A chemical reaction is when substance are changed into other substances.

True or False

Answers

Answer 1

Answer:

True

Explanation:

coz it is when one or more substances are mixed to produce one substance

Answer 2

Answer:

true

Explanation:

when its asking for a chemical reaction its asking for if it changed or had any effects like changing color or having weird effects on things it is mixed with or touches so its true


Related Questions

what is the hybridization at each carbon atom in the molecule?

Answers

The carbon atoms are sp3 hybridized.

Hope this helps!

Can someone help me with this chemistry question?

Answers

Answer:

B no. is the answer because

Explanation:

acids increase the hydrogen ion concentration, which provides more ionsan acid comes in contact with a metal, the acid steals free electrons away. That loosens the bonds holding metal atoms in place, so the metal dissolves. That's a chemical change, so the ability of acids to dissolve metals is a chemical propertyWhen a strong acid is neutralized by a strong base there are no excess hydrogen ions left in the solution. The solution is said to be neutral as it is neither acidic nor alkaline. The pH of such a solution is close to a value of 7; the exact pH value is dependent on the temperature of the solution.

So this can probably be the the answer

Hope my answer helps

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How do the atoms aluminum and fluorine react to form the compound aluminum fluoride?

Answers

Answer:

Aluminum fluoride is an ionic compound. Meaning that the two elements form a ionic bond. In ionic bonding, atoms receive and donate electrons in order to become stable. In this case, aluminum donates its three outer electrons to three fluorine atoms. Aluminum forms a triple positive aluminium ion (Becomes a cation) and fluorine forms three single negative fluoride ions (Becomes a anion).

Aluminum (3+)Fluorine (1-)

what are colloids ? ​

Answers

A solution in which the size of solute particles is intermediate between those in true solution and suspension is called as Colloids.

Answer: A colloid is a mixture in which one substance consisting of microscopically dispersed insoluble particles is suspended throughout another substance.

Hope it helps , have a nice day :>

What do the electron configurations of the elements Mo and Pt have in common?

Answers

Answer:

All of the elements in a period have the same number of atomic orbitals. For example, every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons.

Explanation:

if 15 grams of carbon is present at the beginning of a reaction,how many grams of carbon will be present in the products?

Answers

The law of conservation states that the mass of the element remains the same during the course of the reaction.

The law of reaction conformed by the following:-

Mass of reactantMass of product

According to the question, the amount of carbon is 15g in the reactant and the amount will remain same at the end of reaction, which is product that is 15g.

Hence, the amount remain same in the reaction that is 15g.

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can someone plaexplain to me what is 'first ionisation energy' in simple words coz my small brain can't understand it​

Answers

[tex] \: \: \: \: \: \: [/tex]

the first ionization energy of an element is the energy needed to remove the outermost, or highest energy, electron from a neutral atom in the gas phase.

hope it helps

[tex] \: \: \: \: \: [/tex]

Did you know that
1-7=0

Answers

Answer:

No I didn’t

Explanation:

I never knew that this helped me a lot thanks

is a single cell the smallest structure that carries out our activities nesscesary for life

Answers

yep, the cell is the smallest unit in a living organism that is capable of carrying out all of the activities of life.

An electron moved from a lower energy level to a higher energy level. What most likely happened during the transition? (4 points)

Group of answer choices

A random amount of light was released.

A fixed amount of energy was absorbed.

A fixed amount of energy was released.

A random amount of light was absorbed.

Answers

Answer:

A. A random amount of light was released

Explanation:

A random amount of light was released. Hence, option A is correct.

What are electrons?

An electron is a negatively charged subatomic particle. It can be either free (not attached to any atom) or bound to the nucleus of an atom. Electrons in atoms exist in spherical shells of various radii, representing energy levels. The charge on a single electron is considered the unit electrical charge.

Electrons are sub-atomic particles that occupy energy levels in an atom of any chemical element. These electrons may move from one energy level to another.

Electrons may move from a lower energy level or ground state to an excited state or high energy level, or else move from a higher energy level to a lower energy level.

When an electron moves from a lower energy level to a higher energy level energy is absorbed by the atom, and when the movement is from a higher energy level to lower energy is released mainly as light.

Hence, option A is correct.

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9. Which of Earth’s sphere consists of all living things? A. hydrosphere B. geosphere C. biosphere

Answers

Answer:

i think its b

Explanation:

i took it

difference between condensed milk and evaporated milk

Answers

The major difference that sets these two canned milk products apart is sugar content; sweetened condensed milk, as the name implies, is always sweetened, while evaporated milk is unsweetened

oncepts
4 List What are some of the physical properties
of stars?

