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
Anestetic [448]
4 years ago
7

How are igneous rocks formed?

Chemistry
1 answer:
-Dominant- [34]4 years ago
6 0
Igneous rocks are formed when volcanoes erupt, then the form when the lava cools. so the answer is A.

You might be interested in
What is term redox reaction
mash [69]
An oxidation-reduction (redox<span>) </span>reaction<span> is a type of chemical </span>reaction<span> that involves a transfer of electrons between two species. An oxidation-reduction </span>reaction<span> is any chemical </span>reaction<span> in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.</span>
4 0
3 years ago
Read 2 more answers
Scientific evidence shows that Earth's diameter, and thus overall size, does.
Elza [17]
D Continental drift and b
3 0
3 years ago
Help please .......<br><br>​
pshichka [43]

Answer:

The first one is a divergent plate boundary.

The second is a convergent plate boundary.

The third is a transform plate boundary.

Explanation:

8 0
3 years ago
Consider the reaction below. If you start with 4.00 moles of C3H8 (propane) and 4.00 moles of O2 , how many moles of propane wou
fgiga [73]

Answer:

0.800 mol

Explanation:

We have the amounts of two reactants, so this is a limiting reactant problem.  

We know that we will need a balanced equation with moles of the compounds involved.  

Step 1. <em>Gather all the information</em> in one place.

            C₃H₈ + 5O₂ ⟶ 3CO₂ + 4H₂O

n/mol:  4.00    4.00

===============

Step 2. Identify the <em>limiting reactant </em>

Calculate the <em>moles of CO₂</em> we can obtain from each reactant.  

<em>From C₃H₈:</em>

The molar ratio of CO₂: C₃H₈ is 3:1

Moles of CO₂ = 4.00 × 3/1

Moles of CO₂ = 12.0 mol CO₂

<em>From O₂</em>:

The molar ratio of CO₂: O₂ is 3:5.

Moles of CO₂ = 4.00 × ⅗

Moles of CO₂ = 2.40 mol CO₂

O₂ is the limiting reactant because it gives the smaller amount of CO₂.

==============

Step 3. Calculate the <em>moles of C₃H₈ consumed</em>.

The molar ratio of C₃H₈:O₂ is 1:5.

Moles of C₃H₈ = 4.00 × ⅕

Moles of C₃H₈ = 0.800 mol C₃H₈

7 0
3 years ago
At high pressures how does the volume of a real gas compare with the volume of an ideal gas under the same conditions and why
malfutka [58]
Answer: No, a<span>t high pressures, volume of a real gas does not  compare with the volume of an ideal gas under the same conditions.

Reason: 
For an ideal gas, there should not be any intermolecular forces of interaction. However, for real gases there are intermolecular forces of interaction like dipole-dipole and dipole-induced dipole. Further, at high pressures, molecules are close by. Hence, extend of these intermolecular forces is expected to be high. This results in decreases in volume of real gas. Thus, </span>volume of a real gas does not  compare with the volume of an ideal gas under the same conditions.

3 0
3 years ago
Read 2 more answers
Other questions:
  • By changing the number of _______ you get the same element that has a different atomic mass. An example of this would be carbon-
    7·1 answer
  • Help me, please
    5·1 answer
  • When the following two solutions are mixed:
    12·2 answers
  • How do I do this Phenomenal Based writing: Dont mess up the cookies worksheet? I need the answers asap please!!
    6·1 answer
  • Bromine + calcium iodide  calcium bromide + iodine
    11·2 answers
  • What is the name of this hydrocarbon?
    8·2 answers
  • What are electrolytes?
    12·1 answer
  • If the reaction is begun with an initial PH3 concentration of 0.95 M, what will be the concentration of PH3 after 30.50 s
    14·1 answer
  • What is the mass of 4.5 moles of Cu(NO3)2?
    7·1 answer
  • Which of these elements has the highest first ionization energy?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!