An isotope of a mystery element has 8 protons, 8 electrons, and 10 neutrons. What
is its mass number?

The higher animals in the food chain would probably not survive.

Explanation:

when I was really confused in science class and I think a lot but not found in book then I get help from my friend but he also don't know that and then finally my teacher solves it the question was what makes a rainbow .

Answer:

a)NO has smaller moles

b)1.866

Answer:

C. Is an inward force that tends to minimize the surface area of a liquid

Explanation:

Answer:

75%

Explanation:

percent yield is the actual yield divided by the theoretical (predicted) yield, then multiplied by 100 to get a percentage.

60/80 = 0.75

0.75 x 100 = 75%

Answer:

33.34 %

Explanation:

Given that,

Actual yield = 60 g

Theoretical yield = 80 g

We need to find the percentage yield. It can be calculated as follows :

[tex]\%=\dfrac{Acutal-theoretical }{Actual}\times 100\\\\=\dfrac{60-80}{60}\times 100\\\\=33.34\%[/tex]

So, the required percentage yield is 33.34 %.

Answer:

A

Explanation:

A

Answer:

no so boring........................

Answer:

Mass Cannot be created or destroyed. So everything that goes into a chemical reaction has to come out the other side, like cars driving into a tunnel. Any balanced equation of a chemical reaction is an example

Answer: To develop a strategy for the order in which you add the various equations.

Explanation:

In a Hess’s Law problem, you have to develop a strategy for the order in which you add the various equations. hope this helps <3

The statement, that describes Hess's law applied in calculating enthalpy is "all the reactions in a path are added together."

Hess' law of continuous heat summation, abbreviated as Hess' law.  Hess' law says that the rise in enthalpy, or reaction heat at constant pressure, in a chemical reaction is independent of the process between the starting and final states.

According to Hess's Law, the enthalpy change for a chemical reaction is independent of the route travelled. This indicates that the overall enthalpy change will be the same regardless of how many steps are completed. Because enthalpy is a state function, we can calculate the overall change in enthalpy by simply adding the changes at each step along the way until the product is obtained All processes must take place at the same temperature, and the equations for each step must balance.

In a Hess's Law problem, you must devise a technique for adding the numerous equations in the correct order.

Hence the correct answer is B.

Learn more about Hess's Law here

https://brainly.com/question/26491956

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Answer: im going to say it is  b

Explanation:

Answer:

7.9432*10^-10 or 10^-9.1

Explanation:

pOH=-log[OH]

Answer:

the answer is a because cirrus clouds have that definition

The london dispersion forces are stonger in iodoacetic acid than chloroacetic acid  making chloroacetic acid  to have a lower boiling point.

The London forces are forces are intermolecular forces that act on compounds depending on the size of the molecule.

We must note that iodoacetic acid is a larger molecule than chloroacetic acid hence the london dispersion forces are stonger in iodoacetic acid than chloroacetic acid  making chloroacetic acid  to have a lower boiling point.

Learn more about boiling point: https://brainly.com/question/365923

Answer:

Coal is the fossil fuel causing the most pollution.

Explanation:

I hope this helps.

Explanation:

First Question

- The correct chemical formular is ;  Al2(SO4)3

Second question

The following applies;

- The mass of the products is the same as the mass of the reactants

- At least one new product formed is a gas

- Molecules are changing into different molecules

Third Question

- Zn + HCl → ZnCl2 + H2

Fourth Question

- The atoms in the original substances regroup and form a different substance

- Matter is conserved

- The same atoms are present before and after the reaction

Answer:

8.748111203262969

Explanation:

Answer:

There are two Two level represented in biological name....

Explanation:

There are two level of classification represented in biological name. Genus and specie.....

Answer:

the correct answer to your question is 20

Answer:

It has the same number of protons, neutrons and electrons

Explanation:

A neutral atom of non-isotopic fluorine should have 9 electrons, 9 protons and 9 neutrons.

Answer:

A particle you cannot see with your eyes

Explanation:

An atom is the smallest indivisible particle of an element. It is the particle that determines the chemical properties of an element. However, an atom is a very small-sized particle, of about 10^-10m.

Based on how small a particle is, it cannot be seen with the naked eyes and hence, requires that one uses a microscope to view it.

Answer:

CHEBI:3312 - calcium dichloride

Explanation:

Calcium chloride is an inorganic compound, a salt with the chemical formula CaCl2.

Answer:

CHEBI:3312 - Calcium dichloride

Answer:

F,A

Explanation:

Answer:

no

Explanation:

Acidic oxides, or acid anhydride, are oxides that react with water to form an acid, or with a base to form a salt. They are oxides of either nonmetals or of metals in high oxidation states.

Answer:

The answer is no!

Acidic oxides, or acid anhydride, are oxides that react with water to form an acid, or with a base to form a salt. They are oxides of either nonmetals or of metals in high oxidation states.

Answer:

K3N

Explanation:

writing formulas from valency

the valency of potassium is 1

the valency of nitrogen is 3

that will be

K. N

1. 3

cross multiply

that will be

K3N