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
aleksandr82 [10.1K]
3 years ago
5

Choose the isotope that would be most stable. carbon-14 barium-56 lead-82 radon-85

Chemistry
1 answer:
shutvik [7]3 years ago
4 0
The most stable isotope would be lead-82.
You might be interested in
Please help me I will give you extra points and the brain thing please actually do it.
Shkiper50 [21]
Inertia is the retaliation of an object to change in its velocity
4 0
3 years ago
An atom has the following electron configuration.
Wewaii [24]

Answer: 5

Explanation: add up all the electrons and it will amount to 23. Arranging by the old model for electronic configuration, we have : 2, 8, 8, 5

The last number being 5 represent its valence electron

3 0
3 years ago
Read 2 more answers
What components are needed in a expeirment
AnnyKZ [126]
Independent and dependent variables and constants
7 0
3 years ago
A geochemist in the field takes a 46.0 mL sample of water from a rock pool lined with crystals of a certain mineral compound X.
inysia [295]

Answer:

The solubility of the mineral compound X in the water sample is 0.0189 g/mL.

Explanation:

Step 1: Given data

The volume of water sample = 46.0 mL.

The weight of the mineral compound X after evaporation, drying, and washing = 0.87 g.

Step 2: Calculate the solubility of X in water

46.00 mL of water sample contains 0.87 g of the mineral compound X.

To calulate how many grams of the mineral compound  1.0 mL  of water sample contains:

0.87 g/46.0 mL = 0.0189 g.

This means the solubility of the mineral compound X in the water sample is 0.0189 g/mL.

3 0
3 years ago
This is the balances equations. C3H8 + 5O2 → 3CO2 + 4H2O How many moles of oxygen are required to produce 37.15 g CO2
AleksandrR [38]
Molar mass O2 = 31.99 g/mol

Molar mass CO2 = 44.01 g/mol

Moles ratio:

<span>C3H8 + 5 O2 = 3 CO2 + 4 H2O 
</span>
5 x 44.01 g O2 ---------------- 3 x 44.01 g CO2
( mass of O2) ------------------ 37.15 g CO2

mass of O2 = 37.15 x 5 x 44.01/ 3 x 44.01

mass of O2 = 8174.8575 / 132.03

mass of O2 = 61.916 g 

Therefore:

1 mole O2 ----------------- 31.99 g
moles O2 -------------------- 61.916

moles O2 = 61.916 x 1 / 31.99

moles = 61.916 / 31.99 => 1.935 moles of O2
4 0
3 years ago
Other questions:
  • How important is reproduction in containing the cycle of life on earth
    7·1 answer
  • What is the differentences between atomic number and atomic mass?
    5·1 answer
  • Which of the following statements is true?
    13·2 answers
  • While driving your rental car on your vacation in Europe, you find that you are getting 8.8 km/L of gasoline. What does this val
    14·1 answer
  • Which statement about liquid state of matter is true?
    7·1 answer
  • What two colors make pink?
    13·2 answers
  • Which of these is part of the geosphere?
    6·2 answers
  • An actual measurement of a sample is 3.5 m. The measured
    15·2 answers
  • Why might having mud in an ecosystem be important?
    12·1 answer
  • A wave is moving towards shore with a velocity of 5.0 MS if it’s frequency is 2.5 Herz what is the wave length
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!