What happens to the reaction rate as the reactants get used up in a reaction?
O
A. The rate of the reaction is not affected by the concentration of
reactants.
B. The rate of the reaction increases steadily as products are formed.
O
O
O
C. The rate of the reaction begins to decrease as reactants are used
up
O
D. The rate of the reaction stays constant until the reactants are
gone.
Answers
The rate of the reaction depicts the speed at which the reaction occurs to produce the products. As the reactants get used up the reaction rate starts decreasing. Thus, option C is correct.
What are the factors affecting reaction rate?
The reaction rate of the chemical reaction gets affected by numerous factors that include temperature, the concentration of the reactants, catalyst, surface area, and physical state of the reactant.
The concentration of the reactant has a direct effect on the reaction rate as they are the deciding factor of the product formation. At the beginning of the reaction, the speed is fast compared to the end.
As the reactants start getting used up the reaction rate slows down as the molecules are not able to collide faster with other molecules to form the product.
Therefore, in option C. the reaction rate decreases with a decrease in concentration.
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Related Questions
Explain how the model you developed shows that when oxygen combines with hydrogen to form water, no atoms are left over from the reaction.
Enter Text
Answers
The making of any compound requires the joining of a different element with the help of various bonds, these bonds are as follows:-
Covalent bondIonic bondSigma bondAccording to the question, the atoms of oxygen and the hydrogen molecules joins together in their vacant space and join together with the help of a covalent bond.
The bond changes the physical state of the element and together they form a liquid which is water.
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What is an aquifer. e
Answers
Wikipedia › wiki › Aquifer
I hope this helps
Is the size of the country an important factor in how much helium that can be found there?
Answers
Brainless pls
Explanation:
Accordingly, any attempt to determine where the helium market will be more than a few years ... and/or recover helium can reduce the amount of helium consumed by as much as a factor ...
Answer:
Explanation:
Accordingly, any attempt to determine where the helium market will be more than a few years ... and/or recover helium can reduce the amount of helium consumed by as much as a factor..
Which statement about plants is the most accurate?
Group of answer choices
Plants undergo both photosynthesis and cellular respiration
Plants undergo neither photosynthesis nor cellular respiration.
Plants undergo photosynthesis but not cellular respiration.
Plants undergo cellular respiration but not photosynthesis.
Answers
1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL
Answers
To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.
Buying fruit and vegetables needs to be done more often as these types of foods can quickly go rotten. What could you do to slow down the chemical change of fruits and vegetables rotting? Give a reason to support your answer.
Answers
The process used to slow down the chemical change of fruits and vegetables is refrigeration.
What is refrigeration?Refrigeration is defined as the process of removing heat from an enclosed space and surface for the purpose of lowering the temperature.
It can also be defined as removal of unwanted heat from the selected object, substances or space and its transferred to another object or substance.
Keeping the fruits and vegetables in refrigerator will help to slow the growth of bacteria and slow down the rotting of fruits and vegetables.
Thus, the process used to slow down the chemical change of fruits and vegetables is refrigeration.
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Hiya! I need some help- This is about climate!
Make a claim about how the sun’s energy affects the climate of an area. Provide evidence with factors supporting your claim. Explain your reasoning.
Answers
Answer:
The sun's energy creates climate change in every area like in Australia the sun's energy caused all the fire's in Australia.
Explanation:
PLEASE HELP ME Research ten stars from the list below and create a completed chart like the example provided.
Write a conclusion based on the data you collected.
Assignment Directions
Choose ten stars from the list to research and classify using apparent magnitude, size (compared to our sun), distance from the Earth, star location (constellation), and color.
Sirius
Canopus
Vega
Alpha Centauri
Procyon
Beta Centauri
Achernar
Alpha Crucis
Capella
Altair.
Create a chart like the example below for the stars you chose. The star example will help you to better understand how to fill in the information.
To help you analyze your data and write a conclusion, answer the following questions in paragraph form.
Which of the 10 stars that you chose was the largest?
Which of the 10 stars that you chose was the brightest?
Which star(s) would you be able to see without the aid of a telescope? Give a reason for this.
