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
Korvikt [17]
3 years ago
15

using the equation above for a nuclear reaction, supply the following answer: there are 96 or 242 or 146 curium neutrons. I need

help plzz​

Chemistry
1 answer:
Sladkaya [172]3 years ago
8 0

Explanation:

Number of Cm neutrons = 242 - 96 = 146

You might be interested in
What is the boiling point of a solution of 76 g of water dissolved in 500 mL of acetic acid, CH3COOH?
tatuchka [14]

Answer:

127.3° C, (This is not a choice)

Explanation:

This is about the colligative property of boiling point.

ΔT = Kb . m . i

Where:

ΔT = T° boling of solution - T° boiling of pure solvent

Kb = Boiling constant

m = molal (mol/kg)

i = Van't Hoff factor (number of particles dissolved in solution)

Water is not a ionic compound, but we assume that i = 2

H₂O →  H⁺  +  OH⁻

T° boling of solution - 118.1°C =  0.52°C . m . 2

Mass of solvent =  Solvent volume / Solvent density

Mass of solvent = 500 mL / 1.049g/mL → 476.6 g

Mol of water are mass / molar mass

76 g / 18g/m = 4.22 moles

These moles are in 476.6 g

Mol / kg = molal → 4.22 m / 0.4766 kg = 8.85 m

T° boling of solution =  0.52°C . 8.85 m . 2 + 118.1°C =  127.3°C

6 0
3 years ago
Read 2 more answers
The reaction of solid aluminum with hydrochloric acid is used to make hydrogen gas in a laboratory experiment. The reaction is 2
Gemiola [76]

Answer:

0.003088 moles of hydrogen gas were formed .

Explanation:

Pressure at which hydrogen  gas is collected at 20°C = 768.0 Torr

Vapor pressure of water at 20°C = 17.5 Torr

Total pressure = Vapor pressure of water + Partial pressure of hydrogen gas

Partial pressure of hydrogen gas:

Total pressure - Vapor pressure of water

= 768.0 Torr - 17.5 Torr = 750.5 Torr = 0.987 atm

(1 Torr = 0.001315 atm)

Pressure of hydrogen gas =P = 0.986 atm

Temperature at which gas was collected ,T= 20°C = 293.15 K

Volume of the gas ,V= 75.3 mL = 0.0753 L

Moles of hydrogen gas = n

PV=nRT (An ideal gas equation)

n=\frac{PV}{RT}=\frac{0.987 atm\times 0.0753 L}{0.0821 atm L/mol K\times 293.15 K}=0.003088 mol

0.003088 moles of hydrogen gas were formed .

7 0
4 years ago
If the prefix calli- means "beautiful", what is the exact meaning of the word calligraphy
anastassius [24]

Answer:

B

Explanation:

If someone was to call your picture calligraphy it mean beautiful graphics so theres your answer

3 0
4 years ago
Read 2 more answers
The philosopher’s stone weighs 43.2 g is placed in a graduated cylinder containing 63 ml of water. after the stone is added to t
denis23 [38]
M=43.2 g
v₁=63 ml
v₂=74 ml

p=m/v=m/(v₂-v₁)

p=43.2/(74-63)=3.927 g/ml
5 0
4 years ago
Read 2 more answers
Why does the mixture of cake rise while baking?
allochka39001 [22]
Yeast. Yeast causes the mixture with flour to become light and airy thus increasing size as temperature is applied.
4 0
3 years ago
Other questions:
  • plants use carbohydrates to build things such as cellulose. How do plants acquire these building blocks to build Mass.
    11·1 answer
  • Consider the following errors that could be made when running TLC. Indicate what should be done to correct the error. a. A two-c
    9·1 answer
  • Only need help with Bottom part
    5·1 answer
  • In YOUR OPINION, should the United States try to reduce the amount of nonrenewable resources we use to produce electricity? Why?
    11·2 answers
  • Which atom in each pair has the larger atomic radius?
    12·1 answer
  • Will Rb and I form an iconic or covalent bond?
    11·1 answer
  • Where are the volcano located
    9·1 answer
  • Which of the following will show “Tyndall effect”?
    12·1 answer
  • How many moles are in 20 grams of Ca (Calcium)? *
    10·1 answer
  • What is the approximate time of death if the body temperature was 15.6°C?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!