help please!!!!!!!!!!!!!!!!!!!!!!!!

Answer:

NaOH (a strong base)

Ammonia ( weak base )

Answer: I don't understand the question.

Answer: The completed sentences of the Question are as follows:

The Cell-wall supports and protects a plant cell. It gives the cell its rigid structure.

Turgor pressure helps the plant stand upright. It is caused by the movement of water into a plant cell.

Plants are composed of cells that contain nuclei, which make them eukaryotic cells.

Plants make their own food using sunlight, which makes them autotrophs.

Explanation:

The cell wall is a rigid covering that protects the cell. It also provides structural support and gives shape to the cell.

Turgor pressure in plants is the force exerted by stored water on a cell wall. Turgor pressure is critical to the plant’s essential processes as it stiffens and rigidifies the plant cell and helps it stay upright.

Plant and animal cells are eukaryotic which means that they have nuclei. Eukaryotic cells are found in both plants and animals.

Plants are autotrophs, which means they produce their own food. The process by which they produce their own food by transforming water, sunlight, and carbon dioxide into oxygen and simple sugars is called Photosynthesis.

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Answer:

"Yes," a moving skateboard has energy.

When the skater seems to be in motion or throughout a movement, the potential energy converts itself into the kinetic form of energy, and then it becomes potential energy again.

Furthermore, somewhere after every movement, the same skateboarder was around a similar height, — in other words thus every time it is equally powerful.

The response is thus the right one.

Explanation:

Answer: Hotter things have more heat energy than colder things. That's because the atoms or molecules move around faster in hot things (red, right) than they do in cold things (blue, left). ... The more heat you supply, the faster the molecules move and the further apart they get.

Explanation: I had a test on this a while ago and this was correct.

Answer: Hotter things have more heat, creating energy for that item/thing., and a hotter item/thing., has more heat than a cold(er) item/thing.

Explanation:

Molecular nitrogen (N2) is a chemical element whose structure is composed of

two nitrogen atoms which are tightly bound together

An element is a substance which cannot be split into simpler units by an ordinary chemical process.

Below are some examples of elements:

So therefore, molecular nitrogen (N2) is a chemical element whose structure is composed of two nitrogen atoms which are tightly bound together

Complete question:

What is the structure of the chemical element nitrogen?

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Answer: the answer is b or c

Explanation:

I took it

answer:

The first in the row is correct

Answer: its 5ft tall and 12 inches

Explanation:

Answer:

All of the above

Explanation:

I believe all three are true. They see how the organism is similar to other organisms. They see if the organism has the characteristics of an animal or plant. They look at what makes the organism unique.

The litmus paper shows red colour for acidic substances and blue colour for basic substances. Thus a red litmus paper will turn blue if it is dipped in an alkaline solution. Soap is  alkaline and given blue color to litmus.

pH of a substance is its measure of concentration of H+ ions in it. It is mathematically negative logarithm of H+ ion concentration. Thus, pH measures how much acidic or basic the solution is.

A pH of of 7 is neutral having no acidity or basicity. A pH less than 7 is acidic and pH greater than 7 is basic in nature. Vinegar is acetic acid and it shows less pH . Lemon juice also acidic since it contain citric acid whereas, soap is basic.

A litmus paper is used to identify whether a substance is acidic or basic. It shows red color for acidic solutions and blue for basic solutions. If the red litmus paper is dipped in acidic one, it shows no colour change if it is dipped in basic solution then it turns to blue.

Soap is highly alkaline and it changes red litmus paper to blue.

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Answer:

1. unless you live right around the block, distance from home to school should be in kilometers.

2. centimeters

3. millimeters

4. meters (the average is about 2 meters)

Answer:

A

Explanation:

Food is digested in the stomach for several hours. During this time, a stomach enzyme called pepsin breaks down most of the protein in the food. The pancreas and gland cells of the small intestine secrete digestive enzymes that chemically break down complex food molecules into simpler ones.

