracted to the oxygen atom of a different water molecule.
e. The hydrogen atom of a water molecule is attracted to the oxygen atom of the same water molecule.
f. The oxygen atom of a water molecule has a partial positive charge.
g The oxygen atom of a water molecule has a partial negative charge.

Answers

Answer:

The answer to your question is below

Explanation:

a. The hydrogen atoms of a water molecule have a partial positive charge.  True.

b. The oxygen atom of a water molecule is more electronegative than a hydrogen atom.  True

c. The hydrogen atoms of a water molecule have a partial negative charge.  False

d. The hydrogen atom of one water molecule is attracted to the oxygen atom of a different water molecule.  True

e. The hydrogen atom of a water molecule is attracted to the oxygen atom of the same water molecule.  False,

f. The oxygen atom of a water molecule has a partial positive charge.  True

g The oxygen atom of a water molecule has a partial negative charge. True

an atom has 2 electrons in the first energy level, 8 electrons in the second energy level, and 1 electron in the third energy level. What is the number of core electrons

Answers

Considering the definition of electronic configuration and valence shell, the number of core electrons is 1, because the valance shell is the third energy level.

The Electronic Configuration of the elements is the arrangement of all electrons of an element in energy levels and sub-levels (orbitals).  

There are 7 energy levels, numbered from 1 to 7, and in which electrons are distributed, logically in order according to their energy level. Electrons with less energy will be spinning at level 1.

Each level is divided into sub-levels. These sub-levels into which each level is divided can be up to 4. These 4 sub-levels are called: s, p, d, f.

Aufbau's principle is a principle of atomic physics, which explains how electrons are accommodated in their orbits around the nucleus of the atom.

This principle states that the filling of these orbitals occurs in increasing order of energy, that is, from the orbitals of lower energy to those of higher energy.

The simplest of the sub-levels is 1s. If you fill the 1s you can start filling the 2s. After the 2s sub-level is satisfied, the 2p can begin to fill and so on.  

The valence shell is the one where the outermost electrons are found, those electrons that are in the last level. Because it is the outermost shell, it is also the farthest from the atomic nucleus.

The valence shell is one whose electrons are responsible for the chemical properties of an element.

In this case, an atom has 2 electrons in the first energy level, 8 electrons in the second energy level, and 1 electron in the third energy level. So, the number of core electrons is 1, because the valance shell is the third energy level.

Learn more:

Final answer:

The atom described has 10 core electrons. These are located in the first and second energy levels, which are filled from lowest to highest. The electron in the third energy level is a valence electron.

Explanation:

The question you asked involves understanding the structure of atomic energy levels (or shells). In an atom, electrons fill in the energy levels from lowest to highest. The core electrons are those in the inner energy levels.

In your case, the atom has 2 electrons in the first energy level and 8 in the second energy level, making a total of 10 core electrons. The one electron in the third energy level would be considered a valence electron, not a core electron, because it's located in the outermost energy level of the atom.

Learn more about Core Electrons here:

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Why could a recycling or recovery machine using a hermetic compressor overheat while in deep vacuum?

Answers

Answer:

Explanation:fsthy add

What are chemical reactions?

Answers

2 elements or more sharing/gaining/losing to each other for a result of full outer shells of electrons of each element to become noble gases.
chemical reactions are reactions that make chemical changes to a type of something. sometimes its physically seen as well.
yw

The radioisotope radon-222 has half-life of 3.8 days. how much of a 73.9-g sample of radon-222 would be left after approximately 23 days?

Answers

This can be solved by the equation: 

A = Aoe^(-ln2/t)T
where Ao is the initial amount of the substance ( 73.9-g sample of radon-222 ), t is the half-life time (3.8 days) and T is the time elapsed. Plugging in the values in the equation, the substance left is 1.11g. 

Can someone help me find the theoretical value of methane? It is chemistry

Answers


Methane is lighter than air, having a specific gravity of 0.554. It is only slightly soluble in water. It burns readily in air, forming carbon dioxideand water vapour; the flame is pale, slightly luminous, and very hot.The boiling point of methane is −162 °C (−259.6 °F) and the meltingpoint is −182.5 °C (−296.5 °F). Methane in general is very stable, butmixtures of methane and air, with the methane content between 5 and 14percent by volume, are explosive. Explosions of such mixtures have beenfrequent in coal mines and collieries and have been the cause of manymine disasters.