Which of these minerals would most likely be valued as a gem and used in jewelry?

olivine, a green or gray mineral with a hardness rating of 6.5
gypsum, a pink or white mineral with a hardness rating of 2
galena, a metallic silver mineral with a hardness rating of 2.5
science

Answers

Answer 1

Answer:

b? I hope this helps! Let me know :)

Explanation:


Related Questions

Which type of front occurs when cold air and warm air are next to each other, but are at a standstill?
warm front
stationary front
cold front
occluded front
Which is it? grade 6 science class, pls help me, thank u, I'm sure I'm the lowest grade on Brainly so yeah this would be easy for you lol. l m a o!!!! ;) thx

Answers

Occluded font. For sure

Please help y’all I don’t understand

Answers

Answer:

I believe it is 2

Explanation:

I just learned this in my class too, so I'm not sure

2
because you can only merge 4 into 2 :)

Many photographers take pictures of scenety. Below is a sample of a popular technique that they use. The technique captures a picture of the mountains and the sky in the water. Identify which property of light is being demonstrated in this technique.
A. interference
B. water colors
C. refraction
D. reflection​

Answers

The answer is D/Reflection. A and B are not it so between C and D, Refraction is to bend. Reflection is to mirror something.

The property of light being demonstrated in the picture is reflection of light.

What is reflection?

Reflection of light is defined as a property of light ray that when it strikes a smooth surface it bounces back .Objects can be seen due  to this property of light.Reflection is produced by all types of waves namely sound waves, light waves, electromagnetic waves.

Reflection of light is governed by laws of reflection which are also called as Snell's laws. According to laws of reflection, angle of incidence and angle of reflection are equal.The incident ray , reflected ray and normal all lie on the same side of the plane.Light travels in a straight line before, after and during the process of reflection.There are 3 types of reflection which are diffuse reflection,specular reflection and glossy reflection.

Learn more about reflection,here:

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What are the regions of the spectrum with wavelengths that can pass through the atmosphere called?

Answers

Answer:

These regions of the spectrum with wavelengths that can pass through the atmosphere are referred to as "atmospheric windows." Some microwaves can even pass through clouds, which make them the best wavelength for transmitting satellite communication signals.

Explanation:

Hope this helps. Have a great rest of your day :)

Calcium has a charge of +2. The chart lists the charges of different ions.

Which are possible equations for an ionic compound with calcium?

CaO, CaMg, or CaF2
Ca2Cl, CaNa, or CaP
CaF, CaMg, or CaNa
CaO, CaF2, or CaCl2

Answers

Answer:

I think it is

Ca2Cl, CaNa, or CaP

Explanation:

B

Explain: Hope this helped!

NEED HELP! ASAP! analyze and state the relationship between the independent and dependent variable by describing how the dependent variable reacted to the change in the independent variable. If you used a control, you shoukd compare the data to the control.​

Answers

okay , so basically refrase it and you should keep it.

Answer: Depends on the experiment.

Explanation:

For any experiment, the fact remains that the independent variable always affects the measurement of the dependent variable. The independent variable is the factor in the experiment that you are changing. The dependent variable is, more often than not, the result of the change. Compare the relation between the two sets of data - probably graph it if it helps. The control data is the set of data gathered from the experiment where all the factors are not changed and are standardized. This is, in essence, the "original" data. Compare the changed data to this data. Hope it helped!

A candle burning is an example of _____. an exothermic change an endothermic change a physical change energy being taken in

Answers

Answer:

chemical change

Explanation:

it is turning into a different substance as it burns

ur welcome

chemical change

the process of burning is a chemical reaction, which would occur in a chemical change

Sulfuric acid is a colorless, oily liquid, used in the manufacturing of detergents, fertilizers, dyes and pigments, and even explosives. The chemical formula for sulfuric acid is H2SO4. Students were asked to make claims about how many total atoms are in this formula and support their claim with evidence. Choose the correct claim with the best supporting evidence. A. Ryan said there are 8 total atoms: two hydrogen (H) atoms, two sulfur atoms (S), and four oxygen (O) atoms. B .Camila said there are 7 total atoms: one hydrogen (H) atom, two sulfur atoms (S), and four oxygen (O) atoms. C. Parris said there are 7 total atoms: two hydrogen (H) atoms, one sulfur (S) atom, and four oxygen (O) atoms. D. Anthony said there are 10 total atoms: two hydrogen (H) atoms, four sulfur (S) atoms, and four oxygen (O) atoms.

