How many electrons are in the outer shell of a Li +1 ion?

Answer:

D

Explanation:

Option D is the right answer. A substance that has been reduced undergoes chemical reduction. They show the following properties;

The equation that represents the process of reducing a specie is : ( D )

   NO₃ (aq) - NO(g)

The reduction of a specie is a chemical reaction process which  involves the removal of oxygen atom(s) and the the addition of hydrogen.  

A reduced specie gains/accepts electrons therefore becoming more electronegative  ( i.e. the number of electronegative atoms around it is reduced ) and It also experiences a decrease in its oxidation number

From the options provided the number of oxygen present in NO₃ reduces from O₃  to O  This makes option D the correct option representing the reduction of specie

Hence we can conclude that the The equation that represents the process of reducing a specie is

   NO₃ (aq) - NO(g)

Learn more about specie reduction : https://brainly.com/question/24367015

Answer: Element 1

Explanation:

If an element has 3 valence shells, then it must be in the third column so element 1 is the right answer. Hope this helps! :)

Answer:

You can look the answer at the photo

thankss

Answer:

Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.

The He or helium is a smallest element and the Fr or the francium is largest.

The atomic radius is a chemical element and is a measure of the atomic size. It typical distance from the center of the nucleus is bounded by the electron shells.  

The atomic radii can vary on basis of the periodic table. Hence can be seen as the radius increases from top to the bottom in a group, and then decreases from left to the right across a period.

Find out more information about the atomic radius.

brainly.com/question/1445177.

Answer:

55°C

Explanation:

original is 20

after gaining heat is 75

75 - 20 = 55

Answer:

17242,5J

Explanation:

Given parameters:

Mass of water  = 75g

Initial temperature  = 20°C

Final temperature  = 75°C

Unknown:

Amount of heat absorbed  = ?

Solution

To find the amount of heat absorbed by water;

      H  = mcΔt

 m is the mass

  c is the specific heat capacity of water  = 4.18J/g°C

 Insert the parameters and solve;

       H  = 75 x 4.18 x (75 - 20)

       H  = 17242,5J

Answer:

They are both alive organisms. They can breathe and they are known as living creatures. The stay in the same place and food comes to them and they dont hunt for food. They are both like traps.

Explanation:

Answer:

c

Explanation:

that's the direction the truck is moving

Answer:

this is answer brother

Answer:

B. Presented in all matter!

Answer:

B- presented in all matter :)

Explanation:

good luck!

Answer:

A-L

Explanation:

Since before the change, the substance is described as having atoms "close together" and "cannot slide past one another", one can assume this is a solid, since in both liquids and gases, the atoms can move around more or less freely.

Then, it explains that the new substance "can fill a container", which is a property of both a liquid and a gas.

Thus, the answer would be either P, solid to liquid, or L, solid to gas.

Since P is not an option you can choose, by process of elimination, that leaves L, or option A.

Have a nice day! ^-^

Answer:

A-L

Explanation:

i took the test

hope this helps

Answer:

Radio Waves have the lowest frequency but the highest

Explanation:

From the acronym GUX = VIR

Wavelength, deviation, and refractive index increases to the right

but frquency increases to the left

answer: 6.875 moles

nCH4 = nCO2 = 110/(12 + 4) = 6.875

6.875 moles of carbon dioxide are produced from the combustion of 110 g of CH4.

The mole is a SI unit of measurement that is used to calculate the quantity of any substance.

The reaction is

[tex]\rm CH_4 + 2O_2 = CO_2 + 2 H_2O[/tex]

To calculate the number of moles, we will use the following formula

[tex]\rm Number\;of \;moles= \dfrac{mass}{molar\;mass}\\\\\\\rm Number\;of \;moles= \dfrac{110g}{12 + 4 } =6.875[/tex]

Thus, the number of moles are 6.875.

