What is released when a bond between two atoms breaks?
A. Electrical energy
B. Chemical energy
C. Intermolecular force
D. Intramolecular force

Answers

Answer 1
B chemical energy is a form of potential energy,energy is stored in a chemical bond, when that bond breaks chemical energy is released

Related Questions

6.23 X 10^6 KL + 5.34 × 10^6 kL

Answers

I’m standard form it will be 11570000 KL or in scientific notation 1.157x10^7

HELP ME PLEASE I NEED HELP SO BADLY

Answers

State the given:

Moles of Sulfur = 5 moles

Molar mass of Sulfur = 32.06g/mol

Look through the formulas:

Moles = Mass/Molar Mass

Rearrange the equation:

Mass = Moles x Molar mass

Plug in your given:

5 moles Sulfur   x   32.06g

                                 1 mol

= 160.3g of Sulfur

what activity occurs in the process of photosynthesis

Answers

Answer:

Photosynthesis is the process in which light energy is converted into chemical energy in the form of sugars. In a process powered by light energy, glucose (and other sugars) molecules are created from water and carbon dioxide, while oxygen is released as a by-product.

Explanation:

i'm mexican

a sample osoxooso sixisoxoso

Answers

Answer:

I believe the correct answer is A.

Explanation:

He atoms are smaller than Ne atoms (4AMU vs 20AMU).  Although the kinetic energy and concentrations are the same (same temperature and each have 0.5 mole  in 10.0L containers), the kinetic energy is a product of mass and velocity.  Since the Ne mass is greater, it will have a lower speed, thus taking longer to bounce out the pinhole.

Significant digits for the number 80

Answers

Answer:

8 and 0

Explanation:

8 and 0 together make 80

Sources of error in colorimetry?

Answers

It is simply not accurate due to many reasons such as environment, user, instrument as well as light which can easily change colours

Calculate the molar mass for CO

Answers

Answer:28.01 grams

Explanation:

BRAINLIEST TO FIRST RIGHT ANSWER

Students were investigating heat transfer by conduction and they set up the simple experiment you see here. They utilized three spoons made of different materials: the specific heat capacity of each material was recorded in the students' data table. Each spoon was placed in a pot of hot (90°C) water and a pat of butter was placed on the handle of each spoon. The butter melted first on the tin spoon and in about the same amount of time on the plastic and wood spoons. Based on the data table and the experimental results select ALL of the conclusions that are appropriate.

A) Conduction occurred more readily in the tin due to its lower specific heat
capacity

B) Heat transfer via conduction occurred from the hot water to the spoons
and then to the butter,

C) When in contact with hot water, there was no transfer of kinetic energy
through the wood or plastic

D) The atoms in the tin spoon vibrated and collided at a greater rate thon
those in the wood or plastic spoons

E) In all three cases energy s transferred from the faster moving hot water
molecules to the slower moving molecules in the spoon​

Answers

Answer:

the Answer is A B D

Explanation:

the cunduction in the spoons are equal to all the following answers

Conduction occurred more readily in the tin due to its lower specific heat capacity, Heat transfer via conduction occurred from the hot water to the spoons and then to the butter, The atoms in the tin spoon vibrated and collided at a greater rate thon those in the wood or plastic spoons. Thus option A,B, D are correct.

What is specific heat ?

Specific heat can be measured as the quantity of heat required to increase the temperature of one gram of a substance by one degree Celsius.

The units of specific heat  are represented as calories or joules per gram per Celsius degree such as the specific heat of water is 1 calorie  per gram per Celsius degree

Specific heat capacity= Heat quantity/ mass × change in temperature.

If Q is the quantity of heat in joules, M is the mass of substance heated,

If ∆O is the change in temperature in Kelvin, Then Q= MC∆O, C is a constant called Specific heat capacity. Therefore, making C the subject of formula:

C= Q /M∆O

Thus option A,B, D are correct.

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Find the mass in kilograms of the liquid air that is required to produce 600L of oxygen. In normal condition, 1L of liquid air has 1.3g​

Answers

Explanation:

1L is 1.3 g so 600L is 780 g

1kg= 1000g so

780 g = 0.78kg

I GUESS

Mass in kilograms of liquid air required = 0.78 kg

Given that

1 Litre of liquid air contains 1.3 grams of oxygen ( air )

Determine the amount of liquid air in Kg

volume of air given = 600 L

mass of liquid air required = x

1 litre = 1.3 grams

600 L =  x

∴ x ( mass of liquid air ) = 1.3 * 600

                                       = 780 g  = 0.78 kg

Hence we can conclude that Mass in kilograms of liquid air required = 0.78 kg

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In 1980 the Mt. St. Helens volcano erupted and impacted thousands of square miles of forest.Some areas are still undergoing secondary succession where

Answers

Answer:

Explanation:

1: Pioneer species are the first to colonize: During primary succession in lava on Maui, Hawaii, succulent plants are the pioneer species. After weathering breaks down the lava into the soil, the plants are able to take root. These plants will help to further change the soil by adding nutrients to it.

