The diagram below shows the structures of a plant cell. What is structure 1, and how does it help sustain life? A. Structure 1 is a vacuole, which temporarily stores wastes. B. Structure 1 is the cell wall, which provides structural support for the cell. C. Structure 1 is the nucleus, which is the control center of the cell. D. Structure 1 is a chloroplast, which is the site of photosynthesis.

The ionization potential of Ba(OH)2 was found to be 8±1 eV, with a value of 6±1 eV for the monohydroxide.

After boiling the mixture of iron salt, water

iron, and salt it will remain and water will be evaporated

Answer:

A polar covalent bond will have the electrons shifted more towards one side or the other; a nonpolar bond will have evenly distributed electrons.

Explanation:

  The basis for a polar bond is that the electrons are shared unevenly. Some elements are more electronegative than others; that is, they pull harder on the electrons and tend to have more electrons around them. Following the periodic trends, Fluorine is the most electronegative element, so it will likely have the most dense area of electrons in a molecule. All this means that in a polar molecule, the electrons will be spread out unevenly along the lengths of the bonds as some elements will pull on them more than others will.

  Nonpolar molecules do not have to worry about differences in electronegativity, and so the electron density will be pretty evenly distributed along the entire molecule.

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Answer:

No, a hypothesis can only become a fact if the outcome happens over and over. A theory means that it could be true but the outcome can also be false.

Explanation:

Answer:

Increasing substrate concentration also increases the rate of reaction to a certain point. Once all of the enzymes have bound, any substrate increase will have no effect on the rate of reaction, as the available enzymes will be saturated and working at their maximum rate.

Answer:

depressants

Explanation:

these are new to the recreational area of drugs

Answer:

Water is the answer

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Answer:

C. guides you through the steps to complete a complex task.

Explanation:

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Answer:

a-b and e-f

Explanation:

At these intervals, there is no change in distance covered as time continues.

Ivan Pavlov is most known for demonstrating conditioned lreflex in dogs.

Conditioned reflex is a reflex action which has been conditioned to occur even without the stimulus which produces the reflex.

Ivan Pavlov is known to demonstrate conditioned reflex in dogs.

In his experiment, he trained dogs to salivate at the sound of a bell even if food which is the stimulus that produces salvation was not present.

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Answer:

A conditioned reflex is a reflex action that has been trained to occur even when the stimulus that causes the reflex is not present.

Ivan Pavlov is recognized for using dogs to illustrate conditioned reflexes.

He trained dogs to salivate at the sound of a bell even when food, the stimulus that induces salvation, was not present in his experiment.

Explanation:

Answer: C because gases in the atmosphere are less dense

Explanation:

Answer:

[tex]\huge\boxed{\sf Distillation}[/tex]

Explanation:

Since, both of the chemicals are liquids, we can separate it by the process of distillation.

Distillation:

How it works:

Since chloroform has less boiling point, it will evaporate and collected first and benzene will follow it after sometime.

- Apparatus of distillation is in the attached file.

[tex]\rule[225]{225}{2}[/tex]

Answer:

72.72%

Explanation:

Answer:

yeah if enough pressure or force is added

•Why do you feel the force of Earth's gravity?

Answer:

•Earth's gravity comes from all its mass. All its mass makes a combined gravitational pull on all the mass in your body. That's what gives you weight. And if you were on a planet with less mass than Earth, you would weigh less than you do here.

Explanation:

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Answer: not sure on actual answer, but heres a answer on a similar question with just different quantities.

Explanation: just minus the terms i got and u should be okay

Answer:

A water molecule consists of two hydrogen atoms bonded to an oxygen atom, and its overall structure is bent. This is because the oxygen atom, in addition to forming bonds with the hydrogen atoms, also carries two pairs of unshared electrons. All of the electron pairs—shared and unshared—repel each other.

Explanation:

Since a chemical reaction is said to have occured when two or more substances are chemically combined together,  the starting materials must be sample 1 and 2 as shown in optionB.

A chemical reaction is said to have occured when two or more substances are chemically combined together. We must note that a chemical reaction produces new species that contain atoms that were present in the reactants.

Having said this much, considering the image of the product shown, the starting materials must be sample 1 and 2 as shown in optionB.

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The type of inheritance displayed by the illustration is incomplete dominance.

It is a kind of inheritance in which one of the two alleles of a gene exerts incomplete influence on the other allele.

For example, a cross of white and red flower plants yielding a plant with pink flowers. It means that the dominance of the red or pink allele is incomplete.

The same is applicable to a blue fish mating with a yellow fish to produce green offspring. A blend of the two colors occurred.

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Answer:

Percent composition = mass of element in the compound/mass of compound × 100

In this case, the mass of the compound is its molar mass.

Percent Composition of N in CO(NH2)2 (urea)

Molar mass CO(NH2)2 = 60.056 g/mol

Mass of N = 2×14.007 g/mol = 28.014 g/mol

%N: 28.014 g/mol/60.056 g/mol × 100 = 46.646%

Percent Composition of N in NH4NO3 (ammonium nitrate)

Molar mass of NH4NO3 = 80.044g/mol

Mass of N = 2×14.007 = 28.014 g/mol

%N: 28.014 g/mol/80.044 g/mol × 100 = 34.998%

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Answer:

breathing

Explanation:

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Answer:

SEE BELOW

Explanation:

The act or process of breathing i.e the inhaling of oxygen and the exhaling of carbon dioxide. The process in which cells use oxygen to break down sugar and obtain energy which is used for various purposes.

Answer:

Alchemy is based on mystic view of reality whereas chemistry is based on experiments, observations and facts.

Answer:

1.  Splitting

2. Combine

Explanation:

Explanation:

magnet will attract iron.

salt and water is left behind

The name of the compound with the chemical formula Br2F8 is dibromo octafluorine.

The chemical formula of a compound shows the type and proportion of each element that makes up the chemical compound.

According to this question, a compound with chemical formula Br2F8 is given. The compound consists of the following:

Therefore, the name of the compound with the chemical formula Br2F8 is dibromo octafluorine.

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Answer:

28.9

Explanation:

4.5+24.4

= 28.9

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