when i search in google for any problem when i try to open the answer in brainly . when i open i could not get answer page instead of that i mgetting other page .can u help i havemore problems within today can any body help me to open​

Answer:the positive ionic radius is smaller than the neutral atomic radius

Explanation:

Answer:The positive ionic radius is smaller than the neutral atomic radius.

Explanation: just took the test

Answer:

1. Both metals and nonmetals are types of elements and can be involved in chemical reactions. Some of their differences are highlighted in the chart below.

  Metals:    

Appearance; Shiny.    

Conduct heat or electricity; Yes.  

Malleable or ductile; Yes, both and has great mechanical strength.    

Form stable compounds; Forms stable compounds with acids; also forms oxides; replaces hydrogen in acids or water; combine with nonmetals; often becomes positive.

  Nonmetals :  

Appearance; Not shiny .  

Conduct heat or electricity; Not well .  

Malleable or ductile; Brittle and not easily molded into shapes .  

Form stable compounds; Oxides usually give acid reactions in water; often becomes negative

2. The electrochemical series is an arrangement of metals in such order that any metal in the list is displaced from its compounds by any metal above it, but displaces any metal below it. The higher up the list a metal is, the greater its activity. Knowing a metal’s placement on this chart can help you understand the activity of the metal, especially in regard to its ability to displace hydrogen in acids. Any items on the list far above hydrogen will do a good job at displacing it, those near it won’t do such a good job, and those below it won’t displace it from acids at all.

3. When placed in water, acids dissociate and form free hydrogen ions, which determine the properties of acids. The number of hydrogen ions determines the strength of an acid. Strong acids dissociate to a large degree and produce a large number of hydrogen ions. Weak acids dissociate to only a slight degree.

When placed in water, bases dissociate and form free hydroxyl ions, which determine the properties of bases. Strong bases dissociate to a great degree and produce a large number of hydroxyl ions. Weak bases dissociate to only a slight degree.

When free hydrogen ions and free hydroxyl ions are removed from solutions of acids and bases, then the acidic and basic properties disappear. This is what happens when acids and bases are mixed together in proper proportion; the hydroxyl ion will unite with the hydrogen ion to form water. The resulting salt product is neutral.

4. Indicators are used to help determine the pH value of an unknown solution. These are often papers that turn a certain color at certain pH values.

Metals are good conductors of heat and electricity but the non-metals are not.

Metals are good conductors of electricity and heat whereas non-metals are poor conductors of heat and electricity. Metals have high density while on the other hand, non-metals have low density. Metals are malleable and ductile whereas non-metals are brittle.

So we can conclude that metals are good conductors of heat and electricity but the non-metals are not.

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Answer:

C. would be the correct option.

Explanation:

Burning gasoline is a chemical change because when gasoline is ignited, water and carbon dioxide are produced. Water freezing to form ice would be a physical change since its state of matter has changed, but not the water itself. Sugar dissolving in water is also a physical change because all it's really doing is just forming bubbles and changing the color. Choice D. would also be a physical change since the piece of metal is still a piece of metal, it just expanded when the temperature increased.

Answer:

C. They have no charge and are located inside the nucleus

Explanation:

This is correct and can I have brainliest

Answer:

your dad and i don't care if i have been warned

Explanation:

he left for some milk

Beacuse a liquid is a physical property of matter so is gas  solid and plazma what im getting it is they are propertys beacuse that helps the mind process them better.

Answer:

olivine im pretty sure

Explanation:

calcite has a hardness number of 3 and calcite has a hardness number of 6.5-7

The Scientific Notation of  Xenon’s density : 1.31293 × 10²

Scientific Notation consists of 2 parts

1. the first part: the first digit followed by the decimal point

2. The second part: the power of 10 which shows the number of digits after the decimal point

Xenon's density = 131.293

First digit = 1, then we give the decimal point and the next digit

The power of 10 is determined from the number of decimal points moved from the original decimal point

Because we move the decimal point two digits to the left, the power of 10 has the number 2 (10²)

So that the Scientific Notation form becomes:

1.31293 × 10²

Answer:

the sun Solar energy

Explanation:

Energy from the sun. Solar energy is the original source of most energy on Earth. There are many ways we use energy from the Sun.

Answer:

the sun Solar energy

Explanation:

Energy from the sun. Solar energy is the original source of most energy on Earth. There are many ways we use energy from the Sun. btw hope this helps u out =)

Answer:

it drops off of carbon dioxide... but i believe when the blood returns to the heart it " travels" through the pulmonary veins...

use your brain :)  brainliest pweasee?

