1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
anastassius [24]
3 years ago
9

What makes isotopes unstable?

Chemistry
2 answers:
Dennis_Churaev [7]3 years ago
8 0

Answer:

Explanation:

Many elements have one or more isotopes that are radioactive these are called radioisotopes their their nuclei are unstable so they break now or decay and emit radiation

german3 years ago
4 0
Jsnshsjanabjanabahsjsbsbshshs
You might be interested in
Great amounts of atomic energy are released when a _______reaction occurs.
Mariulka [41]

Great amounts of atomic energy are released when a _______reaction occurs.

Great amounts of atomic energy are released when a chemical reaction occurs. The process can be an exothermic reaction or endothermic reaction depending on the substances involved in the reaction.

8 0
3 years ago
Which amount of a compound dissolved in 100g of water at the stated temperature represents a solution that is saturated
Assoli18 [71]
40 g KNO, at 25°C

Brainlist?
5 0
3 years ago
Which type of energy in the bungee cord prevents the bungee jumper from hitting the ground
Effectus [21]
Elastic potential energy
7 0
3 years ago
As temperature increases, the amount of solute that a solvent can dissolve increases. True False
ra1l [238]

<span>As temperature increases, the amount of solute that a solvent can dissolve increases.</span>



<span>Answer: False
</span>

6 0
3 years ago
Does adding 1 mol of NaCl to 1 kg of water lower the vapor pressure of water to the same extent, a lesser extent, or a greater e
igor_vitrenko [27]

Answer:

Adding 1 mol of NaCl to 1 kg of water lower the vapor pressure of water <em><u>to the same extent</u></em>  by adding 1 mol of C_06H_{12}O_6 to 1 kg of water.

Explanation:

1) Moles of NaCl ,n_1=1 mol

Mass of water = m= 1 kg = 1000 g

Moles of water = n_2=\frac{1000 g}{18 g/mol}=55.55 mol

Vapor pressure of the solution = p

Vapor pressure of the pure solvent that is water = p_o=17.5 Torr

Mole fraction of solute(NaCl)= \chi_1=\frac{n_1}{n_1+n_2}

\frac{p_o-p}{p_o}=\frac{n_1}{n_1+n_2}

\frac{17.5 Torr-p}{17.5 Torr}=\frac{1 mol}{1 mol+55.55 mol}

p=17.19 Torr

The vapor pressure for the NaCl solution at 17.19 Torr.

2) Moles of sucrose ,n_1=1mol

Mass of water = m  = 1 kg = 1000 g

Moles of water = n_2=\frac{1000 g}{18 g/mol}=55.55 mol

Vapor pressure of the solution = p'

Vapor pressure of the pure solvent that is water = p_o=17.5 Torr

Mole fraction of solute ( glucose)= \chi_1=\frac{n_1}{n_1+n_2}

\frac{p_o-p}{p_o}=\frac{n_1}{n_1+n_2}

\frac{17.5 Torr-p}{17.5 Torr}=\frac{1 mol}{1 mol+55.55 mol}

p'=17.19 Torr

The vapor pressure for the glucose solution at 17.19 Torr.

p = p' = 17.19 Torr

Adding 1 mol of NaCl to 1 kg of water lower the vapor pressure of water to the same extent  by adding 1 mol of C_06H_{12}O_6 to 1 kg of water.

3 0
3 years ago
Other questions:
  • Which pair of elements would form an ionic bond?
    9·2 answers
  • (3 points) Which physical properties are characteristics of metals? Choose all that apply.
    7·1 answer
  • You have a big block of ice you chip off a small chunk which has more thermal energy?
    10·2 answers
  • How many miles are there if you have 70.5g of Nacl
    7·1 answer
  • Which substance has a molar mass of 33.99 g/mol?
    14·1 answer
  • Soil is best described as a pure substance or a mixture or a compound
    7·1 answer
  • How does the alcohol enter the body? Describe the process. Where does most of the absorption take place?
    10·1 answer
  • 1. How many moles of potassium are present in 4.23 x 1025 potassium atoms?
    14·1 answer
  • What is chemistry??????​
    11·1 answer
  • How many oxygen atoms are in 4.00g of quartz?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!