Answers

Answer:

Sulfuric acid is the most widely used acid in industry. It is used to make detergents, dyes, drugs, explosives, pigments, fertilizers, and many other products. It is also the acid in lead-acid electric batteries. Chemical formula: H2SO4.

Explanation:

The answer is B.

I hope this helps! :)

Please help y’all I don’t understand

Answers

Answer:

2 electrons

Explanation:

If you look at the periodic table, you will see that oxygen is in group 16. If you subtract 10 from 16, you will get 6 electrons, which means oxygen has 6 valence electrons. In order to become stable, you need 8 electrons. So add 2.

2 electrons. hope you get it right !

Greenhouse gases in the atmosphere trap

A.solar energy leaving Earth.

B.infrared energy leaving the sun.

C.solar energy near Earth's surfaces.

D.infrared radiation leaving Earth.

Answers

Answer: C

Explanation: the light energy is from the sun which other than light energy, is equal to solar energy, confirming that the answer is C
C would be the answer.

PLEASE HELP ILL MARK BRAINLEST
Record your data either in your lab notebook or in the space below.

Table A. Predictions of Kinetic Energy and Resulting Beanbag Height for Varying Masses
Mass

(kg)
Velocity

(m/s)
Kinetic Energy

(kg∙m2/s2)
Height of Beanbag
(m)
Average Height of Beanbag
(m)
0.125














0.250














0.375














0.500















Observations

Answers

Answer:

Answer:

0.35

0.91

1.26

1.57

Explanation:

did it on edge

Answer:

Hey lol, not sure why my answer got deleted and why I got warned but regardless of the reason, the answer should be: 0.35, 0.91, 1.26, 1.57

Explanation:

I did it yesterday on e d g e n u i t y

this is the last free pts for the day but you have to answer this still to earn Brainliest, k? Guess what time zone I live in, dudes? ;)
I'm a girl btw

Answers

Answer:

ummm Eastern time zone

Answer:

mountain time zone?

Explanation:

thats where im in :)

. What units would you use to measure a red blood cell?
1. Nanometers
2. micrometers
3. millimeters

Answers

Answer:

nanometers im guessing :<

Explanation:

With unbalanced forces, the object will move in the direction of the _____ force.

A) cannot be determined
B) larger
C) equal
D) smaller

Answers

b. larger force

when it’s larger the force has more mass thus pushing the weaker or smaller side

Answer:

b: LARGER

Explanation:

im just different :)

pleassssse helpppppp

Answers

Answer:

Solar Energy

Explanation:

Social energyyyyyyyyyyyyy

PLEASE HELP ASAP

Is mass conserved when 40 g of sodium hydroxide undergoes a chemical change during an interaction with 36.5 g of hydrogen chloride? Use complete sentences to support your answer by explaining how this can be demonstrated.

Answers

Answer:

Explanation:According to the law of conservation of mass (mass remains the same throughout a reaction), mass is conserved in this case. This can be proven by comparing the weight of two enclosed glass containers of the reaction. They will most likely have the same weight because the products the chemical reaction creates would most likely produce a gas that can be trapped if there is no opening in the glass container. To further investigate, compare the weights of the products of the reaction with an enclosed container to another container with no lid of the same reaction.

CAN SOMEONE PLS HELP ME? IDK HOW TO MAKE CONCLUSIONS. JUST TEACH ME HOW :)

How to state whether your hypothesis is supported or not supported by your results?​

Answers

A conclusion is basically something over all you wrote. So basically what you can do for a conclusion is maybe write something about each paragraph(s) but make it short sorry if this is bad :(
A conclusion is the end or finish of an event or process

Question: Animals respond to threats in their environment by attacking or escaping. Either response is the result, mostly, of interactions between...

Answers: A.The circulatory system and the reproductive system.
B.Blood circulation and hormone production.
C.The nervous system and the muscular system
D.Respiratory rates and defense against pathogens.

Answers

I think the answer is B
But to be honest I haven’t done this in awhile

Animals respond to threats in their environment by attacking or escaping is the result of interactions between the nervous system and the muscular system.

What is nervous system?

The nervous system is the largest controlling, intercommunicating and regulative system in the body.

