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earnstyle [38]
4 years ago
10

What is the relationship between isotopes, mass number, neutrons?

Chemistry
1 answer:
miv72 [106K]4 years ago
8 0

Answer:

For isotopes, the difference between the mass number and number of neutrons is constant.

Explanation:

Isotopes are atoms with the same atomic number but different mass numbers.

Number of neutrons in an atom can be obtained by subtracting the atomic number from the mass number.

So in other words , isotopes are atoms for which the difference between the mass number and number of neutrons is constant.

For example, Hydrogen,Deuterium and Tritium are isotopes of Hydrogen in which the difference between mass number and number of neutrons is 1.

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Please describe the relationship between these pairs of compound as: isomers, identical, or unrelated
RUDIKE [14]
A.) CIS/Trans isomers
b.) constitutional isomers
c.) identical
d.) constitutional isomers
e.) identical

4 0
4 years ago
What is the molarity of a solution that contains 0.082 mol KI in a 2.03 L solution?
astraxan [27]

Answer:

molarity of the KI solution = 0.04 mol/L

Explanation:

Molarity (M) is the concentration of a solution expressed as the number of moles of solute per liter of solution.  

The law that we can applied to calculate the M is:  

M = n / V

n - number of moles

V- volume of the solution (liters)

Then insert in the equation the values from the question;  

M = 0.082 mol  /  2.03 L = 0.04 mol/L

4 0
3 years ago
1. How do organisms maintain homeostasis?
Alex_Xolod [135]

Answer:

Maintenance of homeostasis usually involves negative feedback loops. These loops act to oppose the stimulus, or cue, that triggers them.

6 0
3 years ago
Which of the following contains The greatest number of representative particles: 1 mole of water molecules, 1 mole of copper ato
Crazy boy [7]

Answer:

1 mole of sodium chloride ions

Explanation:

i hope this answer helps u

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7 0
3 years ago
By what quantity must the heat capacity be divided to obtain the specific heat of that material
masha68 [24]
<span>Heat capacity of an object, is the amount of heat energy or thermal energy (unit: Joule) needed to raise the temperature of the object by 1 degree celsius. Unit of heat capacity is J/°C 

Larger object will surely need larger amount of thermal energy to raise its temperature. If you compare 1 litre of water with 0.5 litre of water, the 1L water will have two times the heat capacity. 

It will be more useful to compare specific heat capacity, because then it is the amount of heat energy or thermal energy (unit: Joule) needed to raise the temperature of 1 unit mass of the object by 1 degree celsius. You can then compare between 1 unit mass of water and 1 unit mass of iron. 
Water has higher specific heat capacity than iron, meaning that you need more energy to heat up 1kg of water, then to heat up 1kg of iron. 

The unit will then be J/(kg °C) or J/(g °C).
</span>
6 0
3 years ago
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