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
lorasvet [3.4K]
3 years ago
13

Suppose you have an atom composed of 19 protons, 20 neutrons and 19 electrons. what is the mass of this atom?

Chemistry
1 answer:
bazaltina [42]3 years ago
7 0
Mass = PROTONS + neutrons. So, 19 +20 = 39.
(Don't confuse yourself between electrons and protons when they are equal because it could be an ion)
You might be interested in
10 Points! Help please!
icang [17]
Your answer to that question is Fand N
8 0
3 years ago
Which element from this portion of the table chemically reacts in a way similar to the way the element chlorine (Cl) reacts? (1)
mina [271]
D. I or Iodine

This is because they are both in the same periodic family (the halogens) and thus the number of valence electrons are the same
4 0
3 years ago
Read 2 more answers
A gas occupies a volume of 2.4 L at 14.1 kPa. What volume will the gas occupy at 84.6 kPa?
Naddik [55]

Answer:

  • <u>0.40 L</u>

Explanation:

Boyle's law for gases states that, at constant temperature, the volume and pressure of a fixed amount of gas are inversely related.

Mathematically, that is:

  • PV = constant

  • P₁V₁ = P₂V₂

Here, you have:

  • V₁ = 2.4 L
  • P₁ = 14.1 Kpa
  • P₂ = 84.6 KPa
  • V₂ = ?

Then, you can solve for V₂:

  • V₂ = P₁V₁ / P₂

Substitute and compute:

  • V₂ = 14.1 KPa × 2.4L / 84.6 KPa = 0.40 L ← answer
3 0
3 years ago
Do you think a single gene controls height in humans, as it does in peas? Explain your answer.
lakkis [162]
No, because humans are much more complex than peas.
6 0
3 years ago
Read 2 more answers
All organic molecules have what element in common
joja [24]

Every organic molecules/compound contains carbon (c).

Some other very abundant are hydrogen, nitrogen, oxygen, phosphorus, and sulfur.

I learned this with the acronym CHNOPS.

C - Carbon

H - Hydrogen

N - Nitrogen

O - Oxygen

P - Phosphorus

S - Sulfur

Hope this helps!


6 0
3 years ago
Read 2 more answers
Other questions:
  • Which ions in flint water caused the protective layer inside the pipes to break down?
    8·1 answer
  • What are ceres,ida, and gaspra
    14·2 answers
  • The electrical conductivity of an aqueous solution depends on the concentration of which particle in the solution
    15·1 answer
  • In order to observe a property of a substance, the substance must interact with another substance, such as when gasoline burns o
    9·2 answers
  • Energy and Temperature Activity Worksheet
    7·2 answers
  • Converting from kilograms meter per second to gram centimetres per minute​
    15·1 answer
  • What kind of elements are on the left side of the zig-zag line on the periodic table? ​
    12·1 answer
  • HELP ASAP! 20 POINTS
    8·1 answer
  • Will give brainly
    13·1 answer
  • What is the number of atoms of oxygen in 0.1 mol of CuSO4.5H2O? &amp; explain​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!