Dec
Match each concept to the scientist who supported it.
Isaac Newton
Heinrich Hertz
Light is a wave because this property can
explain interference
Light is a wave because it bends when it
hits barriers and openings.
Light is made of particles because it travels
only in straight paths
Light is a wave made of electric and
magnetic fields
Light is a wave that has similar properties
James Clerk Maxwell
Christiaan Huygens
Thomas Young
as radio waves

Answer:-8

Explanation:

edmentum

The solution for the given linear equation can be solved by simplifying the equation. The value of x is obtained as - 8.

Linear equations are the equations which shows a linearity with a second expression which is similar to the first but having different mathematical operations and signs.

By solving linear equations we can solve for the unknown value of x. The value of x can be obtained by taking the whole expression to one side and which is having a constant value.

Given, - 3x + 7x - 8 = 34 + 9x -2.

          = 4x - 8 = 32 + 9x

          = 4x - 8 - 9x = 32

             -5x = 40

              x = - 40/5 = - 8.

Hence, solution of the given equation is  -8.

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Answer:

The cell potential is 0.0296V

Explanation:

Please see the attachment below

Answer:

its already in scientific notation form however its ordinary or real form is -0.005682

Explanation:

scientific notation

when a number is expressed with some power of 10 multiplied by a number between 1 to 10 is called scientific notation

Answer:

its C

Explanation:

Cloud electron is a part of an atom is mostly empty space. Hence option D is correct.

It is the smallest unit of matter that possess the properties of the chemical element. It can’t be an independently, they form ions and molecules they both are combine and form large numbers of matters.

Every solid, liquid, gas, and plasma are composed of neutral or ionized atoms.

Atoms are basically three types: Neutrons, protons and electrons. In atoms there are two regions:

Electron clouds: Most of the volume of an atom.

The region where the electrons can be found (mostly empty space). Cloud electron is a part of an atom is mostly empty space. Hence option D is correct.

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Answer:   2) see below

                 3) 2AgCl → 2Ag + Cl₂

Explanation:

2)

Step 1: Crushing & Grinding   CuFeS₂(s)→  CuFeS₂(s)

Step 2: Froth Flotation           CuFeS₂(s)---->  CuFeS₂ (l)

Step 3: Roasting   2CuFeS₂(l) + 3O₂(g) → 2FeO(s) + 2CuS(s) + 2SO₂(g)

Step 4: Converting matte to blister Cu₂S(l) + O₂(g) → 2Cu(l) + SO₂(g)

Step 5: Anode Casting           Cu(l) → Cu(s)

Step 6: Electrolytic Refining   Cu(s) → Cu(s)

            Anode: Cu(s) → Cu₂ + (aq) + 2e-

                     Cathode: Cu2 + (aq) + 2e- → Cu(s)

see diagram below for illustration of steps

3) When silver chloride (solid) is exposed to sunlight, it decomposes into silver (solid) and chlorine (gas).

The equation is written as:  [tex]2AgCl_{(s)}\xrightarrow{\text{sunlight}}}2Ag_{(s)}+Cl_{2(g)}[/tex]

Answer:

Explanation:

for me, but the best. . the first one. . the first one

Answer:

1milliliter=1cubic centimeter

Answer:

volume and density I'm pretty sure

Answer:

True

Explanation:

Most rivers begins life as a tiny stream running down a mountain slope..... small streams meet and join together, growing larger and larger until the flow can be called river. On its way down, the water shapes the landscape by wearing away rocks and carving out a network of valley.

Answer:

9 electrons.

Explanation:

Number of electrons = number of protons

= 9.

Answer:

C10H22

sorry if im wrong

Answer:

To monitor Pressure increase

Explanation:

the more pressure, the higher the production of the gas, which can be recorded, more pressure meaning higher production. Then vary the temperature.

Answer: Logical, Because it allows the student to catch any invisible gases given off. I hope this helps

Explanation:

Answer:101.105⁰c

Explanation:

Answer:

[See Below]

Explanation:

I mean they say all those things , but if it has to do with just the device I'm guessing it'd most likely be They can sense the presence of spiritual energy  since they claim it's the device they are using to tell them if there is something there they can't see.

Answer:

The Awnser is C (pls give me brainliest if this awnser is correct)

Explanation:

Answer:

liquid

Explanation:

thank me

Answer:

i think opinion cause you could be saying in my opinion, scrambled eggs are better for breakfast than cereal.

Answer:

a) 74842.7 g

b) 0.1201 m

Explanation:

1 pound is 453.592 g  

165 pound = 74842.7 g

12.01 / 100 = 0.1201 m

water

explanation:

water consists one oxygen atoms and two hidrogen of atom.

compound: have two or more atom

Hope this helps :)

I believe it’s physical property because there is no chemical reaction to an unlit match‍♀️

Answer: P1V1 + P2V2

Explanation:

Answer:

The answer will be B

Explanation:

Answer:

B.the neutron in the nucleus

Explanation:

Answer:

History of the Law of the Conservation of Mass

The ancient Greeks first proposed the idea that the total amount of matter in the universe is constant.This law states that, despite chemical reactions or physical transformations, mass is conserved that is, it cannot be created or destroyed within an isolated system.

Explanation:

Answer:

1 and a

2 and b

3 and c

4 and d

Explanation:

+ = gained

- = lost

when there is a two it has two electrons

I also had a high school friend check my accuracy

HOPE THIS HELPS!!!! :)

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Answer:

The answer above is wrong. Under explanation it is correct.

Explanation:

1.  c

2. b

3. a

4. d

I took my test and got it wrong using above answers, but these are correct! ; /

Answer:

I would consider the practice of "ghost hunting” to be closer to pseudoscience than science because the work described in the article mostly lacks process and is subjective. In the article, people looking for evidence of ghosts do not set up controlled experiments with repeated trials. Instead, they take several measurements and make guesses about what might be causing the results they see. The people in the article also base conclusions on observations such as feeling a "heavy presence” or a "sudden chill.” These are subjective observations.

Explanation:

Answer:I would consider the practice of "ghost hunting” to be closer to pseudoscience than science because the work described in the article mostly lacks process and is subjective. In the article, people looking for evidence of ghosts do not set up controlled experiments with repeated trials. Instead, they take several measurements and make guesses about what might be causing the results they see. The people in the article also base conclusions on observations such as feeling a "heavy presence” or a "sudden chill.” These are subjective observations.

Explanation:

Answer:

When preforming the experiment the red dye will separate if it had other dyes included in it

Explanation:

Paper chromatography is a good way of separating coloured substances mixed together in a solution. During chromatography, the solvent soaks up the paper past the spot of the mixture and the different substances move upwards too. They move different distances depending on what kind of substance they are, what the solvent is and how far the solvent itself travels.

Answer:

All of the above

Explanation:

This is correct

Answer:

Explanation: It is B. all above

Answer:

sodium ion has smaller radius than a atom.

Explanation: