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
Butoxors [25]
3 years ago
5

Chemistry intro please help

Chemistry
1 answer:
evablogger [386]3 years ago
5 0

Answer:

The protons and electrons are attracted to each other because they are oppositely charged particles.

Explanation:

Protons have a positive charge and electrons have a negative charge, opposites attract.

You might be interested in
In the diagram, which letter represents the transition from liquid to gas?<br> B<br> A<br> D<br> C
lana66690 [7]
I got on here because I don't understand the question but I did my best to answer because I noticed you asked 3 days ago. IF I'm right the answer is D. My diagram shows
A at -50 °C
B at 0 °C
C at 50 °C
D at 100 °C (gas to liquid or liquid to gas)
And E at 150 °C
So I hope I'm right because I'm answering the same question.
5 0
3 years ago
Briefly describe how a potentiometric pHmeter works. (Hint: Describe how the pH meter measures the amount of H+ or OH- ions in a
KengaRu [80]

Answer:

Indicators show changes in the pH of a solution

Explanation:

A pH meter is an instrument that measures the hydrogen-ion activity in aqueous solutions, indicating the acidity or alkalinity of the solution expressed as pH .The pH meter measures the difference in electrical potential between a pH electrode and a reference electrode, hence the pH meter is sometimes referred to as a potentiometric pH meter. Potentiometric pH meters measure the voltage between two electrodes and display the result converted into the corresponding pH value. The instrument comprises of a simple electronic amplifier and a pair of electrodes, or alternatively a combination electrode, and some form of display calibrated in pH units. It usually has a glass electrode and a reference electrode, or a combination electrode. The electrodes, or probes, are inserted into the solution to be tested.

Organic indicators are chemical species that change their colour in response to changes in the pH of the solution. This implies that the anionic and protonated forms of the indicator possess different colours. Hence the colour changes in acidic, basic and neutral solutions. The images attached indicate the colour changes in phenolphthalein and methyl orange in acidic and basic media accordingly.

4 0
2 years ago
13. List the following ions in order of increasing radius: Li+, Mg2+, Br"
Sergeeva-Olga [200]

Answer:

The answer would be B, PC13

Explanation:

5 0
2 years ago
Read 2 more answers
A chemistry student is given 700. mL of a clear aqueous solution at 26.° C. He is told an unknown amount of a certain compound
Alex73 [517]

Answer:

The correct answer is - yes, 4.57 g of solute per 100 ml of solution

Explanation:

The correct answer is yes we can calculate the solubility of X in the water at 22.0°C. The salt will remain after the evaporate from the dissolved and cooled down at 26°C.

Then, the amount of solute dissolved in the 700 ml solution at 26°C is the weighed precipitate: 0.032 kg = 32 g.

Then solublity will be :

32. g solute / 700 ml solution = y / 100 ml solution

⇒ y = 32. g solute × 100 ml solution / 700 ml solution = 4.57 g.

Thus, the answer is 4.57 g of solute per 100 ml of solution.

5 0
2 years ago
Chemical bonds release energy when they break apart, and take in energy when they form. How does this observation help explain t
soldier1979 [14.2K]
ENERGY WOULD BE RELALISED, MEANING BONDS ARE BEING BROKEN, SO IT IS AN EXOTHERMIC REACTION
6 0
3 years ago
Read 2 more answers
Other questions:
  • Question 7.7. All amino acids have a central carbon with four components attached to it. One of these components is called the R
    6·1 answer
  • If 25.0 mL of 0.451 M NaOH solution is titrated with 0.253 M H2SO4, the flask at the endpoint will contain (besides the indicato
    13·1 answer
  • Please help with these two thank you!
    5·1 answer
  • What did the atomic bomb result from
    15·1 answer
  • A pressure of 760.0 mm hg is equal to
    11·1 answer
  • An ideal gas cannot exist outside of ideal gas conditions<br><br> true or false ?
    7·1 answer
  • An ion from a given element has 38 protons and 36 electrons what is the charge
    8·1 answer
  • Which statement best explains why an object appears green in sunlight?
    10·1 answer
  • How much 6.0 M of nitrous acid (HNO2), in milliliters, is needed to make 235 mL of 1.00M<br> HNO2?
    7·1 answer
  • Which elements on the periodic table are not reactive? Why?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!