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
Reika [66]
3 years ago
6

An atom has the same number of wich two particles?

Chemistry
1 answer:
Flura [38]3 years ago
6 0
Protons and electrons
You might be interested in
Juan Carlos placed 35 grams of ke into a dry, 200-gram container. The top of the container was attached tightly. When the ice wa
lianna [129]
Correct answer is D
8 0
3 years ago
In which of these would a nonpolar covalent bond be present? HBr H2O HCI Br2
cluponka [151]
Br2 is the correct answer
5 0
3 years ago
Problem Page Suppose 25.1g of barium nitrate is dissolved in 200.mL of a 0.50 M aqueous solution of ammonium sulfate. Calculate
melomori [17]

Answer:

1.26 M

Explanation:

The ion nitrate is NO₃⁻ and the Barium is from group 2 so it forms the ion Ba²⁺, so the barium nitrate has the formula: Ba(NO₃)₂. The molar masses are: Ba: 137 g/mol, N = 14 g/mol, O = 16 g/mol, so the molar mass of barium nitrate is:

137 + 2x(14 + 3x16) = 199 g/mol

The number of moles is the mass divided by the molar mass, so:

n = 25.1/199 = 0.126 mol of Ba(NO₃)₂

In 1 mol of the salt, there are 2 moles of NO₃⁻, so the number of moles of nitrate is 0.252 mol. Nitrates formed with ammonium (that can react when the solid dissolves) and with elements from group 1 and 2 are completely soluble in water. So, the moles of nitrate will remain 0.252 mol.

The molarity is the number of moles divided by the volume (0.2 L):

[NO₃⁻]= 0.252/0.2 = 1.26 M

3 0
3 years ago
When you have a cold and are infected with the influenza virus, are you the host or the parasite? Host or Parasite​
ololo11 [35]

Answer:

host

Explanation:

the virus exploits your cells

3 0
3 years ago
Read 2 more answers
Câu 28. Khối lượng của electron tính bằng kilogam là
love history [14]

Answer:

the answer is C

Explanation:

because is C

4 0
3 years ago
Other questions:
  • i want to make a presentation on mixtures Clearly describes the process through illustrations or other visuals. Describe termino
    6·1 answer
  • A mole is the amount of a substance that contains as many particles as the number of atoms in 12 grams of what isotope?
    13·1 answer
  • How does a lightning rod protect a<br> building from lightning damage?
    12·2 answers
  • Based on the electron configuration of the two atoms, predict the ratio of metal cationic (+) atom to nonmetal anionic (-) atom
    7·1 answer
  • Part b (r)–3-chloro-2-methylhexane will undergo a nucleophilic substitution reaction in the presence of sodium ethoxide and etha
    13·1 answer
  • 17. A substance breaks down into its component elements when it is heated. If 68.0 g of
    11·1 answer
  • The number of protons in an atom is known as its atomic
    11·1 answer
  • Compounds and mixtures are both types of substances that contain different types of atoms. Alena is given a sample of material t
    6·1 answer
  • Which is more massive, the nucleus OR empty space?
    7·1 answer
  • PLEASE HELP ASAP
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!