The first organisms to appear in areas of primary succession are often mosses or lichens. These organisms are known as pioneer species because they are the first species present; pioneer species must be hardy and strong, just like human pioneers.

F
norm
app
F
grav
F
fric
Which statement is true in this situation?
A. The size of Ffric is the same as the size of Fgrav-
B. The size of Fnorm is the same as the size of Ffric
C. The size of Ffric is the same as the size of Fapp:
D. The size of F
app is the same as the size of Fgrav

Answers

The statement is true in this situation is C. The size of Ffric is the same as the size of Fapp:

From the diagram, since the body is in equilibrium, the sum of vertical forces equals zero. Also, the sum of horizontal forces equal zero.

So, ∑Fx = 0 and ∑Fy = 0

Since Fapp acts in the negative x - direction and Ffric acts in the positive x - direction,

∑Fx = -Fapp + Ffric = 0

-Fapp + Ffric = 0

Fapp = Ffric

Also, since Fgrav acts in the negative y - direction and Fnorm acts in the positive y - direction,

∑Fy = Fnorm + (-Fgrav) = 0

Fnorm - Fgrav = 0

Fnorm = Fgrav

So, we see that the size of Fapp equals size of Ffric and the size of Fnorm equals the size of Fgrav.

So, the correct option is C

The statement which is true in this situation is C. The size of Ffric is the same as the size of Fapp.

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which of the following substances is most soluble in water
a). table salt
b). baking soda
c). Epsom salt
d). table sugar

Answers

Answer:

Table salt

Explanation:

Is most soluble in water

What is the mass of air in room

Answers

Answer:

the mass of the air in the room is 4.96512 kg ( in 0°C)

Name these ionic compounds
12. Ag3N
13. NaF
14. Ba
15. Na2S
16. AIBr;
17. LiN
18. KF
19. Srl2
20. Mgo
21. Al2O3
22. CaH2

Answers

12. silver nitride

13. Sodium fluoride

14. barium

15. sodium sulfide

16. aluminium bromide

17. lithium nitride

18. potassium sulfide

19. strontium iodide

20. magnesium oxide

21. aluminium oxide

23. calcium hydride

How do carbon atoms form many organic compounds

Answers

Carbon has four valence electrons, so it can achieve a full outer energy level by forming four covalent bonds. When it bonds only with hydrogen, it forms compounds called hydrocarbons. Carbon can form single, double, or triple covalent bonds with other carbon atoms.

a wrong

b wrong

c right

d wrong

kcal/mole
EE E E
SODIUM
1s 2s 2p 3s
118
1091
1653
MAGNESIUM 1s 2s 2p 3s2
175
345
1838
2526
ALUMINIUM
1s 2s 2p 3s 3p
138
434
656
2767
If the valence electrons were removed, what would be the lon charge of the element?
Na =
O-1
+1
0-3
+3

Answers

Answer:

+1

Explanation:

your removing a electron and it was already balanced

Using the periodic table, choose the more reactive nonmetal.
Br or As

Answers

Br and As:

Bromine is more reactive as reactivity increases on moving from left to right in p-block

Why are the three atoms are isotopes of magnesium

Answers

Answer:

Magnesium is a naturally ubiquitous; (appearing & found evrywhere) element and has three naturally occurring stable isotopes, 24Mg, 25Mg and 26Mg, with relative abundance of 78.99%, 10.00% and 11.01%, respectively.

However, they differ only because a 24Mg atom has 12 neutrons in its nucleus, a 25Mg atom has 13 neutrons, and a 26Mg has 14 neutrons.

Explanation:

where does oxidation occur in an electrochemical cell

Answers

Anode


According to the mnemonic “Red Cat An Ox”, oxidation occurs at the anode and reduction occurs at the cathode. Since the reaction at the anode is the source of electrons for the current, the anode is the negative terminal for the galvanic cell.

The intermolecular forces between polymer molecules are strong, so these substances are __________ at room temperature. What word completes the sentence?

Answers

Answer:

I want to say

Stronger

what was transferred from the hydrochloric acid to the water molecule

Answers

A proton (H⁺) is transferred from the hydrochloric acid to the water molecule.