Answers

Answer:

Brightness. Two characteristics define brightness: luminosity and magnitude. ...

Color. A star's color depends on its surface temperature. ...

Surface Temperature. ...

Size. ...

Mass.

Explanation:

there

Calculate the molar mass of carbon tetrachloride, CCl4.

Answers

the answer is 153.82 g/mol


An atom, X, contains 16 protons.
Which statement about Z is correct?Explain why.
A) It cannot form an ion.
B) It contains 6 electrons in the outer shell.
C) It contains 6 neutrons.
D) It had relative atomic mass of 16.

Answers

Answer:

B

Explanation:   as protons no. = electrons no.= atomic number(Z)

What is mechanical energy?

The energy that is associated with the motion or position of an object
The energy that travels in waves from the moon
Any energy that travels through a medium like water
The stored energy in a substance like oil or gasoline

Answers

Answer:

The energy that is associated with the motion or position of an object

or simply kinetic or potential Energy

what do you do if you add a bit too much solvent when filling the volumetric flask to the mark

Answers

If excess solvent is added, discard the entire solution and begin the process of preparing the solution afresh.

It is common to prepare solutions using a standard volumetric flask. In this method, the required amount of solid or liquid is added to the volumetric flask and made up to mark with solvent.

Sometimes, it is possible to mistakenly exceed the mark as the solvent is added. In such cases, you must discard the entire solution and begin the process of preparing the solution afresh.

Learn more: https://brainly.com/question/8646601

Which of the following best describes the relationship between a
mutation and a resulting change in the coat color of a mouse?

Answers

Answer:

A I think

Explanation:

what is distillation used to seperate

Answers

Distillation is used to separate liquids from nonvolatile solids as in separation of alcoholic Liquors from fermented materials or in the separation of two or more liquids having different boiling points as in the separation of gasoline Carrison and lubricating oil from crude oil

Answer: It is used to separate a solvent from a solute.

Explanation:

AgNO3(aq) + NaCl (aq) —> AgCl (s) + NaNO3 (aq)

The equation represents a __ reaction.

A. synthesis
B. decomposition
C. neutralization
D. double replacement

Answers

Answer:

D

Explanation:

double replacement

the reactants decompose to form new substances by exchange of radicals

1. A substance which takes the shape and volume of its container is a?
Solid
Liquid
Gas
Crystal

Answers

Answer:

Liquid

Explanation:

Liquid

Answer:

Gas

Explanation:

Gas takes the shape and volume of its container because it doesn't have a definite shape or volume.

Liquid is wrong because it takes the shape of its container, but has a definite volume.

Gas is wrong because it has a definite shape and volume.

Crystal is definitely wrong.

Which of the following moves away from the central nervous system?
Afferent Neuron
Efferent Neuron
Proxima Neuron
Distal Neuron

Answers

Answer:

distal

Explanation:

you c a n remember that by the word distance

Distal Neuron would be correct


3. A baseball bat striking a baseball and sending it toward left field is an example
of energy transformation. True or false. Please help it’s due tomorrow!!!

Answers

Answer:

TRUE

Explanation:

How does the microscopic arrangement of particles affect the microscopic behavior of the solution?

Answers

Answer:

In a solid, the particles pack together as tightly as possible in a neat and ordered arrangement. ... With an increase in temperature, the particles gain kinetic energy and vibrate faster and more strongly. The attractive force in solids need not be stronger than in liquids or gases

What is the value of c?
56.70

Answers

Due to the lack of information provided, the best I can give you is this:

In Chemistry, the letter c most commonly refers to specific heat, which is present in the ratio J/g°C.

Hope it helps :)

Write the balanced equation!!
Acid-Base Reactions: HA + BOH → BA + H2O
Sulfuric Acid, H2SO4 (aq) + potassium hydroxide (aq) potassium sulfate (aq) + water (l)

Answers

Answer:

H2SO4 + 2KOH + K2SO4 + 2H2O

Explanation:

there are 2 potassium atoms on the left side so gotta balance that and 2 for the H in the KOH so we have to add a 2 for the hydrogen in H2O..I hope this is useful..

An irregularly shaped stone was lowered into a graduated cylinder holding a volume of water equal to 2 ml. The height of the water rose to 7 ml. If the mass of the stone was 25 g, what was its density?

Answers

The density of an object is the amount of mass per unit volume. The idea of putting the stone into the water in a graduated cylinder is that this tells you the volume of the stone. Since the water raised increased from the 2 mL mark to the 7 mL mark after putting it in the cylinder, the volume of the stone must be equal to 5 mL of water. At room temperature, 1 mL of water has the same volume as 1 cubic centimeter (cm^3), so the stone also has a volume of 5 cm^3.

