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
igor_vitrenko [27]
4 years ago
8

Which components of the atom have a positive charge?

Chemistry
2 answers:
-BARSIC- [3]4 years ago
8 0

Answer:

Protons have a positive charge

Explanation:

Electrons have a negative charge and neutrons are neutral

Sveta_85 [38]4 years ago
4 0

Answer:

protons have a positive, neutrons have no charge and electrons have a negative chage

Explanation:

You might be interested in
What is the percent yield of LiCl if I produced 30.85g LiCl and my theoretical yield was calculated to be 35.40g LiCl?
marissa [1.9K]

Answer:

87.15%

Explanation:

To find percent yield, we can use this simple equation

\frac{Actual}{Theoretical} *100

Where "Actual" is the amount in grams actually collected from the reaction, and "Theoretical" is, well, the theoretical amount that should have been produced.

They give us these values, so to find the percent yield, just plug the numbers in.

\frac{30.85}{35.40} *100\\\\ =87.15

So, the percent yield is 87.15%

An easy trick to remember how to do this is just to divide the smaller number by the bigger number and move the decimal back two places. If you have a percent yield greater than 100%, something is wrong in the reaction.

7 0
3 years ago
Why does liquid exerts pressure​
andriy [413]

Answer:

The particles of fluids are constantly moving in all directions at random. As the particles move, they keep bumping into each other and into anything else in their path. These collisions cause pressure, and the pressure is exerted equally in all directions.

3 0
3 years ago
How many liters of oxygen are needed to exactly react with 19.8 g of methane at stp? ch4(g) + 2 o2(g) → co2(g) + 2 h2o(l)?
Sedaia [141]
55.44 L O2 is needed. 
:)
7 0
3 years ago
4. a compound called pyrene has the empirical formula c8h5. when 4.04 g of pyrene is dissolved in 10.00 g of benzene, the boilin
e-lub [12.9K]

The molecular mass of pyrene is 204.4 g/mol.

From;

ΔT = Kb m i

Where;

  • ΔT = boiling point elevation
  • Kb = boiling point constant
  • m = molality
  • i = Van't Hoff factor

Since the compound is molecular; i = 1

The number of moles of pyrene = 4.04 g/MM

Where; MM = molar mass of pyrene

molality = number of moles of pyrene/mass of solvent in Kg

The mass of solvent = 10 g or 0.01 Kg

molality =  4.04 g/MM/0.01

ΔT = Boiling point of solution - Boiling point of pure solvent

ΔT = 85.1°C - 80.1°C

ΔT = 5°C

5 = 2.53 × 4.04 g/MM/0.01 × 1

5 = 10.22 × 1/0.01 MM

0.05MM = 10.22

MM= 10.22/0.05

MM= 204.4 g/mol

Learn more: brainly.com/question/2292439

3 0
2 years ago
Explain the role of rhinos in the food chain?
hichkok12 [17]
The role of rhinos in the food chain is... <span>White rhinos are grass-grazing animals, while black rhinos are low browsers. They fill similar roles in their ecosystems to other grazers and browsers. Their size means they eat a LOT, and also means that generally only their offspring are preyed on. So, recycling and trampling high-carbon foliage into fertilizer is their main function.
          hope this helped</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • What produces magnetic fields?
    9·2 answers
  • The solubility of potassium chloride in boiling water is 56.3 g/100 g water. if you add 250.0 g of potassium chloride to 50.0 g
    10·2 answers
  • What are two types of cold air masses that influence the weather in North America? Name them and describe their humidity.
    5·1 answer
  • HELPPPP PLZ
    13·2 answers
  • PLEASE HELP Which of these could DNA determine?
    6·2 answers
  • Which statement about copper, diamond, and silicon(IV) dioxide is correcta)Copper and silicon(IV) dioxide have similar electrica
    9·1 answer
  • Hi can you balance the equation Fe + O2 = Fe2O3
    7·1 answer
  • What is an element made up of?<br>​
    11·2 answers
  • 6. Add the following numbers together and show your answer in grams:
    11·1 answer
  • Which process describes the melting of ice cream?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!