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
olga_2 [115]
4 years ago
12

An atom with 19 protons and 18 neutrons is a(n)

Chemistry
1 answer:
Eddi Din [679]4 years ago
8 0

Answer:

A

Explanation:

The number of protons indicates the element so we know it's potassium. To get the number of neutrons you subtract the number of protons (19) from the mass number which for potassium is 39.

39-19=20 neutrons

Because you have 18 neutrons then yours would be an isotope.

You might be interested in
What are three properties of inertia?
Snezhnost [94]
1. rigid body assumption
2. CM motion to represent linear motion
3. dynamics discussions
6 0
3 years ago
Which substance gets broken down in a homogeneous mixture? O colloid solution solute Osolvent​
astra-53 [7]

Answer:

Solute

Explanation:

i just did the quiz

3 0
4 years ago
List 6 uses of acids
devlian [24]

Answer: 1. Vinegar, used in the kitchen, is a liquid containing 3-6% acetic acid. It is used in pickles and in many food preparations.

2. Lemon and orange juice contains citric acid. Citric acid is used in the preparation of effervescent salts and as a food preservative.

3. Acids have been put to many uses in industry. Nitric acid and sulphuric acid are used in the manufacture of fertilizers, dyes, paints, drugs and explosives.

4. Sulphuric acid is used in batteries, which are used in cars, etc. Tannic acid is used in the manufacture of ink and leather.

5. Hydrochloric acid is used to make aqua regia, which is used to dissolve noble metals such as gold and platinum.

6. Sulphuric acid is used in manufacturing fertilizers such as super phosphate, ammonium sulpahte etc.

8 0
3 years ago
Define law of conservation of mass
horrorfan [7]

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.The law of conservation of mass is useful for a number of calculations and can be used to solve for unknown masses, such the amount of gas consumed or produced during a reaction. Hope this helps!


7 0
4 years ago
What is the charge on the hydronium ion?
puteri [66]
A hydronium ion has a charge of one plus
3 0
3 years ago
Read 2 more answers
Other questions:
  • Based on the information provided in the graph, we can see that as the independent variable increases,
    14·2 answers
  • What happens to He avarage kinetic energy of the bromine particles
    10·2 answers
  • Suppose you did not have any indicator available, how else would you be able to identify the end point of the titration?
    13·1 answer
  • Which functional group is found in an amine?
    9·2 answers
  • Which of the following are heterotrophs?
    8·1 answer
  •   How many silver (Ag) atoms are in a silver bar that is 20.0 g?     
    14·1 answer
  • For this question, use the following balanced equation:
    6·2 answers
  • Can magic 8 ball wash with water?
    6·1 answer
  • Write the chemical formula for the following: sulfate
    5·1 answer
  • Explain why gas particles move around faster than liquid particles
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!