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
son4ous [18]
3 years ago
5

Why were Opportunity and Spirit sent to Mars' surface? A. to look for alien life B. to study the rocks and soil C. to study the

atmosphere D. to mine for specific minerals
Chemistry
2 answers:
DanielleElmas [232]3 years ago
6 0
Mine for specific minerals. because we have done all the other things already
alexandr1967 [171]3 years ago
5 0
D. to mine for specific minerals

You might be interested in
What does multivalent mean???
salantis [7]
In the context of multivalent ions, it is when it has multiple oxidative states. 
4 0
3 years ago
Give an example of a balanced force.
lutik1710 [3]

Answer:

When two forces are the same strength but act in opposite direction, they are called balanced forces. Again, tug-of-war is a perfect example. If the people on each side of the rope are pulling with the same strength, but in the opposite direction, the forces are balanced. The result is no motion.

Explanation:

Hope this helps!

7 0
3 years ago
Read 2 more answers
The smallest unit of a compound is called a ___________.
Oxana [17]
<span>The smallest unit of a compound is called a molecule. The correct option among all the options that are given in the question is the second option or the penultimate option or option "B". The other choices are incorrrect and can be negated. I hope that this is the answer that has actually come to your desired help.</span>
5 0
3 years ago
The process by which nitrogen gas is converted to a usable form is called nitrogen
LenaWriter [7]

Answer: i beleive it is fixation in edge 2020

Explanation:

4 0
3 years ago
Read 2 more answers
An interpenetrating primitive cubic structure like that of CsCl with anions in the corners has an edge length of 664 pm. If the
san4es73 [151]

Answer:

the ionic radius of the anion r^- = 312.52 \ pm

Explanation:

From the diagram shown below :

The anion Cl^- is located at the corners

The cation Cs^+ is located at the body center

The Body diagonal length =  \sqrt{3 \ a }

∴ 2 \ r^+ \ + 2r^- \ = \sqrt{3 \ a}  \\ \\ r^+ +r^- = \frac{\sqrt{3}}{2} a

Given that :

\frac{r^+}{r^-} =0.84   (i.e the  ratio of the ionic radius of the cation to the ionic radius of

                 the anion )

0.84r^- \ + r^- \ = \frac{\sqrt{3}}{2}a  \\ \\  1.84 r^- = \frac{3}{2}a \\ \\ r^- = \frac{\sqrt{3}}{2*1.84}a

Also ; a =  664 pm

Then :

r^- = \frac{\sqrt{3} }{2*1.84}*664 \ pm\\ \\ r^- = 312.52 \ pm

Therefore,  the ionic radius of the anion r^- = 312.52 \ pm

4 0
3 years ago
Other questions:
  • The equilibrium constant of a reaction: A) is not related to the change in free energy of the reaction. B) is the same as the ma
    10·1 answer
  • The titration of 25.00 ml a 0.125 m hclo4 solution requires 27.07 ml of koh to reach the endpoint. what is the concentration of
    6·1 answer
  • Which is a strategy for preventing household fires?
    11·1 answer
  • The chemical equation below summarizes cellular respiration. 6O2 + C6H12O6 à 6CO2 + 6H2O + energy The energy that is released by
    8·2 answers
  • All of the following statements are correct except The conversion of compounds into elements is a chemical change. The conversio
    9·1 answer
  • Starting with a vessel of temperature 50.1°C, a pressure of 6263.MmHg and volume 461.1mL, what is its final volume, in liters, i
    14·1 answer
  • Would you measure the height of a building in meters?
    12·2 answers
  • Which of the following coefficients will correctly
    13·1 answer
  • Can someone plz help me ? :(
    11·1 answer
  • How can the total valence electrons for an element be determined? Explain.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!