answer.
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
Dahasolnce [82]
2 years ago
9

Determine the number of neutrons in an atom of Rg-272.

Chemistry
1 answer:
IRISSAK [1]2 years ago
6 0
In order to find the number of neutrons in the atom,

you need to calculate the difference between the top and bottom numbers

which means 272 - 111 = 161

Hope this helps
You might be interested in
You have a racemic mixture of d-2-butanol and l-2-butanol. the d isomer rotates polarized light by +13.5∘. what is the rotation
Bumek [7]
L- isomer is considered as the Enantiomer of d- isomer and since the d-isomer optical rotation is + 13.5° so the optical rotation of l-isomer will be the same degree but with opposite sign which equal to -13.5° 

So the degree of rotation of racemic mixture will equal 0° 


- This is because racemic mixture contains equal amount of both enantiomers
8 0
2 years ago
A student wants to form 2‑hexanol using acidic hydration. He finds four alkenes in the inventory cabinet that could be possible
julia-pushkina [17]

Answer:

Look on the picture.

Explanation:

He could find only 2 isomers of n-hexane alkenes for this reaction. Other two could be marked from other direction.

8 0
2 years ago
The potential energy of a catapult was completely converted into kinetic energy by releasing a small stone with a mass of 20 gra
vladimir1956 [14]

1,000 grams = 1 kilogram

20 grams = 0.02 kilogram


Kinetic energy = (1/2) (mass) x (speed)²


                          (1/2) (0.02) x (15)² =


                                (0.01)  x  (225)  =  2.25 joules



3 0
2 years ago
Read 2 more answers
You are asked to go into the lab and prepare an acetic acid - sodium acetate buffer solution with a ph of 4.00  0.02. what mola
Oxana [17]
Hello!

To solve this problem we are going to use the Henderson-Hasselbach equation and clear for the molar ratio. Keep in mind that we need the value for Acetic Acid's pKa, which can be found in tables and is 4,76:

 pH=pKa + log ( \frac{[CH_3COONa]}{[CH_3COOH]} )

\frac{[CH_3COOH]}{[CH_3COONa}= 10^{(pH-pKa)^{-1}}=10^{(4-4,76)^{-1}}=5,75

So, the mole ratio of CH₃COOH to CH₃COONa is 5,75

Have a nice day!

5 0
2 years ago
A substance occupies one half of an open container. The atoms of the substance are closely packed but are still able to slide pa
SCORPION-xisa [38]

For a substance to occupy one half of an open container with the atoms being able to slide past each other, the most likely phase of the substance would be liquid.

Atoms of gases would not occupy just one-half of an open container because atoms of gases will diffuse and spread out from an open container.

Atoms of solids are fixed about a particular position and will most likely not be able to slide past each other in an open container.

Only the atoms of liquid take the shapes of their containers and do not have the capacity to diffuse out ordinarily. They are also able to flow despite the closeness of the atoms and would occasionally slide past each other.

More on states of matter can be found here: brainly.com/question/9402776

8 0
1 year ago
Other questions:
  • How many molecules are in 0.25 grams of dinitrogen pentoxide?
    6·2 answers
  • Which of the following is a reasonable ground-state electron configuration?
    14·2 answers
  • Meanings of Ka and pKa (a) Does a strong acid have a greater or lesser tendency to lose its proton than a weak acid? (b) Does th
    13·1 answer
  • Cobalt-60 is produced by a three reaction process involving neutron capture, beta-emission, and neutron capture. The initial rea
    6·1 answer
  • A flask of fixed volume contains 1.0 mole of gaseous carbon dioxide and 88 g of solid carbon dioxide. The original pressure and
    14·1 answer
  • For the following equilibrium system, which of the following changes will form more CaCO3? CO2(g) + Ca(OH)2(s) ⇌ CaCO3(s) + H2O(
    14·1 answer
  • PLS HELP ASAP, WILL GIVE 100 POINTS.
    9·1 answer
  • When 189.6 g of ethylene (C2H4) burns in oxygen to give carbon dioxide and water, how many grams of CO2 are formed? C2H4(g) + O2
    7·1 answer
  • One million argon atoms is how many mol of argon atoms? (2 significant figures)
    5·1 answer
  • When 13.6 g of calcium chloride, CaCl2, was dissolved in 100.0 mL of water in a coffee cup calorimeter, the temperature rose fro
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!