Answer:

Often a given reaction can be placed in two or even three categories, including gas-forming and precipitation reactions. Many reactions produce a gas such as carbon dioxide, hydrogen sulfide, ammonia, or sulfur dioxide.

Mark me as brainliest if u found it helpful

Combustion is a types of reactions which would result in the production of gas. Chemical reaction, the transformation of one or more chemicals into one or more distinct compounds.

Chemical reaction, the transformation of one or more chemicals (the reactants) into one or more distinct compounds (the products). Chemical elements or chemical compounds make up substances. In a chemical reaction, the atoms that make up the reactants are rearranged to produce various products.

Chemical reactions are indeed a fundamental component of life itself, as well as technology and culture. Hydrocarbon - based, smelting iron, creating glass but also pottery, brewing beer, making wine, and making cheese are just a few examples of ancient processes that involved chemical reactions. Combustion is a types of reactions which would result in the production of gas.

Therefore, combustion is a types of reactions which would result in the production of gas.

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Answer:

The milky waY is the answer

Explanation:

Answer:

true

Explanation:

Answer:

False.

Explanation:

The number of protons in an atom also places it on the periodic table- the 1st element on the periodic table is Hydrogen because it has 1 proton. If it had 2- it'd be Helium. Neon must have 10 protons to be #10 on the periodic table. (and to even be Neon)

[tex] \LARGE{ \underline{ \orange{ \sf{Required \: answer:}}}}[/tex]

The water trapped inside the cracks of the rocks will freeze during the winter season. They will contract and will form ice which will apply pressure on the rocks. This will cause them to break apart and turn into smaller pieces. Hence the correct option is:

[tex] \large{ \boxed{ \bf{Option \: B}}}[/tex]

The above phenomenon is responsible for the physical weathering of rocks to form soil.

Answer:

he do be lookin sus

Explanation:

Answer:

yeah

Explanation:

d

Answer:

Be: Helium--------Loses-------4--------Be2+

B: Helium--------Loses--------5--------B5

N: Helium--------Gain---------7--------N3−

O: Lithium---------Gain--------8-------O2−

F: Neon--------electrically neutral-------9---------F-

Explanation:

Hope this helps:)

Answer:

c. Mixtures can be separated by physical means, but compounds cannot.

Explanation:

Mixtures are comprised of two or more pure substances that have not combined to make a new substance. Because all pure substances have their own unique properties, mixtures can be separated by physical means.

Compounds are pure substances which means they have their own properties. Compounds are formed through a chemical means, and therefore must be separated through a chemical means.

Answer:

C

Explanation:

In compounds: Their individual constituent do not retain their properties hence cannot be separated by physical means

In mixtures: Their individual constituent retain their properties hence can be separated by physical means

Answer:

density of sugar = 1.6 g/cm³

density of oil = 0.87 g/mL

Explanation:

1)

Given data:

Mass of object = 12.9 g

Volume of object = 8 cm³

Density of brown sugar = ?

Solution:

Formula:

d = m/v

d = density of object

m = mass of object

v = volume of object

Now we will put the values in formula.

d = 12.9 g/ 8 cm³

d = 1.6 g/cm³

2)

Given data:

Mass of oil  =  43.5 g

Volume of container = 50 mL

Density of oil = ?

Solution:

Formula:

d = m/v

d = density of oil

m = mass of oil

v = volume of oil

Now we will put the values in formula.

d = 43.5 g/ 50 mL

d = 0.87 g/mL

In fact, you can expect to be able to dissolve no more than 40 g of sodium chloride per 100 g of water at 80∘C .

it may help you

Answer:the answer is a chemical change, because a gas was produced

Explanation:  yeast is a chemical

Answer:

The answer is C.

"Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions."

Explanation:

Answer:

If an object is accelerating the forces acting on the object are BALANCED.

Explanation

if an object is moving at a constant rate of acceleration, the the forces acting upon it are balanced .

Answer:

It is  composed of two or more substances that retain their own chemical properties

Explanation:

Answer:

Electrons

Explanation:

Atoms can combine together and share electrons between them. Atoms that share electrons are linked to each other in a form, called a molecule that is in a lower energy state than either of the separate atoms alone.

Pls Brainliest! It would mean a lot! ;)

Answer:

Explanation:

d

Answer:

D. All it’s mechanical energy is transformed into other forms of energy.

Explanation:

I got it right

Answer:

B

Explanation:

Answer:

What is we doing explain first before you say you need help with.

Explanation:

ok

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question

N = 7.14 × 10^35 molecules of O2

We have

[tex]n = \frac{7.14 \times {10}^{35} }{6.02 \times {10}^{23} } \\ [/tex]

We have the final answer as

Hope this helps you

Answer: i would say the first one

Explanation: