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
kondaur [170]
3 years ago
11

Which of the following is an example of an exothermic reaction?

Chemistry
1 answer:
WINSTONCH [101]3 years ago
4 0
D but I’m not to sure about it
You might be interested in
10 molecules SO2 to moles
cluponka [151]

Answer:

1.66 * 10^-23 moles

Explanation:

If you follow dimensional analysis, molecules to moles is 10 molecules divided by 6.022 times 10 to the 23rd and that gives you your answer

3 0
4 years ago
Which action is a change in state
oee [108]
C because it’s changing
8 0
3 years ago
Read 2 more answers
A group of organisms which lives together in an area is called a(n): species habitat community environment
Dovator [93]
C.) community, hope this helped
6 0
4 years ago
Read 2 more answers
Name 2 different types of local winds and explain each.please.
marshall27 [118]
1. Planetary Winds:

The winds blowing through­out the year from one latitude to another in response to latitudinal differences in air pressure are called “planetary or prevailing winds”. They involve large areas of the globe.

4. Periodic Winds:

Periodic winds change their direction periodically with the change in season, e.g., Monsoons, Land and Sea Breezes, Mountain and Valley Breezes.

7 0
4 years ago
A sample of the mineral hematite Iron (III) oxide has a mass of 12.4g. How many moles of the mineral are present?
8090 [49]

Thus problem is providing us with the mass of iron (III) oxide as 12.4 g so the moles are required and found to be 0.0776 mol after the calculations:

<h3>Mole-mass relationships:</h3>

In chemistry, we use mole-mass relationships in order to calculate grams from moles and vice versa. In this case, since we are given the mass of iron (III) oxide as 12.4 g one can calculate the moles by firstly quantifying its molar mass:

Fe_2O_3\rightarrow 2*55.85 g/mol+3*16.00 g/mol=159.7g/mol

Then, we prepare a conversion factor in order to cancel out the grams and thus, get moles:

12.4gFe_2O_3*\frac{1molFe_2O_3}{159.7gFe_2O_3} \\\\=0.0776molFe_2O_3

Learn more about mole-mass relationships: brainly.com/question/18311376

8 0
2 years ago
Other questions:
  • For the quantum number lower case L = 0, how many possible values are there for the quantum number m subscrip l?
    14·1 answer
  • Which of the following statements best explains the observation that hydrogen fluoride has the highest boiling point of all the
    13·1 answer
  • Why is co2 collected by downward delivery in preparation​
    7·1 answer
  • List the two factors that affect ionic bond
    12·1 answer
  • Which element ends in 4d2
    7·1 answer
  • A sample of pure radioactive isotope is left to decay. After 40.0 days, the 1 point
    8·1 answer
  • A molecule, Z, contains two atoms of oxygen, six atoms of hydrogen and three atoms of carbon. What is the formula of Z?​
    15·1 answer
  • Which of the following would not be considered a chemical reaction?
    13·1 answer
  • WILL GIVE BRAINLIEST
    10·1 answer
  • The ideal gas constant, R has several different values that could be used. Which quantity causes these differences?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!