To get the density, divide the mass of the stone by its volume:

D = m/v = (25 g)/(5 cm^3) = 5 g/cm^3

The density of the stone is 5 grams per cubic centimeter.

Hope this helps!

liquid bromine easily evaporates. explain what happens to the particles when a liquid evaporates​

Answers

Answer:

they gain enough energy to break away from the bonds that keeps them a liquid

also the particles diffuse away

Explanation:

When liquid bromine evaporate,

Then space or distance between its particle increases.The bromine particles start moving freely when it evoporates .The inter-molecular force of attraction between particles is increases when liquid bromine evaporates.

Why liquid bromine easily evaporates?

The liquid bromine easily evaporates because of following reasons:

The liquid bromine is more denser then water.Its melting and boiling point is -7°C and 58.9°C.The liquid bromine present in the form liquid at room temperature that is why it is easy evaporates.

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Can someone help me with this chemistry question please?

Answers

C. Energy use

please mark me a brainlist

When a glucose molecule loses a hydrogen atom in an oxidation-reduction reaction, the glucose molecule is ________

Answers

Answer:

Important

Explanation:

Other Questions
Please write in 4-6 sentences Describing Cause and Effect Select the question mark. Choose the cause that brings about the effect. option a: the chicks hide in tall grass. b: not much grass grows on the nesting grounds. c: the chicks parents bring him good. d: the gray chick hatches. Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). uhmmm helppppppp pls lol someone help me please :D ill give brainliest and 32 points :)) the US Constitution can be amended by a vote of __ in the congress and a vote __ by the states explain why this sentence is important using your own words. We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness. can someone help me. they have to say yes or no and restate the question and use complete sentences?? Give an example of display behavior exhibited by a territorial animal. agine that you are just outside the International Space Station (ISS) orbiting Earth, working in space. You brought your speaker with you so you could listen to some music while you work. You find the right song, and you hit play. What do you hear? Write your response below in complete sentences. 3) Include the answers to these questions in your response: Would you hear your music? Why or why not? EquationGraphy = 2x +y=-*x+2y = 20 - 3y = 3x - 2 Jason woke up to the sound of his mother calling his name. He looked over at his alarm clock and sat up with a jolt. It was 7:55. Not again! he ((groaned.)) His bus was going to be there in five minutes! Jason jumped out of bed, threw on his clothes, and ran down the stairs with only a minute to spare before his bus was due to arrive. He was about to walk out the door when he realized that he had forgotten his homework. As he ran back up the stairs, he heard the sound of his bus as it drove away without him.1. Which of the following is the conflict that most clearly drives the action in this paragraph? *a. a conflict between Jason and his motherb. a conflict between Jason and his alarm clockc. a conflict between Jasons habit of waking up late and his desire to make the busd. a conflict between Jasons desire to do well in school and his desire to sleep The additive inverse of [tex]a-b[/tex] is:A. a + bB. -a + bC. -a - bD. [tex]1/a-b[/tex] ROOMWrite an equation in function notation for each situation.1. The admission fee to a local carnival is $8. Each ride costs$1.502. Steven buys lettuce that costs $1.69/1b.3. An amusement park charges a $6.00 parking fee plus $29.99per person.4. A math tutor charges $35 per hour5. A fitness center charges a $100 initiation fee plus $40 permonth PLEASE HELP! WILL MARK AS BRAINLIEST!JavaScript can be implemented using the _________ HTML tags in a web page. Which three words and phrases in the passage indicate tone? ""all that glass"" ""clean everything"" ""something extremely important"" ""something else weird"" ""What the?"". what does it mean when we say a gene is turned off? If the momentum of the NASA space shuttle as it leaves the atmosphere is 3.75 x 10^8 kg m/s and its mass is 75000 kg, what is its speed? Determine whether the inverse of F(x) is a function. fy the sequences of transformations based on whether or not they prove the congruency of the shapes by mapping shape I ont a reflection across the y-axis, followed by a 90 clockwise rotation about the origin, and then a translation left 18 units a 90 clockwise rotation about the origin and then a translation left 18 units a 90 counterclockwise rotation about the origin, followed by a reflection across the y-axis, and then a translation left 18 units a 90 clockwise rotation about the origin, followed by a reflection across the y-axis, and then a translation right 2 units a 180 rotation about the origin, followed by a reflection across the y-axis, and then a 90 clockwise rotation about the origin a reflection across the y-axis, followed by a 90 counterclockwise rotation about the origin, and then a translation right 2 units Maps Shape I onto Shape II Does not Map Shape l onto Shape II