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
attashe74 [19]
2 years ago
12

Define mass number of an atom.​

Chemistry
1 answer:
Georgia [21]2 years ago
6 0
The mass number of an atom is basically the total number of protons and neutrons.
You might be interested in
Which substance is a base? HCOOH RbOH H2CO3 NaNO3
Alex Ar [27]

Answer:

RbOH

Explanation:

For this question, we have to remember what is the definition of a base. A base is a compound that has the <u>ability to produce hydroxyl ions</u> OH^-, so:

AOH~->~A^+~+~OH^-

With this in mind we can write the <u>reaction for each substance:</u>

HCOOH~->~HCOO^-~+~H^+

RbOH~->~Rb^+~+~OH^-

H_2CO_3~->~CO_3^-^2~+~2H^+

NaNO_3~->~Na^+~+~NO_3^-

The only compound that fits with the definition is RbOH, so this is our <u>base</u>.

I hope it helps!

6 0
3 years ago
Read 2 more answers
Can anyone help me with Science Grade 6 questions , soon as possible?
jolli1 [7]
Well depending on how many people on one side of the family, you would inherite  their trait more commonly.
6 0
3 years ago
PLEASE HELP, CHEMISTRY!!! 20 POINTS!!!
mart [117]

the answer is in the picture

6 0
3 years ago
Read 2 more answers
Most reactive<br> O Be<br> O Mg<br> O Ba<br> o Ca<br> Which one is the most reactive
katen-ka-za [31]

Answer:

Mg

Explanation:

I think the answer is Mg

7 0
3 years ago
The _____ is one of the way paces where North America and Pacific Plates meet.
Morgarella [4.7K]

Answer:

The ring of fire

Explanation:

The ring of fire is where they meet or at the fault lines

8 0
3 years ago
Read 2 more answers
Other questions:
  • How do you predict products?
    12·1 answer
  • 22. A flask containing 450 mL of 0.50 M H2SO4 was accidentally knocked to the floor. How many grams of NaHCO, do you need to put
    8·1 answer
  • How do the properties of table salt compare with those of sodium and chlorine?
    7·1 answer
  • N2 +3h2 2nh3 how many moles of hydrogen are needed to completely react with two moles of nitrogen?
    10·1 answer
  • How many moles of cl- ions are needed to completely combine with 0.25 moles of mg+2 ions? 0.175 0.75 0.50 0.25 0.125?
    6·1 answer
  • Avoltic cell prepared using aluminium and nickle has the flowing cell notation ​
    6·1 answer
  • Write the oxidation number for the following elements: for brainliest answer
    12·1 answer
  • What is the approximate volume of 19g of fluorine gas at a pressure of 4.0 atmospheres and a temperature of 127o C?
    7·1 answer
  • What is the value of k for this aqueous reaction at 298 k?
    15·1 answer
  • Anyone solve this for me​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!