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
PilotLPTM [1.2K]
3 years ago
15

Which item does not depend on rare earth elements?

Chemistry
1 answer:
Alisiya [41]3 years ago
6 0

Answer:

Perrous magnets

Explanation:

You might be interested in
Given the reactant side of the total ionic equation for the neutralization reaction of sodium hydroxide (NaOH) with hydrochloric
PIT_PIT [208]
<span>Just to help to understand what is happening here, I will show you the complete non ionic reaction (this is just a reference not the answer)

NaOH (aq) + HCl (aq) -> NaCl (aq) + H2O

Now, you have to separate the ionics substances into the ions, which gives the desired answer:
 </span>
<span>Na+(aq)+OH−(aq)+H+(aq)+Cl−(aq)→</span><span> Na+ (aq) + Cl- (aq) + H+ (aq) + OH- (aq)


</span>

6 0
4 years ago
Scientists have established that some of the layers of Earth are solid, some are liquid, and some are semi-fluid. Explain how th
tigry1 [53]
They can determine the liquid layers and solid layers by seismic waves
<span />
7 0
4 years ago
Read 2 more answers
a student is given two 10g samples, each a mixture of only NaCL(s) and KCI(s) but im different proportions. how does knowing the
shepuryov [24]

Answer:

Knowing the mass of chlorine in each mixture will enable you find the empirical formulas that will lead to molecular formulas for the compounds in the mixture.This information will help you determine which mixture has a higher proportion of the compound in question.

Explanation:

In determining the percent composition of a compound in a mixture,mass of a compound will be the first step to be determined.This will then allow you to find mole to mole ratio of all elements in that compound.Having mole ratio information, and mass, it will be possible to find ratio of ions in the compound,and determine the mixture with higher proportion of the compound.

Molecular weight and the empirical formula of the compound will led you to the molecular formula of the compound,that will show you the mole ratios which now you can use to determine proportions of the compound in a mixture.

3 0
3 years ago
A challenge that could be seen when use of technology is increased is a(n) __________ in unemployment rates. 1 decrease 2 increa
arlik [135]
Increase

Unemployment could increase because robots could be used in place of human labor, which in turn means people lose their jobs.
4 0
3 years ago
Describe the bonding between sodium chloride and calcium carbonate.
egoroff_w [7]

Answer:

When the transfer of electrons occurs, an electrostatic attraction between the two ions of opposite charge takes place and an ionic bond is formed. A salt such as sodium chloride (NaCl) is a good example of a molecule with ionic bonding

7 0
3 years ago
Other questions:
  • PLEASE HELP WITH THIS ONE TRUE OR FALSE QUESTION!!!
    9·1 answer
  • How many moles in 1 teaspoon of sand , chalk , sugar
    8·1 answer
  • Boron sulfide, B2S3(s), reacts violently with water to form dissolved boric acid (H3BO3) and hydrogen sulfide gas.Express your a
    15·1 answer
  • Precision can be defined as
    11·2 answers
  • The table below compares the radioactive decay rates of two materials. Material Original mass of material (in grams) Mass of mat
    12·1 answer
  • which type of organism can be obtained energy directly from any of the other organisms in the ecosystem
    8·1 answer
  • Continental glaciers have depressed the crust below them true or false
    5·1 answer
  • What amount of moles does 60.5 L of carbon dioxide occupy at 2.15 atm and 25 degrees C?
    13·1 answer
  • Magnesium hydroxide is added to a solution of hydrochloric acid. A reaction occurs and magnesium chloride and water are formed.
    5·1 answer
  • How do you use Reference Point in Science
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!