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
What is the salt that is produced when calcium hydroxide (Ca(OH)2) reacts with sulfuric acid (H2SO4)? CaSH2Ca H2O CaSO4
Wittaler [7]
H2SO4+CA[OH]2=CASO4+2H2O
3 0
3 years ago
Read 2 more answers
Which of the following would not cause an increase in the pressure of a gaseous system in a container? A The container is made l
ludmilkaskok [199]

Answer:

The container is made larger

Explanation:

5 0
2 years ago
Read 2 more answers
I am a gas. I am in the noble gas family and row 1. I have only 2 valence electrons I glow red-orange when in an electric field.
belka [17]
The element is Helium

Goodluck!
7 0
2 years ago
Read 2 more answers
Which describes the composition of carbohydrates?
UkoKoshka [18]

Answer: Carbohydrates (carbo- = “carbon”; hydrate = “water”) contain the elements carbon, hydrogen, and oxygen, and only those elements with a few exceptions. The ratio of carbon to hydrogen to oxygen in carbohydrate molecules is 1:2:1.

HOPE THIS HELPS

CAN U GIVE ME BRAINLIEST

3 0
2 years ago
Carbon-13 is an isotope. It has 6 protons and _____. 13 neutrons 7 neutrons 7 electrons 13 electrons
vovangra [49]

Answer:

7 neutrons

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which value indicate the strongest base?<br> 1. pH of 8<br> 2. pH of 5<br> 3. pH of 12
    7·1 answer
  • How many liters of ammonia (NH3), at 3.2 atm and 23C, must be used to produce of 2.65 grams of calcium hydride (CaH2). 6 Ca(s)
    8·1 answer
  • What is the heat solution
    10·1 answer
  • NEED NOW!
    8·2 answers
  • A volcano ejects a glowing chunk of lava straight up.
    12·1 answer
  • A West Virginia coal is burned at a rate of 8.02 kg/s. The coal has a sulfur content of 4.40 % and the bottom ash contains 2.80
    8·1 answer
  • The volume of a helium balloon is 2.6 L. What is this volume in cmL 1dm3)26. cm2.6 x 103 cm30.26 cm2.6 x 102 cm32.6 x 104 cm
    13·1 answer
  • What are nucleotides, genes and genomes?
    5·1 answer
  • For pea plants, T represents a dominant allele for tall pea plants and t is the recessive allele for short pea plants. If two pl
    5·2 answers
  • 6. Geologists in Egypt and Ethiopia are comparing rock samples from rocks
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!