In the photo, what does the green line with the arrow represent?
M

Answer:

David R. Ashbaugh

Explanation:

David R. Ashbaugh is a Canadian police officer known for his extensive research on the friction ridge identification, introducing for the first time the use of the term ridgeology in forensic identification and the ACE-V methodology.

Answer:

Molarity of the solution = 0.08 M

Further explanation

Molarity is a way to express the concentration of the solution

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

Where

M = Molarity

n = Number of moles of solute

V = Volume of solution

0.5 lb=226,796 g

MW silver nitrat - AgNO₃ = 169,87 g/mol

mol AgNO₃ :

Molarity :

Answer:

The wind pushes the sails from behind, causing the boat to move forward.

Answer:

Wind energy obtained by the machine is converted into kinetic energy as it functions and thus enabling the boat to move.

Together, the forces of drag, from the water, and the pressure from the wind against the sail itself push the craft forward. Angling too sharply into the wind causes the forces on the boat to become unbalanced, and moves the boat sideways in the water.

Answer:

D.

The substance will have the same chemical properties.

Explanation:

Physical changes do not alter the chemical composition of a substance, so the chemical properties will not change.

Answer:

88%.

Explanation:

The percentage yield of lead sulfate in this experiment is 88% if 2.53 is divided by 2.85 and multiply by 100. The percentage yield can be calculated when the experimental yield is divided by theoretical yield and then multiply by 100. The percentage yield tells us about the actual yield that is gained in the end of experiment which is lower than theoretical yield.

Answer:

Acidic oxides, or acid anhydride, are oxides that react with water to form an acid, or with a base to form a salt. They are oxides of either nonmetals or of metals in high oxidation states.

Explanation:

Answer:

Sodium chloride is ionically bonded. An electron has transferred from sodium to chlorine. Sodium has an electronegativity of 1.0, and chlorine has an electronegativity of 3.0.

...

The electronegativity difference between sodium and chlorine is 2.23 and the type of bond is ionic bond.

The tendency of an atom in a molecule to attract the shared pair of electrons towards itself is known as electronegativity.

Electronegativity is a kind of measure that tells how strongly atoms attract the bonding electrons to them.

Its symbol is a Greek letter that looks like an (X). It is directly proportional to the atom’s attraction for the electrons.

The compounds which form between the elements having a huge difference in the electronegativity are ionic compounds, and also have ionic bonding.

Electronegativity of Sodium = 0.93

Electronegativity of chlorine = 3.16

Difference = 2.23

The type of bond between them is ionic bond.

Therefore, The electronegativity difference between sodium and chlorine is 2.23 and the type of bond is ionic bond.

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Explanation:

Ocean currents act as conveyer belts of warm and cold water, sending heat toward the polar regions and helping tropical areas cool off, thus influencing both weather and climate.Land areas also absorb some sunlight, and the atmosphere helps to retain heat that would otherwise quickly radiate into space after sunset.The ocean doesn't just store solar radiation; it also helps to distribute heat around the globe. When water molecules are heated, they exchange freely with the air in a process called evaporation. Ocean water is constantly evaporating, increasing the temperature and humidity of the surrounding air to form rain and storms that are then carried by trade winds. In fact, almost all rain that falls on land starts off in the ocean. The tropics are particularly rainy because heat absorption, and thus ocean evaporation, is highest in this area.

Answer:

c

Explanation:

i think if not tell me ok

Answer:

The steps in order are;

1. Obtain a 50-mL volumetric flask

2. Add approximately 10 mL of deionized water to the empty flask

3. Use a pipet to add the appropriate volume of stock solution to the flask

4. Cap the flask and invert several times to mix

5. Fill the volumetric flask with deionized water until the meniscus touches the mark

6. Swirl the flask to mix the contents

The volume of the acetic acid to be added to the solution is 15 mL

Explanation:

The given steps are;

4. Cap the flask and invert several times to mix

5. Fill the volumetric flask with deionized water until the meniscus touches the mark

6. Swirl the flask to mix the contents

1. Obtain a 50-mL volumetric flask

3. Use a pipet to add the appropriate volume of stock solution to the flask

2. Add approximately 10 mL of deionized water to the empty flask

The given parameters are;