Answer:

A

Explanation:

Answer:

in disodium phosphate = 4 oxygen atoms

in phosphoric acid = 1 oxygen atom

Answer: There are 3 more oxygen atoms in Na2HPO4H than 2H3PO

Explanation:

There are 4 oxygen atoms in Na2HPO4H and 1 in 2H3PO. You subtract 4 - 1 =3

Answer: The answer to your question is B,C,D.

Answer: i think A, B, D?

Explanation:

Answer: A food chain follows one path of energy and materials between species. A food web is more complex and is a whole system of connected food chains. In a food web, organisms are placed into different trophic levels. Trophic levels include different categories of organisms such as producers, consumers, and decomposers.

HERE IS THE ANSWER NOT THE LINK

HOPE THIS HELPS

Answer: (Q1) B.      (Q2)  D.    (Q3) B. I believe   (Q4) C.

Explanation: (Q3) B the medulla isn't playing a physical part in digestion as much as it controls the process this is a educated guess  

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

Answer:

I would just find a measuring cup and do it that way it's the easiest way

Answer

The thermal energy of the molecule will increase.

Explanation:

Increasing the speed at which the particles are moving cause atoms and molecules to move faster and collide with each other. This increases the thermal energy.

Carbon and Hydrogen.

Answer:

Mostly decaying organisms are needed to present in marine mud to form fossil fuels.

Explanation: When organisms and plants died and sank to the bottom of swamps and oceans, brown soil-like materials called peat are formed. Over millions of years, the peat became covered with sand, clay and other minerals and the peat is converted into layers of sedimentary rocks. After a long time, different type of fossil fuels are formed.

Answer:

C

Explanation:

Flourine has

9 protons

9 electrons

10 neutrons

this makes the atomic number 9 and the atomic weight 19.

hope it helps

Answer:

1. Delete lion, bison, reindeer, and giraffe

2. Delete cactus, oak, evergreen,

Explanation:

1. Lions live in the African savanna, bison live in open fields with lots of grass, reindeer live in Antarctica and other very cold places, and giraffes also live in the areas of the African savanna where there are trees.

2. Cacti live in the desert, oaks and evergreens live in open grassy areas.

Hope this helps

Beetles are insects that belong to the superorder Endopterygota's Coleoptera order (/koliptr/). They can be distinguished from most other insects by the fact that their front pair of wings have solidified into wing-cases, or elytra.

Beetles are the most common type of insect.  Beetles are everywhere.  But beetles can be confused with other kinds of insects, especially some true bugs. Beetles differ from all other winged insects by having the first pair of wings hardened and thickened.

Some real bugs (Order Hemiptera) have wings that resemble beetles in some ways. However, true bug wings are only partially thickened and stiffened. True insect wings are translucent on the outside.  The mouth parts of the two groups can also be used to distinguish them.

Because the bugs with body color A are able to blend into the habitat/trees better, which makes it harder for the birds to see.

There is one further difficulty with identifying beetles. Beetles go through a significantly different-looking immature (or larval) stage before emerging as winged adults.

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Answer:

1:1 ratio

Explanation:

The concentration of H + ions at pH 6. The concentration of H + can be deduced by the formula pH = - log H + ==> H + = 10 ^ (- pH) ...

Concentration of -OH at pH 6. The concentration of -OH can be calculated from pOH: pOH = 14 - pH = 14 - 6 = 8. ...

Calculation of the ratio H + / -OH:

Answer:

D

Explanation:

DDDDD

When we rewrite the given in a simpler unit we have 7.9 ms-1.

By looking at the units of the quantities involved, dimensional analysis is a technique for determining whether a physical equation or formula is right. The essential tenet of dimensional analysis is that the quantities being multiplied or divided in the equation must have units that are equal to the units of the final result.

We know that we have to apply the principles that apply to dimensional analysis in the question and we have that;

m^2.s/m.s^2

= ms-1

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Answer:

A.weather balloon; electroscope

Answer: C; Carbon

Explanation: The model is showing it has 6 electrons, 6 protons, and 6 neutrons. Therefore the element, carbon.

Answer:

Carbon

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