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
Travka [436]
3 years ago
13

ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST

Chemistry
2 answers:
Katena32 [7]3 years ago
7 0
Number of protons and neutrons
xz_007 [3.2K]3 years ago
5 0
Answer: the mass number of an element is equal to the number of protons plus the number of neutrons.
You might be interested in
A sample of gas consists of 4.0 moles, and exists at stp. What is the volume of the gas?
faust18 [17]

Answer:

The volume of the gas is 89.60

Explanation:

When converting from moles to volume, you would multiply by 22.4 because 1 mole equals 22.4 liters at STP.

So...

4.0 moles * 22.4 liters =

89.60 liters

6 0
3 years ago
Read 2 more answers
What element was named for the scientist who discovered the nucleus of the atom using gold foil
Artist 52 [7]
<span>rutherfordium element # 104</span>
4 0
3 years ago
Explain why mixing of red paint with white paint does not constitute a chemical reaction even though the product has a different
MArishka [77]

Answer:

Explanation:

In a chemical change through chemical reactions, a new kind of matter forms. When a paint is mixed together, a physical change has occurred and not a chemical change. The different color one perceives is just a mere overlap between the reflected white and red color which produces another hue.

Not all color changes infers a chemical reaction. A paint is a complex mixture on its own.

5 0
3 years ago
Gases and particles which are put into the air or emitted by various sources are called __________. photochemical smog emissions
Leto [7]
I would say the answer is emissions. These are the particles that are not supposed to be present in air but due to the production of different substances from humans daily activities these substances go with the air we breath. Hope this helped.
7 0
3 years ago
No explanation needed, just a quick answer please!
tresset_1 [31]

all of the above is the answer :)

8 0
4 years ago
Other questions:
  • Which is an example of plasmas in nature? solar cells plasma balls auroras clouds
    9·2 answers
  • The area of the circular base of a can of
    12·1 answer
  • What do all group 2 elements have in common? (2 points) they all gain two electrons to form a stable outer energy level. They fo
    15·2 answers
  • Brainliest if answered in the next 5m
    9·2 answers
  • Please help me with this question !!!
    14·1 answer
  • How does the energy of the atoms in a hot cup of coffee compare to the energy of the atoms in a piece of ice?
    13·1 answer
  • Which is the most likely to be reduced
    6·2 answers
  • Help pleaseeeeeeeee with this question
    15·2 answers
  • A compound has a pH of 1 in solution, where it has completely lonized. The compound is a
    6·1 answer
  • What is pseudo - order reaction​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!