Learn more about moles, here:

https://brainly.com/question/15209553

Answer:

2457.6

Explanation:

I calculated the answer and got it right.

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 we have

[tex]n = \frac{7.13 \times {10}^{28} }{6.02 \times {10}^{23} } \\ = 118438.538...[/tex]

We have the final answer as

Hope this helps you

Answer:

percipitate or sedements from chemical reactions

Answer/Explanation:

Part 1 and 3: Test tube 4. The hot water and Acid added to the substance makes it much more reactive, which is the reason why the new substance is bubbling. Hot water allows the particles in a chemical reaction have enough force and more chances to go through actual reaction process. This also caused it to create the most bubbles.

Part 2 and 4: Test tube 1 had the least amount of chemical reactivity. Cold water slows down the amount of times a particle in the substance hits another. This reduces the chance of it reacting and the strength of it's reaction. Test tube 1 was also missing the citric acid. Since acids have low pH it is very reactive with other particles with substances that contain less than 8 valence electrons. Without the acid it doesn't have ad much urge to react with. The lower the pH the better reactivity.

Answer:

There are 13 numbers in an aluminum atom and 13 electrons.

Explanation:

This is because the atomic number equals the number of protons and the atomic number of Al is 13.  The number of electrons also equals the number of protons.

Answer:

13, 13

Explanation:

Answer:

Explanation:

an atom is a neutral particle because it contain equal number of positive and negatively charge particle

Answer:

because it consists of the equal number of protons

Answer:

the plate movement that caused by heat-related movement is the mantle

Explanation:

Answer:

xcvbn

Explanation:

nkj

Answer:

what he said

Explanation:

Ideal Gas Law Formula.

Brainliest?

Answer:

Australia is correct

Explanation:

Because it is not attached to any other place

Answer:

yes

Explanation:

Nitride, any of a class of chemical compounds in which nitrogen is combined with an element of similar or lower electronegativity, such as boron, silicon, and most metals.

The question, Is nitride on the periodic table, would have the answer of No as it is not an element.

The periodic table lists the elements, which are the basic building blocks of matter. Nitride is not an element, but rather a compound that is formed when nitrogen combines with another element.

Nitrogen is a non-metal that is found in group 15 of the periodic table. It has an atomic number of 7, which means that it has 7 protons in its nucleus. Nitrogen is a very reactive element, and it can combine with many other elements to form compounds.

Find out more on the periodic table at https://brainly.com/question/25916838

#SPJ6

Answer:

I CANT

Explanation:

Answer:

phisical i think

Explanation:

chemical would be baking powder in a pancake, the pancake would be in turn more brown cause of baking powder mixing with flower.

Answer:

An attraction between the positive end of one molecule and the negative end of another

Explanation:

The molecular shape affects the polarity as:

A. If the molecule contains nonpolar bonds, a bent shape will make it polar.

The sub-atomic math of a particle influences its extremity. Every CO bond has a dipole second, however they point in inverse bearings so the net CO2 atom is nonpolar. Conversely, H2O is polar in nature of the fact that the OH bond minutes don't offset.

Thus, option A is correct.

Find more information about polarity here:

brainly.com/question/26849258

Answer:

12 individuals are born 10 individuals emigrate, 4 individuals die, 14 individuals immigrate, 0 individuals are born

Explanation:

From the formula:

Population growth = (birth rate + immigration) – (death rate + emigration)

                       = (b + i) - (d + e)

For the first option, b = 12, i = 0, d = 12, e = 12

population growth = (12+0) - (12+12) = -12

For the second option: b = 13, i = 0, d = 3, e = 16

population growth = (13+0) - (3+16) = -6

For the third option: b = 12, i = 20, d = 0, e = 8

population growth = (12+20) - (0+8) = 24

For the last option: b = 0, i = 14, d = 4, e = 10

population growth = (0+14) - (4+10) = 0

Hence, the last option is the correct option.

Answer:

d because i got a 100%

Explanation: