9 x 1025 m
How many significant figures are in
this measurement?

Answer:

liquid

Explanation:

thank me

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:

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:  The volume is 37.0 cm3Au

Explanation:

Answer:

4.825 mL

Explanation:

19.3 g/mL * 1/4.0 g = 4.825 mL

Answer:

Yes

Explanation:

Coca Cola is a homogenous mixture, just like sugar, salt, and more. Hope this helps!

Answer: Yes

Explanation: Coca cola is a homogeneous mixture because the syrup and water are mixed evenly throughout the solution. For example, an unopened soda in a bottle has a uniform composition and is a homogeneous mixture. Once you open the bottle, bubbles appear in the liquid. The bubbles from carbonation are gasses, while the majority of the soda is liquid. An opened can of soda is an example of a heterogeneous mixture.

Hope this helps^^

Answer:

For solid salts that are soluble in the sea water, as the sea water temperature rises, the solubility of the salt in the water increases. The accompanying increase in the kinetic energy of solvent water molecules with the increase in the temperature of the seawater results in the increase in the number of solute salt inter-molecular bonds being broken by the energetic solvent molecules resulting in increasing solubility of the solids

However, for gases, the increase in temperature of the sea water results in a decrease in the solubility of all gases. The process is also explainable by the kinetic theory such that a rise in temperature of the gas seawater solution increases the kinetic energy of both the solvent water and the solute gas. The higher energy gases are moving much faster and are then  then able to separate from the less mobile liquid gas combination.

The resulting effects

1) The surface (topmost) hotter portions of the sea have fewer living organisms

2) Fishes that come to the surface frequently gas for air by bringing their head above water

3) Most of the life forms are located deep within the sea

4) Formation of water movement cycles within the ocean and polar water bodies

5) Mechanical nature of the sea compared to fresh water bodies

Explanation:

No, it is not a scientific claim. If a ghost hunter catches a voice on video like ghost hunters do you can either believe it or not. Ghosts are more of a  i believe it you dont have to type of thing becasue they have not been scientifically proven to exist.

Answer:

C. making models

Explanation:

Making models facilitates constructing depictions of complex objects or practices that enable students to practice and understand how things work which can not be observed and measured directly. Model making needs abstract thinking about the tools and material used, spatial thinking, and well-organized idea of the project to create complex objects.

Answer: P1V1 + P2V2

Explanation:

Answer:

i will tell some examples of plasmas they are:

1.lightning

2.solar wind

3.welding arcs

4.stars(including the sun)

5.the earths's ionosphere

Answer: which of the following are examples of plasmas?

Choices: 1. Ice cubes 2. Tails of comets 3. A gas fire 4. The ionosphere 5. A neon sign 6. A flashlight

Explanation:

The Answer: is 2. Tails of comets 4. The ionosphere 5. A neon sign

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.

To find more on linear equations, refer here:

https://brainly.com/question/29739212

#SPJ2

Answer:

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

Answer:

Explanation:

This question is not very clear, however, going by the key words in the question, Archimedes' principle shows a relationship between mass and volume.

Archemedes' principle states that when a body is fully or partially immersed in fluid, it is acted upon by an upward force which is equal to the weight of the fluid displaced by the body.

The volume displaced here can be determined using the formula

Density of liquid = mass displaced ÷ volume

Hence, volume = mass displaced ÷ density of liquid

Answer:83275.50528m/s

Explanation:

Answer:

no

Explanation:Unused chemicals are never returned to their original containers because you will be contaminating the chemical. Dispose of unused chemicals in the proper containers.

Answer:

Computer.

Explanation:

The computer is moving more than the floor, at least, it's moving when people are typing on it.

Answer:

Drug compounding is often regarded as the process of combining, mixing, or altering ingredients to create a medication tailored to the needs of an individual patient.

Answer:

13 grams of Oxygen

Explanation:

Step 1: Find molecular formula of sugar

C₁₂H₂₂O₁₁

Step 2: Convert moles of oxygen present to grams

1 mol O = 16 g O

11 mol O = 176 g O

Step 3: Find molar mass of sugar

C - 12.01 g/mol

H - 1.01 g/mol

O - 16.00 g/mol

12.01(12) + 22(1.01) + 11(16.00) = 342.34 g/mol C₁₂H₂₂O₁₁

Step 4: Set up dimensional analysis

[tex]25 gC_{12}H_{22}O_{11}(\frac{176 gO}{342.34gC_{12}H_{22}O_{11}} )[/tex]

Step 5: Multiply/Divide and cancel out units

Grams of C₁₂H₂₂O₁₁ and grams of C₁₂H₂₂O₁₁ cancel out.

We are left with grams Oxygen

25/342.32 = 0.073031(176) = 12.8535 grams Oxygen

Step 6: Simplify

We only have 2 significant figures in this problem. Thus,

12.8535 = 13 g O

In order to convert the moles of a substance to grams, you will need to multiply the mole value of the substance by its molar mass. More commonly written for this application as: where, is the molar mass of the substance.

Hope this helped

:)

Answer:

bronze - solid

pure water - liquid

tap water - liquid

trail mix - solid

Explanation:

There are 4 classes of matter based on the characteristics of their molecules:

The molecules in solids are tightly packed together and are more or less fixed about a point with very little of no movement. The molecules in liquids are less tightly packed and are able to take the shape of their containers. The molecules in gases are loosely packed and compressible. They can take the shape of containers as well as expand to a container due to their loosely packed molecules.

Plasma molecules neither have shape nor volume but are able to produce both magnetic and electric currents as well as respond to electromagnetic fields.

Hence bronze has all the characteristics of a solid, pure and tap water both have the characteristics of a liquid, while trail mix can be considered a solid.

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

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:

b

...................

Answer:

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Explanation:

ncs njevt hibveynvuirn2uivnwru8cnajoncuiwrnf24nvojwnvojwnfjr2nfln24f8u1elkcjo2joc2rjkf

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:

All of the above

Explanation:

This is correct

Answer:

Explanation:

The density of a substance can be found by using the formula

From the question

mass = 54 g

volume = 20 cm³

Substitute the values into the above formula and solve for the density

That's

We have the final answer as

Hope this helps you

Answer:

If you were to divide any object into small pieces of unit volume, the density would be the mass of each small piece. Everything is made up of molecules, which in turn are made up of atoms. So every object is created from the aggregation of atoms and molecules.

:)