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Answer:

Innate, or nonspecific, immunity is the defense system with which you were born. It protects you against all antigens. Innate immunity involves barriers that keep harmful materials from entering your body.

Answer:

E

Explanation:

The problem with choices A B C D is that the molecular balance numbers are incorrect. E is the only one correctly balanced. For example in A is balanced as

3Mg + 2H2O ===> 3Mg0 + 2H2

The Mg's are correctly balanced.

So are the hydrogens. But take a look at the 0xygens. There are 2 on the left and 3 on the right. The equation is not balanced correctly. B and C have the same problem. One of elements is not balanced correctly.

Answer:

A + and spontqneous

Explanation:

i hope this helps.

The enthalpy change of condensation of water is negative and here the entropy change also negative and the process is nonspontaneous.

The enthalpy change of a reaction or a phase change is the change in heat energy absorbed or evolved. The change in enthalpy is dependant on the nature of process as well on temperature of the system.

Condensation of water is the change of its liquid state into solid state. Thus water freezes to form ice. In this process, the system is getting more ordered structure in the solid state and thus, the entropy of the system decreases means the entropy change is negative.

Now, when converting liquid to solid heat is released by the system. Hence, enthalpy change, delta H is negative. A process becomes spontaneous only f its Gibbs energy is negative.

Here we have both negative entropy and enthalpy so make Gibbs energy negative higher temperature is needed.

Condensation of a substances is taking place at very low temperature and thus gibbs energy become positive. Therefore the process is  nonspontaneous.

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Answer:

Iron will disolve in acid. The acid eats away at the iron. :)

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Answer:

is this a full question ????

Explanation:

The boundary of a watershed is defined by the highest elevations surrounding a lake or river segment. A drop of water falling outside of the boundary will drain to another watershed.

Answer:

The boundary of a watershed is defined by the highest elevations surrounding a lake or river segment. A drop of water falling outside of the boundary will drain to another watershed.

Explanation:

You can't usually just use a single spectrum line to confirm the identity of an element because there are cases that the emission line id not clearly defined. When the emission line is very weak compared to surrounding noise, in which case the more datapoints you have to build up confidence for the existence of a particular emission spectra, the better.

Answer:

The correct answer is B. Give me Brainliest

Answer:

net force depends upon the object and also the mass of that object

Answer:The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object.

Explanation:

Answer:

B

Explanation:

The particles move freely

I think the answer will be:

Sir isaac newton.

The statement that explain the important of experiment with speed and time is

Repeated experiments with airplanes and how their velocity changes as a result of environmental conditions like wind can help scientists develop a model for flight paths and launch times to minimize fuel usage.

An experiment is a scientific procedure or technique carried out in a place to discover or test the validity of something.

Velocity refer to the rate of change of body's position and direction in respect to time.

Speed is the distance travel by an object in respect to time.

Therefore, The statement that explain the important of experiment with speed and time is

Repeated experiments with airplanes and how their velocity changes as a result of environmental conditions like wind can help scientists develop a model for flight paths and launch times to minimize fuel usage.

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Answer:

The pathogen might not be recodnised by the host :)

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The type of carbon fixation stores carbon dioxide in acid form is CAM i.e. crassulacean acid metabolism.

CAM stands for crassulacean acid metabolism in this process photosynsthesis is occured at day time but the exchange of gases takes place at night itself only.

In this carbon fixation process, carbon dioxide is stored in the form of organic acid malic acid and losses carbon dioxide at the night time and by doing this it helps in the storage of water.

Hence option (C) is correct.

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Answer:

CAM

Explanation:

Yes the correct answer is option C, ( CAM)  I just took the test.

Answer:

from producers to consumers

Explanation:

Energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants

Short answer, don't know but i'm sure the answer is up here

Answer:

Fatty acids and glycerol.

Explanation:

I hope this helps! :)
(The process is called lipolysis by the way)

Answer:

1.85 g of hydrogen gas will form!

Explanation:

1. Write the balanced equation.

Zn

+

2HCl

→

ZnCl

2

+

H

2

2. Calculate the moles of

Zn

.

Moles of Zn

=

30.0

g Zn

×

1 mol Zn

65.38

g Zn

=

0.4589 mol Zn

3. Calculate the moles of

H

2

.

Moles of H

2

=

0.4589

mol Zn

×

2 mol H

2

1

mol Zn

=

0.9177 mol H

2

4. Calculate the mass of

H

2

.

Mass of H

2

=

0.9177

mol H

2

×

2.016 g H

2

1

mol H

2

=

1.85 g H

2

Answer:

90.35 × 10²³ atoms

Solution:

1 molecules of H20 contains 3 atoms,.

And we know that one mole of any molecule contains 6.023 × 10²³ atoms from Avogadro's number,

hence 5 moles of H20 will contain = 5× 6.023 × 10²³ × 3 atoms = 90.35 × 10²³ atoms!

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Answer:

zzzzzzzZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ

Answer:

I believe they are electrons, atoms, ions, or molecules.

Explanation:

Is apologize if it is incorrect-

I hope it helps! Have a great day!

Muffin~

Answer:

Units:

electrons

ions

atoms

molecules

Explanation:

I hope it helps!
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<3

Answer:

C

Explanation:

Answer C    Full moon occurs approx 2weeks after new moon

To prepare 0.250 M solution, the 0.0667 mol of KCl should be diluted up to 266.8mL

From the question,

We are to determine to what volume the KCl should be diluted, in order to prepare 0.250 M solution

From the formula,

Numer of  moles = Concentration × Volume

Then, we can write that

[tex]Volume= \frac{Number\ of\ moles}{Concentration }[/tex]

From the given information,

Number of moles = 0.0667 mole

Concentration = 0.250 M

Then,

[tex]Volume = \frac{0.0667}{0.250}[/tex]

Volume = 0.2668 L

Volume = 266.8 mL

Hence, to prepare 0.250 M solution, the 0.0667 mol of KCl should be diluted up to 266.8mL

Learn more on Stoichiometry here: https://brainly.com/question/16632398

Answer:

99•g

Explanation:

Well, ONE mole of water has a mass of 18.01⋅g⋅mol−1. and 5.5⋅mol has a mass of approx. 99⋅g.

A carbocation is a carbon atom that bears a positive charge. The most stable carbocation here must be a secondary carbocation .

A carbocation is a carbon atom that bears a positive charge. These species pften pccur as intermediates in a chemical reaction and can be detercted spectroscopically.

The most stable carbocation here must be a secondary carbocation hence, the structural formula for the more stable carbocation intermediate formed in the reaction is shown in the image attached.

Learn more about carbocation:https://brainly.com/question/2919483