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
alexandr1967 [171]
3 years ago
6

An atom that has a charge because it has gained or lost electrons is

Chemistry
1 answer:
Arturiano [62]3 years ago
5 0
An ions have charge and it gains or loses electrons.
You might be interested in
Melatonin has the chemical formula C13H16N2O2. Less than 10 milligrams(0.01g) Convert the melatonin to moles
oee [108]

Answer: There are 0.000043 moles of melatonin.

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

given mass = 10 mg = 0.01 g

molar mass of C_{13}H_{16}N_2O_2 = 232.28 g

{\text {moles of melatonin}}=\frac{0.01g}{232.28g/mol}=0.000043moles

Thus there are 0.000043 moles of melatonin

6 0
3 years ago
Given the balanced equation representing a reaction:
notsponge [240]

Answer:

it is a base because they accept H+ ions

Explanation:

4 0
3 years ago
Based on the observations of how the different forms of salt start mixing with the
zimovet [89]
I would expect fine salt to fully dissolve by the end of 45 minutes. Since the other types of salt are not fine and tiny, they would take longer to dissolve
7 0
2 years ago
Read 2 more answers
I do not understand what to do here
DanielleElmas [232]

Answer:

Just Send Answers to make points

Explanation:

6 0
3 years ago
Help PLEASE HELP PLEASE
Gennadij [26K]

Answer:

b. k+

Explanation:

4 0
3 years ago
Other questions:
  • A teaspoon of the carbohydrate sucrose (common sugar0contains 16 Calories (16 KCal). What is the mass of the teaspoon of the suc
    11·1 answer
  • State the number of electrons that must be lost by atoms of
    6·1 answer
  • In an experiment you are asked to react hydrochloric acid with sodium hydroxide. when measuring the volume of the reactants, whi
    5·2 answers
  • Why might it be useful to determine the elements that a planet or moon is made up of?
    15·1 answer
  • Which of the following statements correctly distinguishes between an acidic and a basic solution?
    6·2 answers
  • The rate constant for a first-order reaction is 0.54 s-1. What is the half-life of this reaction if the initial concentration is
    6·1 answer
  • What state of matter has no visible shape and fills its container?
    9·2 answers
  • How are Newton’s Laws evident in everyday moving objects?
    11·1 answer
  • Which of the following is a transition element<br> A)H<br> B) He<br> C) Fr<br> D) Rn<br> E) Rh
    13·1 answer
  • What is the oxidation state of Hydrogen in H20<br><br> +2<br> +1<br> -2<br> -1
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!