Sort the images based on whether there’s a force of attraction or repulsion between the magnets shown.

Answer: Static electricity will help in seed dispersal in cone bearing seeds.

Explanation:

Static electricity is the stationary electric charge produced by the friction. The static electricity can be produced by the turbulence or air currents in the storm clouds. This is responsible for the cause of lightening phenomena.

The cone bearing seeds exhibit cones that are hard and woody in nature.  The static electricity due to the effect of lightening generate electrical shock which breaks open the cone and disperse the seeds. Thus the static electricity is important for seed dispersal in cone bearing trees.

Answer:

water

Acidity and basicity are usually determined in a solvent. The strongest acid in the solvent is always the conjugate acid of the solvent and the strongest base is the conjugate base of the solvent. So, in water, the strongest acid is H3O+ and the strongest base is OH- (conjugate base of water).

Answer:

Equivalence point

Explanation:

In most cases, this point has a pH value of 7, but can vary

Answer:

The answer to this question is the equivalence point which has a pH of 7.  It is neither acidic or basic.  Therefore, it is an equivalence point.

Answer:

The density of tube A is greater then the density of tube B having more mass inside of the smaller area.

Explanation:

Answer:

A is denser.

Explanation:

Answer:

number3

Explanation:

Answer:

direct sunlight striking earth

Explanation:

The seasons are caused by Earth's axis of rotation. The poles are farther away from the direct beam of sunlight, so they are normally much colder than the equator.

When a part of the globe is in direct sunlight, it gets hotter, logically, and we call that season summer.

Answer:

A) 0.045 mol/L

Answer: A chemical reaction is a process in which some substances change into different substances. Substances that start a chemical reaction are called reactants. Substances that are produced in the reaction are called products. Reactants and products can be elements or compounds.

Answer:

Humus

Explanation:

D

Humus gives the soil its high fertility. Therefore, the correct option is option D among all the given options.

The living, porous media that has grown in the top layer of the Earth's crust is known as soil. As a source of nutrients and water, a filter for harmful wastes, a site for their breakdown, and a participant for the cycle of carbon and various other elements throughout the planet's ecosystem, soil is one of the main substrates of life on Earth.

It has changed as a result of weathering processes influenced by geographical, geologic, biological, and climatic factors. A practical understanding of soils as well as their management has also developed out of need since the development of crops and forests in the eighth millennium BCE. Humus gives the soil its high fertility.

Therefore, the correct option is option D.

To know more about soil, here:

https://brainly.com/question/27588666

#SPJ2

Considering the definition of pH, the pH is the last option, 4.77.

In firts place, you need to know that pH is a numerical scale used to specify the acidity or alkalinity of a solution. The pH is related to hydrogen ions, since it indicates the amount of these ions present in a solution or substance.

Mathematically, pH is defined as the opposite of the base 10 logarithm or the negative logarithm of the activity of hydrogen ions, that is, the concentration of hydrogen ions:

pH= -log [H⁺]

The pH scale varies from 0 to 14, being acidic solutions with a pH lower than 7 and basic those with a pH greater than 7, while the pH value 7 corresponds to neutral substances.

In this case, being [H+]=1.7×10⁻⁵ M, you can replace this value in the definition of pH:

pH= -log (1.7×10⁻⁵ M)

Solving:

pH=4.77

Then, the pH is 4.77.

Learn more: brainly.com/question/3992824?referrer=searchResults

Answer:

4 moles

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

Answer:

The number of moles of B that will completely react with;

8 moles of A is 12 moles of B

9 moles of A is 13.5 moles of B

3 moles of A is 4.5 moles of B

10 moles of A is 15 moles of B

Explanation:

From the reaction, we have the mole ratio of the reactants is 2 moles of A combines with 3 moles of B to form 3 moles of C

Therefore, one mole of A which is 2 moles/2 will combine with 3/2 moles of B

Hence 8 moles of A will combine with 8×3/2 or 12 moles of B

9 moles of A will combine with 9×3/2 or 13.5 moles of B

3 moles of A will combine with 3×3/2 or 4.5 moles of B

10 moles of A will combine with 10×3/2 or 15 moles of B

The number of moles of B reacted in each case is obtained by stoichiometry.

The representation of a chemical process on paper is known as a chemical reaction equation. It must consist of a reactant side and a product side. The reactants combine to yield the product.