What is Bronsted-Lowry theory?

Bronsted-Lowry theory is used to classify acids and bases.

Acid: is a substance that donates H⁺.Base: is a substance that accepts H⁺.

Hydrochloric acid is an acid and when it reacts with water, it transfers an H⁺ ion, according to the following equation.

HCl + H₂O ⇒ Cl⁻ + H₃O⁺

A proton (H⁺) is transferred from the hydrochloric acid to the water molecule.

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Calculate the following. Be sure to follow significant figure rules.

1.) 1.2 m + 2.35 m =

Answers

1.2 + 2.35 = 3.6m (2sf)

Ignore me I dont know what im doing.

Why are the melting and boiling points of an
element or a compound are called its fixed points.

Answers

Substances having fixed chemical proportions will have fixed boiling and melting points. This is the reason that Pure substances have specific melting and boiling points because their chemical proportions are fixed. Mixtures melt and boil over a range of temperatures

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I need to right a journal entry for school but i don't know what to put Write a journal entry from the perspective of a particle of light,
called a photon. Your story should follow the photon as it
travels from a star in the Milky Way that is 25 light years away
from Earth, all the way to the eye of a young person gazing up
at the night sky through their bedroom window. Compose your
entry in complete sentences.

it is for my 5 grad sicenc

Answers

Answer:

here you go

Explanation:

someone help me on this but i still got a hundred

In a laboratory, a student combines vinegar and baking soda into a beaker. The initial temperature is 28 degrees Celsius and the final temperature reading two minutes later is 20 degrees Celsius.

1. What happened to the heat in the surroundings?


2. Did an endothermic or exother mic reaction occur​

Answers

The reaction is endothermic because the temperature dropped from  28 degrees Celsius to  20 degrees Celsius.

Meaning of endothermic and exothermic reaction:

An endothermic reaction is one in which heat is absorbed from the surrounding resulting in decrease in temperature while an exothermic reaction is one in which heat is evolved causing the temperature to rise.

In the particular context of this question, the reaction is endothermic because the temperature dropped from 28 degrees Celsius to 20 degrees Celsius. The heat in the surroundings decreased.

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how many moles of oxygen molecule is reacting with sodium according to the following reaction:
2Na+O - Na2O2

Answers

1 mole of oxygen.

Answer:

solution given:

[tex]2Na+O_2=Na_2O_2\\2mole\:\: 1mole \:\: 1mole[/tex]

according to the above reaction,1 mole of oxygen is required to react with 2 moles of sodium to form sodium peroxide.

Explanation:

match each statements with the state of matter it describes?

Answers

Answer:

Solid  liquids , plasma gas

Explanation:

It retains its shape regardless of the shape of the container

Which atom has the largest atomic radius? *
1.Cl
2.F
3.I

Answers

Answer: 2

Explanation:I think

Explain why the melting temperature of boron trichloride is much lower than that of sodium chloride​

Answers

Boron trichloride has a simple molecular structure,
whereas sodium chloride has a giant ionic lattice
structure. The ionic bonding between oppositely
charged ions in NaCl is stronger than the covalent
intramolecular bonding in BCl3. Therefore, less energy
is required to break the intramolecular covalent bonds in
BCl3, hence a lower melting temperature.

2870 j of energy is required to heat and boil one gram of water at 20 °c. how much water at this temperature can 7.14 × 1010 j of energy heat and boil?

Answers

Answer:

Explanation:

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The mass of water is equal to 2.48 × 10⁷ g, needs the energy of 7.14 ×10¹⁰ J to heat and boil.

What is the specific heat capacity?

The specific heat capacity can be demonstrated as the quantity of energy needed to increase the temperature by one-degree Celcius in one unit of substance.

The temperature will be changed whenever there is a loss or absorption of energy by any substance.

Q = mCΔT

Therefore, there is a direct relationship between the mass of water and the amount of energy.

m ∝ q

[tex]{\displaystyle {\frac{m_1}{m_2} =\frac{q_1}{q_2}[/tex]

[tex]{\displaystyle {m_2} =\frac{q_2}{q_1} \times m_1[/tex]

Given, the energy required to heat mass(m₂) of water, q₂ = 7.14 ×10¹⁰ J

The energy to heat 1 gram of water, q₁ = 2870 J

[tex]{\displaystyle {m_2} =\frac{7.14\times 10^{14}}{2870} \times 1[/tex]

m₂ = 2.48 × 10⁷ g

Therefore, the mass of water is equal to  2.48 × 10⁷ g.

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