Which factor is a biotic factor of an ecosystem?

Answer:

0.558 M.

Explanation:

Hello!

In this case, when computing the resulting concentration of the solution after a mixing process, we first need to compute the moles provided by each solution:

[tex]n_{NaCl}^{sol1}=0.284L*0.850mol/L=0.2414mol\\\\n_{NaCl}^{sol2}=0.467L*0.380mol/L=0.1775mol[/tex]

So the total number of moles are:

[tex]n_T=0.2414mol+0.1775mol=0.4189mol[/tex]

And the total volume which is additive:

[tex]V_T=0.284L+0.467L=0.751L[/tex]

Therefore, the resulting molarity of sodium chloride is:

[tex]M=\frac{0.4189mol}{0.751L}\\\\M=0.558M[/tex]

Best regards!

Answer: c

Explanation: Trust me

Answer:

C

Explanation:

EDG

Answer:

C Li + ZnCO3 Right arrow.

Explanation:

I just took the test and i got this right.

To see which reaction will happen we need to see the reactivity series of metals which shows the order of reactivity of metals, which displaces which. So option c is the correct option

Displacement reaction is a reaction in which one atom replaces other atom from a molecule on the basis of reactivity strength. It is done by following reactivity series which states the increase order of reactivity of metals.

So in C option Li is a more reactive metal than Zn so Li can displace Zn from the Zinc carbonate Whereas in other option Platinum, Copper, Manganese are less reactive than Iron in Ferric chloride, Potassium in Potassium nitrate and calcium in  Calcium oxide according to reactivity series. So In only option c, reaction will go in forward direction.

To learn more about displacement reaction, here:

https://brainly.com/question/20690229

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Answer: 80 moles

Explanation:

W at mass 183.8 = 6.02214076x10^23 = 1 mole

4.8x10^25 atoms = (4.8*10^2/6.02214076) = 80 moles

Answer:

C

Explanation:

Whenever a substance changes it appears different or it changes its state of matter. While C appears different and changed its state of matter.

Mark meh

Answer:

the third one

Explanation:

The five conditions of chemical change include gas

Answer:

1: to preserve 2: save a species 3: it's just cool

Answer:??

Explanation:

Answer:

Zn(NO3)2(aq) + 2NaOH(aq)  —> Zn(OH)2 (s) + 2NaNO3(aq)

Zn++ + 2NO3-  + 2Na+ + 2OH- —> Zn(OH)2 + 2Na+ + 2NO3-

Zn++ 2OH- —> Zn(OH)2

Na+, NO3-

Explanation:

Zn(NO3)2(aq) + 2NaOH(aq)  —> Zn(OH)2 (s) + 2NaNO3(aq)

Answer:

8.24

Explanation:

the answer is explained above

Answer:

8.24

Explanation:

Answer:

53.31g of FeCl3

Explanation:

The equation of the reaction is given as;

2Fe(s)  + 3Cl2(g) --> 2FeCl3(s)

From the stochiometry of the reaction;

2 mol   :    3 mol       :   2 mol

112g     :      213g      :     324.4g

Converting the masses given to moles;

Number of moles of Fe = mass / molar mass = 22.5 / 56 = 0.4018

Number of moles of Cl2 = mass / molar mass = 35 /  71 = 0.4930

In this reaction, the limiting reactant is Cl2

213 g of Cl2 produces 324.4g of FeCl3,

35g of Cl2 would produce xg of FeCl3

213 = 324.4

35 = x

x = (35 * 324.4) / 213 = 53.31g

Answer:

the answer is B rising action! :)

Answer:

oxygen

if it's helpful ❤❤

Answer: within the Earth’s atmosphere, heat is transferred mostly by convention. When the air near the ground is heated, its particles move more rapidly. These particles bump into each other and move further apart. The air becomesless dense. Cooler, denser air sinks towards the surface, forcing the warmer, less dense air to rise. The upward movement of the warmer air and the downward movement of the cooler air forms convection currents.

Explanation:

Answer: 3 empirical and structural

Explanation:

Just guessed on same question got it right

Answer: Having a medical condition affect the delivery of molecules to cells in the body because your body may not receive sufficient oxygen or glucose or amino acid molecules which in turn will not allow for it to preform properly. A person may experience fatigue, or difficulty breathing, or he or she may not be producing enough of a certain hormone.

Explanation:

A medical condition can affect the delivery of molecules to cells in the body due to the inability of the body cells to function properly.

A medical condition refers to a condition that deviated from a normal state of mind. Most especially, it could be an illness, disease, or disorder.

When the body is infected with a disease or illness, the immune system will not be able to recognize or fight disease-causing organism which is usually known as pathogens.

Cells become weak and they don't perform their required activates such as the:

Learn more about cells here:

https://brainly.com/question/3142913?referrer=searchResults

Answer:

whats your question

Explanation:

Answer:

I can use a dichotomous key. It helps me classify objects by sorting it out with "yes" and "no" questions.

or

I can use a Punnett Square. It helps me classify what genes the offspring will receive simply by figuring out the recessive and dominant genes as well as the hetzygous and homzygous.

Now give an example of which ever chart you choose by drawing it if that is required. For the Punnett Square label each of the squares Top right Hetzygous, top left dominant, bottom left recessive, bot-tom right homzygous. And for the dichotomous key put a 5-7 length branch showing the animals that have fur, can breathe under water, what cannot or doesn't have those traits. or something similar

Hopefully this helps :)

Answer:

Chemical bonds. Chemical bonds are the connections between atoms in a molecule. ...

Covalent Bonds. Chemical bonds are the forces of attraction that tie atoms together. ...

Ionic Bonds. ...

Bonds, Stability, and Compounds.

Answer:

Ionic bonding.

Covalent bonding.

Metallic bonding.