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
dimulka [17.4K]
3 years ago
8

The atomic number of an atom is

Chemistry
1 answer:
frosja888 [35]3 years ago
5 0

Answer:

b, the number of protons added to the number of neutrons

Explanation:

You might be interested in
In the event that you are exposed to infectious materials by being accidentally stuck with a used needle, you should report it t
bagirrra123 [75]
Use a tourniquet to reduce the rate of it spreading
6 0
3 years ago
Read 2 more answers
How many moles of HCl are present in 4.7 L of a 4.23 M HCl solution?
REY [17]

Hey There!

Volume = 4.7 L

Molarity = 4.23 M

Therefore:

n = M *V

n = 4.23 * 4.7

n = 19.881 moles of HCl

hope this helps!

6 0
3 years ago
Convert 1.75 g/mL to the unit g/m3. Answer Choices: (1.75 x 106 g/m3), (1.75 x 102 g/m3), (1.75 x 10-2 g/m3), (1.75 x 10-6 g/m3)
Marta_Voda [28]
 Answer : 1750000g/cm3
4 0
4 years ago
At a birthday pool party, the temperature is 28.50°C and the atmospheric pressure is 755.4 mmHg. One of the decoration helium ba
Iteru [2.4K]

Answer:

The volume of the balloon will be 5.11L

Explanation:

An excersise to solve with the Ideal Gases Law

First of all, let's convert the pressure in mmHg to atm

1 atm = 760 mmHg

760 mmHg ___ 1 atm

755.4 mmHg ____ (755.4 / 760) = 0.993 atm

922.3 mmHg ____ ( 922.3 / 760) = 1.214 atm

T° in K = 273 + °C

28.5 °C +273 = 301.5K

26.35°C + 273= 299.35K

P . V = n . R .T

First situation: 0.993atm . 6.25L = n . 0.082 . 301.5K

(0.993atm . 6.25L) / 0.082 . 301.5 = n

0.251 moles = n

Second situation:

1.214 atm . V = 0.251 moles . 0.082 . 301.5K

V = (0.251 moles . 0.082 . 301.5K) / 1.214 atm

V = 5.11L

7 0
3 years ago
Read 2 more answers
What is the volume of the sample at stp?
Yuki888 [10]
At stp the volume is 22.4 L .

hope this helps!
3 0
3 years ago
Other questions:
  • How does the kinetic molecular theory explain the behavior of gases?
    6·1 answer
  • What does the law of conservation say about matter?
    12·1 answer
  • When water exposed to the air changes from liquid to gas
    9·2 answers
  • How many moles are in 12 gr of magnesium?
    9·1 answer
  • Ron weasley isn't the best experimentalist. after an experiment he ends up with only 3.10 g of product. however, the same reacti
    12·1 answer
  • How do the melting and boiling points of pure water differ from those of a sugar-water solution?
    14·2 answers
  • Which types of reactions are also redox reactions?
    14·2 answers
  • 1- beaver<br> 2- eastern mole<br> 3- opossum <br> 4- woodchuck
    7·1 answer
  • How can you determine the products of a single or double displacement reaction?
    12·1 answer
  • How many grams are in 4 5 moles of sodium fluoride naf
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!