Animals respond to threats in their environment by two ways-

They attack to the threats.They escape from the threats.

Either response is the result, mostly, of interactions between the nervous system and the muscular system. This system includes all the muscles in the body and nerves.

The nervous system is the connection between the thoughts of brains to the different parts of the body to take the necessary action.

Thus, the animals respond to threats in their environment by attacking or escaping is the result of interactions between the nervous system and the muscular system.

Learn more about the nervous system here;

https://brainly.com/question/869589

help pls match allll

Answers

2-A
1-B
5-C
4-D
3-E

I hope this helped:)

The type of heat transfer responsible for distributing most of the heat throughout Earth's atmosphere is

A.radiation

B.conduction

C.convection

Answers

Answer:

A

Explanation:

A.

Explanation:

hope it helps. if im incorrect. please report so people don't think its the correct answer. <3

What is a mixture in science?

Answers

Answer:

Different elements together that can be separated again

Answer:

a mixture is a material made up of two or more different substances which are physically combined.

Explanation:

Please help y’all I don’t understand

Answers

Answer:

D.

Explanation:

You try to get 8 electron on the outermost "shell" so you have no left over or "valence" electrons.

D because octet means 8

Which statement describes how pioneer species and climax communities are different?

A. Pioneer species tend to have large body sizes, and climax communities contain species with only small body sizes

B. Pioneer species mark the end of succession, and climax communities mark the beginning

C. Primary species have many species types, and climax communities have few species

D. Primary species have large numbers of offspring, and climax communities contain species that have small numbers of offspring


PLEASE HURRY!!!!!!!!!!!!! God bless all! :)

Edited at 12:55 p.m.: I found the answer so if you still want points just put down whatever you want to. Nothing mean though. Thanks and God bless

Answers

That answer for that question is B

Explanation:

thaks!!!!!!!!!!!!!!!#!

Question 2 (2 points)
(03.01 LC)
There are more protons than electrons in a positively charged atom. (2 points)

OTrue

OFalse​

Answers

Answer:

True.

General Formulas and Concepts:

Chemistry

Reading a Periodic TableNeutral Atoms and IonsCharges

Explanation:

Protons have a positive (+) charge.

Electrons have a negative (-) charge.

If the ion is positively charged, that means that there are more protons than electrons. Therefore, the statement is true.

Why does salad become soggy and wilted when the dressing has been on it for a while? Explain why, in terms of osmosis. PLS HELP FAST!

Answers

This means the water from the leaves goes into the dressing, causing the leaves to appear wilted.

I'm very tired so if you could help with these that would be great.

Answers


Here you go hope this helps

Judging from the diagram, which of the following statements is true?
A. Sound travels at the same speed through both cold and warm air.
B. Sound travels faster through cold air than through warm air.
C. A sound wave's wavelength shortens when it travels from cold air into warm air.
D. Sound travels faster through warm air than through cold air.​

Answers

Answer: D, sound travels through warm air faster than cold

Explanation:

Molecules move faster and transmit more sound vibrations in warm air.

The mass of the electron is..
A) about equal to the neutron
B) almost the same as the proton
C) very small compared to the proton
D) very large compared to the neutron

Answers

C, its only 1/1836 the mass of a proton.

PLEASE HELP ME ASAP!!! THIS IS DUE UNTIL 1:30 PM!!! Tell how many Elements are in this compound and tell what the Elements are. NaClOFeCoH

Answers

Answer: 13

Explanation: I got it right

Answer:

6 elements

Explanation:

each element Na, Cl, O, Fe, Co, H

the color of a mineral is powdered form
a. luster
b.streak
c.hardness
science i need help please

Answers

Answer: Streak

Explanation: The color of a mineral in powdered form is called the mineral's streak. To find a mineral's streak, the mineral is rubbed against a piece of unglazed porcelain called a streak plate. The mark left on the streak plate is the streak.

The streak of a mineral is its powder's color, because streak does not vary, it is a more dependable quality than color. Minerals of the same color may have a streak of a different hue, hence option B is correct.

The streak of a mineral refers to the color of the material when it is in powdered form. A streak plate is an unglazed piece of porcelain that is used to locate a mineral's streak. The streak is the mark that was left on the streak plate.

When minerals are powdered, they often take on a distinct hue than when they are in crystal or massive form. It might be a completely different tint or a completely different color.

Learn more about streak, here:

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