CHEMISTRY MIDDLE SCHOOL

How can you use knowledge of a minerals chemical makeup or use? A: To determine how to break down minerals

B: To determine the color of the minerals

C: To classify minerals

D: To identify minerals

Answers

Answer 1
Answer:

and D. to identify minerals
Answer 2
Answer:

Answer: D: Identify minerals

Explanation: If you can figure out the chemical makeup or the use of a mineral, you can identify what kind of mineral it is.

Related Questions

I need this ASAP please
Can you describe how mixtures relate to substances?
If an element has more than one ionic charge, how is that piece of information represented in a chemical name?
Name two different ecosystems.Name one living part of each ecosystem.Name one non living part of each ecosystem.
The phase of matter can be changed by:1. increasing temperature 2. decreasing mass 3. increasing volume 4. all of the above

Three of the primary components of air arecarbon dioxide, nitrogen, and oxygen. In a
sample containing a mixture of only these
gases at exactly one atmosphere pressure, the
partial pressures of carbon dioxide and ni-
trogen are given as Pco, = 0.285 torr and
PN = 634.034 torr. What is the partial pres-
sure of oxygen?
Answer in units of torr.

Answers

Answer:

125.681 torr

Explanation:

The formula to calculate the partial pressure of oxygen:

P(O2) = Pcommon - PCO2 - PN2

1 atm = 760 torr

Therefore you need to find the partial pressure of oxygen:

P(O2) = 760 torr -0.285 torr - 634.034 torr =130.013 torr

- Hope that helped!

ETHANHUNT PLS HELPA light bulb converts electrical energy into light energy and also some thermal energy.  The amount of electrical energy is 50 Joules before the conversions.  
What is the total amount of energy from before the conversions to after the conversions?  

45 Joules because some energy is lost when it is put off as heat.

100 Joules because you start with one form of energy and end up with two forms, so the amount of energy doubles.

50 Joules because as energy converts from one form to another, it cannot be created or destroyed during the conversion. 

55 Joules because as more electricity comes in to the light bulb, the Joules increase.

Answers

The answer is 45 Joules because some energy is lost when it is put off as heat.

When energy is converted there will always be less after the conversion than before, because of the thermal energy loss. Just like it is easier to push something if it is on ice than if it is on grass. That is because there is less friction on the ice to convert some of the energy into thermal energy (or heat)

I hope this helped!! :)

The correct answer is 50 Joules because as energy converts from one form to another, it cannot be created or destroyed during the conversion

I’m which of the following kingdoms are prokaryotes found?i need help ASAP please help

Answers

Don’t Put this as your answer

Which is the cause of mechanical weathering

Answers

Answer:

The mechanical weathering is defined as the breaking down of rocks physically due to the agents such wind, water and ice. In addition this, plant roots, abrasion, rainfall and temperature also plays an important role in wearing away the rocks.

When water, wind flows over the rock surfaces, it erodes the rocks and this is known as the abrasion process. The broken particles (sediments) are transported by these agents and deposited at some other place.

The rocks also undergoes deformation due to the frost wedging process, freeze and thaw method, exfoliation and some other process.

These are the processes that are responsible for mechanical weathering.
there are many causes, Abrasion, is just one of them

What happens when water is added to a sand-salt mixture

Answers

Explanation:

It is known that common salt is NaCl and it is ionic in nature. As all ionic substances are able to dissolve in water because like dissolves like.

Hence, salt will easily dissolve in water.

On the other hand, sand is insoluble in water. Therefore, when sand is added to water then it will not dissolve in water.

Thus, we can conclude that when water is added to a sand-salt mixture then sane being insoluble will not dissolve and it will settle at the bottom after some time. Whereas salt being able to dissolve in water will readily dissolve.
The salt dissolves in the water and the sand will gather at the bottom.

How to I find the number of electrons in and Atom?

Answers

Look at the atomic number of an element on the periodic table which is the smaller number.
The atomic number shows the number of protons/electrons so the number of protons and electrons are the same.
Whereas the mass number of an element (the other number) is the number of protons + neutrons.
Other Questions
A force that keeps objects in motion from going on forever
8. What is the heat of reaction when hydrogen and oxygen combine to form water?2H2(g) + O2(g) → 2H2O(1)(AHC H20(I) = -285.8 kJ/mol)A -120.9 kJB-241.8 kJC-571.6 kJD-285.8 kJ
Is this right?If not what did I do wrong ?
Show by a simple experiment that diffusion becomes faster when temperature is raised