The gradual changes in radioactive elements enable archaeologists to use carbon-dating techniques to understand the past. Carbon-dating techniques rely heavily on what scientific discipline?
Answers
Answer:
Carbon-dating techniques rely heavily on Chemistry
Explanation:
Carbon dating or the chemistry of carbon-dating involves the comparison of naturally occurring isotopes of carbon having the same number of proton with different numbers of neutron in their nucleus involving beta (β) radiation.
Related Questions
Redox reaction definition
A liquid is placed in an evacuated, sealed flask. When will this closed system reach dynamic equilibrium?
I need help fast. i will give you 85 points
What does Hess’s law state?
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B. Decreasing the pressure
C. Increasing the pressure
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Answer;
Increasing the pressure
Explanation;
- An increase in pressure on a gas can bring the molecules close enough to each other to develop some inter-molecular attractions and form a liquid.
- The increase in pressure changes the state of matter from gas to liquid and also from liquid to solid. But increase in pressure alone cannot change the state of matter. Every gases and liquid have certain temperature above which the application of pressure would not change the state of matter.
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If you were to get a gallon of water and a gallon of Isopropyll alcohol and weigh it, the alcohol would be lighted. Another way is to pour water and the alcohol in a cup and you will see that the alcohol is above the water(floating) because its lighter and less dense. Isopropyll alcohol is used for a lot of things, including cleaning certain components of computers:D
So based on this, water is more dense
Answer:
water is denser
Explanation:
if you were to fill 2 55 gallon barrels of each product the water would weigh more because water is more dense
Answers
149g/mol is the gram-formula mass of (NH)
PO
. Therefore, the correct option is option C.
The quantity of a compound which has the exact same mass in grammes that its formula mass in an atomic mass unit is said to have the compound's gramme formula mass. Each atom of every component has a distinctive mass, and every molecular unit of a compound possesses a distinctive mass determined by the complex's formula. It is referred to as the Gramme Formula Mass because the formula-determined mass of a substance that is ionic is calculated by adding the atomic masses of each of its constituents. Gram-formula mass of (NH)
PO
= (14+4)×3+31+16×4= 149g/mol
Therefore, the correct option is option C.
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Answers
Ans: A)
HBrO and HBrO₃ are oxyacids where the acidic strength increases with the increase in the number of atoms attached to the central atom.
In both acids, oxygen is the most electronegative atom. In HBrO, the B atom is linked to only one O atom. In contrast, there are 3 electronegative O atoms surrounding the central B atom in HBrO₃ which would make the OH bond more polar and easily accessible. Thus, HBrO₃ tends to lose a proton readily than HBrO making the former more acidic.
HBrO is a weaker acid than HBrO3 because the H-O bond in HBrO is less polar than the H-O bond in HBrO3. In a series of oxyacids with similar formulas, the higher the electronegativity of the central atom, the stronger is the attraction of the central atom for the electrons of the oxygen(s), making the acid stronger.
The acid strength of HBrO is weaker than HBrO3 because the H-O bond in HBrO is less polar than the H-O bond in HBrO3 (Option A). In a series of oxyacids with similar formulas, the higher the electronegativity of the central atom, the stronger is the attraction of the central atom for the electrons of the oxygen(s). This stronger attraction of oxygen for the electrons in the O-H bond makes the hydrogen more easily released, resulting in a stronger acid (Option E). Therefore, HBrO3 is a stronger acid than HBrO.
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B) carbon
C) flourine
D) neon
and can you give me a explanation with the answer you chose
Answers
Elements undergo chemical reactions because they are not stable and they want to become stable, that is they want to attain octet form. To attain octet form, an atom of element must have eight electrons in its outermost shell. Thus, elements undergo various types of chemical bonding in order to have 8 electrons in their outermost shells.
Neon has atomic number of 10 and its electronic configuration is 2,8. This means that, neon already has 8 electrons in its outermost shell and so does not need to form any chemical bond with any other element again, it is already stable. This is why, neon is the least likely to undergo chemical reaction and this is also the reason whey the element is chemically inert.
The other elements given in the option do not have 8 electrons in their outermost shell, so they will be quite willing to undergo chemical reactions in order to become stable.