Given the reaction; 2A + 3B → 3C, we can see that the mole ratio of the reactants is 2 : 3. Hence;

2 moles of A reacts with 3 moles of B

8 moles of A reacts with  8 moles × 3 moles/2 moles

= 12 moles B

2 moles of A reacts with 3 moles of B

9 mol of A reacts with 9 mol × 3 moles/2 moles

= 13.5 moles of B

2 moles of A reacts with 3 moles of B

3 mol of A reacts with  3 mol × 3 moles/2 moles

= 4.5 moles of B

2 moles of A reacts with 3 moles of B

10 mol of A reacts with 10 mol × 3 moles/2 moles

= 15 moles of B

Learn more: https://brainly.com/question/5624100

Answer:

From primary consumer to secondary consumer; that is the answer!

Answer: "From primary consumer to secondary consumer"

Explanation:

I took the test (good luck)

Answer:

A) 29.9g

Explanation:

first find the weight of 1 staple.

then multiply with 225

Answer: A

Explanation: 1.33/10 = .133

.133* 225 = 29.925 which is about 29.9 grams

Answer:a

Explanation:

Answer:

0.0648 mols

Explanation:

Answer:

-2

Explanation:

eACH ELEMENT HAS AN SPECIFIC VALENCE, FOR EXAMPLE, CARBON (+2),+4 IN THE CASE OF OXYGEN IS -2

Answer:

The answer is D.

Explanation:

Answer:

D. All the living and nonliving things in a place or region that interact

with each other

Answer:

its D

Explanation:

Answer:

This is to make sure that the experiment is precise as outside disturbance could cause false outcome

Answer:

Periods on the periodic table of elements

Explanation:

In the periodic table of elements, there are seven horizontal rows of elements called periods. The vertical columns of elements are called groups, or families. (See also The Periodic Table: Metals, Nonmetals, and Metalloids.) In each period (horizontal row), the atomic numbers increase from left to right.

Answer:

A solution of acetic acid that is 60.0% HC₂H₃O₂ (by mass) indicates that it contains 60.0 g of acetic acid and 100.0 g of water.

Explanation:

A percentage is a way of expressing an amount as a fraction of 100. The mass percentage corresponds to physical units of the solutions and they allow to establish more precisely the concentration of the solutions and express them in terms of percentages.

Mass percentage indicates the amount in grams of solute per 100 grams of solution.

So a solution of acetic acid that is 60.0% HC₂H₃O₂ (by mass) indicates that it contains 60.0 g of acetic acid and 100.0 g of water.

Answer:

Heavy plates

Explanation:

Took the test, sorry.

Ideal gas law is valid only for ideal gas not for vanderwaal gas. Charles' gas law is used here. Therefore the new pressure of  the given gas is 5.63 atm.

Ideal gas equation is the mathematical expression that relates pressure volume and temperature. Vanderwaal gas acts as ideal gas at low pressure and high temperature. There is no forces of attraction between the particles of an ideal gas.

Mathematically the relation between Pressure, volume and temperature can be given as

PV=nRT

where,

P = pressure of gas

V= volume of gas

n =number of moles of gas

T =temperature of gas

R = Gas constant = 0.0821 L.atm/K.mol

At constant volume

P₁/T₁ = P₂/T₂

32.0 psi ÷298 K =P2÷348 K

P2 = 7.55÷1.34 = 5.63 atm

Therefore the new pressure of the given gas is  5.63 atm.

To learn more about ideal gas equation, here:

https://brainly.com/question/14826347

#SPJ5

Answer:

A

Explanation:

Since acceleration is the change of velocity and f=ma, the change in velocity is dependent on force and mass. Since the force on all of the objects is the same, the one with the least mass will accelerate the most. Object A is the least massive at a mass of 0.5kg, meaning that its velocity will change the most. Hope this helps!

The movement of material from a more crowded area to a less crowded area is called diffusion, which achieves equilibrium when the concentration of molecules is equal in both areas.

The movement of material from a more crowded area to a less crowded area is known as diffusion. This natural process involves molecules moving from an area of higher concentration to an area of lower concentration. The process continues until the concentration of molecules is equal in both areas, achieving a state called equilibrium.

Diffusion is also described as the movement of solutes "down the concentration gradient." Osmosis is a specific type of diffusion pertaining to the movement of water across a semi-permeable membrane due to a concentration difference. However, since the question does not specify water or a semi-permeable membrane, the best answer would be option A, which is Diffusion. Respiration and photosynthesis, on the other hand, are biological processes involved in energy conversion and do not describe the movement of materials from a more crowded to a less crowded area.

Answer:

The reactants are Phosphorus and Oxygen .

Explanation:

In the equation above, P represents Phosphorus and O represents Oxygen or Oxygen gas.

Answer:

The answer above is correct - the right option is A.

Explanation:

Hope this helped confirm!

Answer:

I'm pretty sure it's A but I am not 100 present

hope this helps ❤️