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
netineya [11]
3 years ago
6

Element A has 15 protons. Determine the number of neutrons in its isotope with mass number 33.

Chemistry
1 answer:
mario62 [17]3 years ago
7 0
33 - 15 = 18
This element is P-33 
You might be interested in
If a proton and an electron are released when they are 5.50×10−10 mm apart (typical atomic distances), find the initial accelera
Vlada [557]

Answer: The initial acceleration of the proton = (4.56 × 10^23) m/s2

The initial acceleration of the electron = (8.36 × 10^26) m/s2

Explanation: The force of attraction between the proton and electron can be computed using the statements of Coulomb's law which state that the force of attraction between two charged particles is directly proportional to the product of the two charges and inversely proportional to the square of their distances apart.

F = (Kq1q2)/(r^2) where K = (9 × (10^9) Nm(C^-2))

But q1 is the charge on a proton = (1.6 × (10^-19)) C

q2 is charge on an electron = -(1.6 × (10^-19)) C

r = (5.50 × (10^-10))mm = (5.50 × (10^-13))m

Computing all that, F = 0.0007616529 N = (7.62 × 10^-4) N

But the force of attraction is converted to that required for motion when they're released.

F = ma.

For proton, m = (1.67 × 10^-27) kg

a = F/m = 0.000762/(1.67 × 10^-27) = (4.56 × 10^23) m/s2

For electron, m = (9.11 × 10^-31) kg

a = F/m = 0.000762/(9.11 × 10^-31) = (8.36 × 10^26) m/s2

QED!

7 0
3 years ago
The crater is the bowl-shaped area around a volcano’s central vent. t/f
Lyrx [107]
If I'm correct, the crater is actually a circular-shaped area around the volcano's central vent. My answer is false
6 0
2 years ago
What is the percent by mass of potassium in K3Fe(CN)6?
yawa3891 [41]
The percent by mass of potassium in K3Fe(CN)6 is 35.62%.
3 0
3 years ago
Read 2 more answers
Find the mass of 250.0 mL of benzene. The density of benzene is 0.90 g/mL.
guapka [62]

Answer:

<h2>225 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 0.9 × 250

We have the final answer as

<h3>225 g</h3>

Hope this helps you

7 0
2 years ago
Which of the following is NOT a good technique for managing used oil? A) Have specific, labeled catch pans available for technic
slava [35]

The answer is: B) Spills in your shop and any releases on pavement or outside should be poured down a drain.

Pouring used oil down a drain can cause damege to environment.

Oil is nonpolar substance and does not dissolve in the water (polar molecule), used oil remain existent in the drain and sewer or in the environment.

Small spills create a cumulative effect with  significant impact on the  environment.

Untended spills inside  a shop can spread to an inside  drain connected to the storm  sewer system and cause floods.

8 0
3 years ago
Other questions:
  • The variables _______ and ________ affect the gravitational force between objects.
    11·2 answers
  • During a lab investigation Robert was given 5 samples of different metals. Each sample was the same color and had the same volum
    6·1 answer
  • Why do heated molecules rise? a Because they are less dense than the molecules around them b Because they are moving slower than
    5·1 answer
  • Which statement best describes the properties of covalent compounds
    8·1 answer
  • How many grams of CO₂ will be produced from 7.00 g of C₃H₈ and 98.0 g of O₂?
    9·1 answer
  • What are the two major types of cells that occur in nature?
    12·2 answers
  • suppose you find a website that describes the rusting of a nail as a change to only the physical properties of iron. Would that
    15·1 answer
  • Part E
    12·1 answer
  • During a chemical reaction ____ is never created or destroyed
    15·1 answer
  • A sample of a compound is found to contain 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen. What is the empirical formula of this
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!