The volume of the volumetric flask = 50-mL

The concentration of the final solution of acetic acid = 0.6 mg/L

The concentration of the stock solution = 2.0 mg/L

Let 'x' represent the volume of the stock solution added, we have;

2.0 mg/L·x + (50 - x)×0 = 0.6 mg/L × 50-mL

x = 0.6 mg/L × 50-mL/(2.0 mg/L) = 15 mL

The volume of the stock solution to be added, x = 15 mL

Answer:

Cluster HR Diagrams: Since all the stars in a cluster formed at the same time, they are all the same age. A very young cluster will have a HR diagram with a cluster of T-Tauri stars evolving towards the main sequence. ... Each star is plotted by its color and magnitude on the HR diagram.

Answer:

climate:the weather conditions prevailing in an area in general or over a long period.

2 main factors: temperature and precipitation

Explanation:

Base isolation is a technique used by engineers to help prevent damage to buildings by earthquakes. The main structure of the building is separate from the base and sits on a bed of springs.

Base isolation is a technique developed to prevent or minimise damage to buildings during an earthquake.

A base isolation system is a method of seismic protection where the structure (superstructure) is separated from the base (foundation or substructure). By separating the structure from its base the amount of energy that is transferred to the superstructure during an earthquake is reduced significantly.

Hence, option D is correct.

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Answer:

It’s the second option ; 2,1,3,2

Explanation:

Answer:

D. the atomic mass increases from left to right

Explanation:

Answer:

physical

Explanation:

The zinc (which was already silver) coated the penny. The NaOH dissolved the zinc. (that was what made the water murky) And small pieces of zinc adhered to the penny (coated) It was a physical change because no NEW color was created.

V1 = 30 mL

P1 = 760 torr

P2 = 1520 torr

V2 = ?

applying Boyle's Law

P1*V1 = P2*V2

760 torr * 30 mL = 1520 torr * V2

V2 = 760 torr * 30 mL / 1520 torr

( C ) is correct

Answer:

3:1 or 3/1

Explanation:

Look at the coefficients then set up ratio. Simplify to the base numbers and you get 3/1 or 3:1. Thus, for every 3 MgO you produce 1 Mg3N2

Answer:

The trachea, commonly known as the windpipe, is a tube about 4 inches long and less than an inch in diameter in most people. The trachea begins just under the larynx (voice box) and runs down behind the breastbone (sternum).

Explanation:

Answer:

B. They don't have enough energy to overcome the attractions between them.

Answer:They don't have enough energy to overcome the attractions

between them.

Explanation:

A. They have no motion and cannot even vibrate in place.

B. They don't have enough energy to overcome the attractions

between them.

C. They bounce off the walls of their container and back into place.

D. They move independently of one another.

Answer:

use research.

Explanation:

Answer:

The answer is 2 all you do is divide the 6.02 and 3.01 and you get 2

Answer:

Depends on what you're doing, you could be running and it goes higher, temperature isn't too much of a difference.

Explanation:

Answer:

it dies

Explanation:cause its too cold

Answer:

At the top of the swing

Explanation:

Answer:

The answer is "3.57 and 0.07".

Explanation:

Using the slop formula:

[tex]=\frac{n_2-n_1}{n_2-n_1}\\\\ =\frac{0.714-0.357}{0.20-0.10} \\\\ = ABSORPTIVITY, \ \ a=3.57 \\\\A= a\times b \times c[/tex]

Given:

[tex]A=0.250[/tex]

length path [tex]b=1[/tex]  

from calibration it is found that

[tex]a=3.57\\\\consentation \ c=\frac{A}{a\times b} \\\\C=\frac{0.250}{3.57\times 1}[/tex]

   [tex]=0.07 \ M[/tex]

Answer:

high B or a low A:) Good Luck

Explanation:

Answer:

- there are homologous chromosomes in the middle of the cell (metaphase I)

- there are sister chromatids in the middle of the cell (metaphase II).

Explanation:

Answer:

V= 33.6L

Explanation:

The reaction between hydrogen and nitrogen is

3H2(g) + N2(g) + 2NH3(g)