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
konstantin123 [22]
3 years ago
5

Brainly is so boring like upgrade it to be better or something

Chemistry
1 answer:
Nikitich [7]3 years ago
7 0

Answer:

ya same here i hope so btw

You might be interested in
How is electricity and magnetism related
Lunna [17]
Electricity and Magnetism are related as electricity can actually make magnetic material (iron, nickel or silver) magnetic. This is called an electro magnet (a temporary magnet created by wrapping coils around a magnetic core (the electricity powers the coils, magnetising the material)).
3 0
2 years ago
5. What is the difference between a reflected and a diffracted sound wave?
d1i1m1o1n [39]

Answer:

Reflection involves a change in direction of waves when they bounce off a barrier; refraction of waves involves a change in the direction of waves as they pass from one medium to another; and diffraction involves a change in direction of waves as they pass through an opening or around a barrier in their path.

Explanation:

https://www.physicsclassroom.com/class/waves/Lesson-3/Reflection,-Refraction,-and-Diffraction#:~:text=Diffraction%20of%20Waves-,Reflection%20involves%20a%20change%20in%20direction%20of%20waves%20when%20they,a%20barrier%20in%20their%20path.

3 0
2 years ago
Using the following thermochemical equation, determine the amount of heat produced per kg of CO2 formed during the combustion of
Arisa [49]

Answer:  12033 kJ of heat produced per kg of CO_2 formed during the combustion of benzene

Explanation:

The balanced chemical equation for combustion of benzene is :

2C_6H_6(l)+15O_2(g)\rightarrow 12CO_2(g)+6H_2O(g)  \Delta H°rxn = -6278 kJ

Exothermic reactions are defined as the reactions in which energy of the product is lesser than the energy of the reactants. The total energy is released in the form of heat and \Delta H for the reaction comes out to be negative.

\text{Moles of }CO_2=\frac{\text{given mass}}{\text{Molar Mass}}=\frac{1000g}{44g/mol}=23mol      (1kg=1000g)

According to stoichiometry :

12 moles of CO_2 on combustion produce heat = 6278 kJ

Thus 23 mole of CO_2 on combustion produce heat =\frac{6278}{12}\times 23=12033kJ

Thus 12033 kJ of heat produced per kg of CO_2 formed during the combustion of benzene

5 0
2 years ago
Two of the emission wavelengths in the hydrogen emission spectrum are 410 nm and 434 nm. One of these is due to the n=6 to n=2 t
tia_tia [17]
The 410 mm wavelength corresponds to the n=6 to n=2 transition, the 434 mm wavelength corresponds to the n=5 to n=2 transition.

Planck's equation: E=hc/wavelength
n=6 to n=2 corresponds to a higher energy transition and hence shorter wavelength, 410nm.

3 0
3 years ago
Analysis definition?
timama [110]
Analysis is a detailed examination of the elements or structure of something.
7 0
3 years ago
Other questions:
  • Predict whether each of the following molecules is polar or nonpolar? 1. XeF4 3. CCl4 5. CH3Br
    10·1 answer
  • Determine the molar solubility for pb3(po4)2 in pure water. ksp for pb3(po4)2 is 1.0 x 10-54.
    8·1 answer
  • Calculate the number of molecules in 0.75 moles of CH₄. x 10²³ molecules
    14·1 answer
  • Which statement about trade during the period of the Roman Empire is correct? A. Trade supplied Romans with exotic goods and hel
    15·2 answers
  • Which of the following is not an example of a chemical change? (hint:
    6·1 answer
  • When a chemical reaction occurs what happens to the properties of the substance
    5·1 answer
  • If crystal growth does not start on its own after the solution in the flask returns to room temperature, identify the best ways
    7·1 answer
  • Pure hydrogen (H₂) is a hazardous substance. Thus, safer and more cost effective techniques have been developed to store it as a
    10·1 answer
  • Where should you place the label on a line graph for the independent variable?
    13·1 answer
  • Which jobs does the respiratory system do? Select all that apply. It brings oxygen into the blood. It removes carbon dioxide was
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!