CHEMISTRY HIGH SCHOOL

Are diamonds flammable?

Answers

Answer 1
Answer: A match-head is flammable, but you have to get it up to its ignition temperature first.

A diamond is flammable, but its ignition temperature is astronomical and
totally out of sight.
Answer 2
Answer: Diamonds are not flammable, but are combustible, when a diamond burns there is no ash because diamonds are pure carbon and when burned it is turned into carbon dioxide.
:D

Related Questions

Which of the following statements best describes why strong acids and strong bases are good electrolytes?. . A. Strong acids and strong bases make water less pure.. . B. Strong acids and strong bases combine to form salts.. . C. Strong acids and strong bases neutralize each other.. . D. Strong acids and strong bases completely dissociate in water.. .
if 1200 j of heat were absorbed by a 25 g block of iron, by how much would the temperature of the iron increase?
A vineyard has 145 acres of Chardonnay grapes. A particular soil supplement requires 5.50 g for every square meter of vineyard. How many kilograms of the soil supplement are required for the entire vineyard? (Recall that 1 km2 = 247 acres.) Express your answer in kilograms to three significant figures.
Help Please earth science
Baking a cake is an example of -a. forming mixtures. b. forming solutions. c. exothermic reactions. d. endothermic reactions.

isotopes are atoms that contain the same number of protons but a different number of neutrons in their nuclei. based on this information, which statement about isotopes is true? a. isotopes are atoms of the same element. b. isotopes are atoms that have the same mass number. c. isotopes are atoms of different elements that have similar chemical and physical properties. d. isotopes are atoms of different elements that belong to the same family on the periodic table.

Answers

c)Chemical properties of elements are primarily determined by the electrons but not by the neutrons. Therefore, the Isotopes of the same element have similar chemical behavior.

Why does red appear first in the visible light spectrum? A Red light has the shortest wavelength, so it is refracted the least. B Red light has the shortest wavelength, so it is refracted the most. C Red light has the longest wavelength, so it is refracted the most. D Red light has the longest wavelength, so it is refracted the least.

Answers

The red light appears first in the visible light spectrum as it exhibits the longest wavelength, and is refracted the least.

The relation between wavelength and refraction of light:

The phenomenon of bending of light as it moves from one medium to another is termed refraction. The intensity of refraction enhances with the decrease in the wavelength of light. The shorter wavelengths of light, that is, blue and violet are slowed more and at the same time experience more bending in comparison to the lights of longer wavelengths, that is, red.

The red color exhibits the longest wavelength and the slowest vibration, on the other hand, violet color exhibits the shortest wavelength and the fastest vibration of energy. The longer the wavelength, the less it is refracted and vice versa, This is the reason that red light appears first in the visible light spectrum.

Thus, the correct answer is option D.

Find out more information about the relation between wavelength and refraction here:

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Answer:

c.

Explanation:

A metal, M, forms an oxide compound with the general formula M2O. In which group on the Periodic Table could metal M be found?(1) Group 1 (3) Group 16
(2) Group 2 (4) Group 17

Answers

The oxidation state of an element is calculated by subtracting and the total sum of oxidation states of all the individual atom (excluding the one that has to be calculated) from total charge on the molecule. Option (1) is correct option.

What is oxidation state?

Oxidation state of an element is a number that is assigned to an element in a molecule that represents the number of electron gained or lost during the formation of that molecule or compound. Oxidation state is a unitless quantity.

Oxidation state of M in M₂O is:

Let oxidation state of M be X

Oxidation state of Oxygen is -2

Overall charge on the molecule is 0

so 2X+(-2)=0

X=+1

So from here we can see that oxidation state of M is +1 which is possessed only by group 1 element

Hence option (1) is correct option.

To learn more about Oxidation state, here:

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Because the compound has a formula of M2O, the number of valence electrons of M should be 1. 

Therefore, (1) Group 1 is the correct answer because elements in group 1 have 1 valence electron.

Hope this helps~

A 1.00 L volume of HCl reacted completely with 2.00 L of 1.50 M Ca(OH)2 according to the balanced chemical equation below. 2HCl + Ca(OH)2 > CaCl2 + 2H2O What was the molarity of the HCl solution?it is either 6.00 M or 0.375 M

Answers

The first step is to find the number of moles of OH⁻ that reacted with the HCl.  To do this multiply 2.00L by 1.50M to get 3 moles of Ca(OH)₂.  Then you multiply 3 by 2 (there are 2 moles of OH⁻ per every 1 mole of Ca(OH)₂) to get 6 moles of OH⁻.  That means that you needed 6 moles of HCl since 1 mole of HCl contains 1 mole of H⁺ and equal amounts H⁺ and OH⁻ reacted with each other.  To find the molarity of the HCl solution you need to divide 6mol by 1L to get 6M.  Tat means that the concentration of the acid was 6M.

I hope this helps.  Let me know if anything was unclear.

Answer:

D)- 6.00M

Explanation:

took test on edg

Which of these statements is true? A.
Some molecules may contain no atoms.


B.
Some elements found in nature exist as molecules.


C.
Some compounds include only one type of element.


D.
Some atoms are made of two or more different elements. Which of these statements is true?


A.
Some molecules may contain no atoms.


B.
Some elements found in nature exist as molecules.


C.
Some compounds include only one type of element.


D.
Some atoms are made of two or more different elements.

Answers

Pretty sure it's B. If not, then it's C.

The following reactions ar an example of what kind of reaction?ZnBr2(aq) + 2AgNO3(aq) -> Zn(NO3)2(aq) + 2AgBr(s)
a) precipitation reaction
b) acid=base reaction
c) oxidation-reduction reaction

Answers

Answer: A) precipitation reaction

Explanation: In the products of the reaction, AgBr is a solid. Since the starting reagents were both aqueous, this is indicative of a precipitation reaction.

Choice B is wrong because both the starting materials and the final products are inorganic salts, not acids and bases. Choice C is wrong because the oxidation numbers for Zn, Br, Ag, and the NO3 anion didn't change in the reaction.

Final answer:

The given reaction, ZnBr2(aq) + 2AgNO3(aq) -> Zn(NO3)2(aq) + 2AgBr(s), is an example of a precipitation reaction.

Explanation:

The given reaction, ZnBr2(aq) + 2AgNO3(aq) -> Zn(NO3)2(aq) + 2AgBr(s), involves the combination of aqueous solutions of ZnBr2 and AgNO3. The products formed are Zn(NO3)2, which remains in the aqueous state, and AgBr, which precipitates as a solid.

This reaction is an example of a precipitation reaction. In a precipitation reaction, two aqueous solutions react to form an insoluble solid called a precipitate. In this case, the silver ions (Ag+) from AgNO3 react with the bromide ions (Br-) from ZnBr2 to form AgBr, which is insoluble in water and appears as a solid.

Learn more about types of chemical reactions here:

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What is a crystal?a. a type of rock b. the smallest unit of an element c. an artificial, decorative substance d. a solid made of atoms arranged in an orderly fashion
A neutron is a particle that carries a negative charge.
Please help fast. I will give brainliest!!!