Was there a connection between the size of a star and a star's magnitude? Give an example from your data to support your answer.
Name a different property other than the ones in the chart that can also be used to classify stars.
Submission Requirements
Upload the completed chart.
Write a conclusion paragraph based on the five questions.
Answers
Answer:
A glance at the night sky above Earth shows that some stars are much brighter than others. However, the brightness of a star depends on its composition and how far it is from the planet.
Astronomers define star brightness in terms of apparent magnitude — how bright the star appears from Earth — and absolute magnitude — how bright the star appears at a standard distance of 32.6 light-years, or 10 parsecs. (A light-year is the distance light travels in one year — about 6 trillion miles, or 10 trillion kilometers.) Astronomers also measure luminosity — the amount of energy (light) that a star emits from its surface.
Measuring star brightness is an ancient idea, but today astronomers use more precise tools to obtain the calculation. Specifically, they use the electromagnetic spectrum, focusing on the wavelengths visible to the human eyes. Every star has a distinctive spectrum of light, which to our eyes is rendered as a color.
Explanation:
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
Can somebody help me with this, please? Please Asap
Answers
Endoplasmic reticulum ⇒
classroom analogy: hallwaysfunction: passageway for proteins.Ribosomes ⇒
classroom analogy: cafeteriafunction: produces food for cellsMitochondria ⇒
classroom analogy: electrical boxfunction: supplies energy to the cellsVacuole ⇒
classroom analogy: thermosfunction: stores water and nutrients for cellsCytoplasm ⇒
classroom analogy: jello saladfunction: suspends cell organellesLysosomes ⇒
classroom analogy: trash cansfunction: collects and gets rid of waste What are the roles of organelles?Organelles are specialized structures within eukaryotic cells that perform specific functions. Each organelle has its own unique set of tasks that help the cell carry out its metabolic processes and maintain homeostasis.
Nucleus contains the cell's genetic material and acts as the control center for the cell, regulating gene expression and cell division. Mitochondria is responsible for generating the energy needed by the cell through cellular respiration. Endoplasmic reticulum (ER) is involved in the folding and modification of proteins, lipid synthesis, and the transport of molecules within the cell.
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Answer:
Endoplasmic reticulum ⇒
classroom analogy: hallways
function: passageway for proteins.
Ribosomes ⇒
classroom analogy: cafeteria
function: produces food for cells
Mitochondria ⇒
classroom analogy: electrical box
function: supplies energy to the cells
Vacuole ⇒
classroom analogy: thermos
function: stores water and nutrients for cells
Cytoplasm ⇒
classroom analogy: jello salad
function: suspends cell organelles
Lysosomes ⇒
classroom analogy: trash cans
function: collects and gets rid of waste
Explanation:
HELP ASAP!! An experiment is performed in which a crystalline substance is added to a beaker filled with room-temperature water. The following observations were made:
1. The crystals dissolve.
2. A precipitate forms.
3. The bottom of the beaker feels warm to the touch.
4. Bubbles begin to form in the water.
Which observations are evidence that a chemical reaction took place?
Answers
Answer:
observations (2), (3), and (4) provide strong evidence that a chemical reaction occurred.
Explanation:
Observations (2), (3), and (4) are evidence of a chemical reaction because a precipitate formed, energy was released (the bottom of the beaker felt warm), and bubbles were formed in the water. Observation (1) indicates a physical change, not a chemical reaction.
How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)
a. The atom’s volume increases.
b. The atom’s mass increases.
c. The atom becomes positively charged.
d. The atom becomes negatively charged.
Answers
c. The atom becomes positively charged
if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom
Answer ASAP
How do ethical concerns affect scientific research?
Answers
Answer:
Short answer is ethical concerns pose as limits.
Explanation:
As a scientist, one would want to research anything with limited possibilities. You would have to make sure however you're planning to test you hypothesis is safe for the environment (the people, the plants, the animals, and the earth in general)
Select the correct scientific notation form of this numeral using only 2 significant figures. 5,421,200.00 m
Answers
Answer:
5.4 × 10^6
Explanation:
Organisms in the abyss are very different from the surface organisms we live with. What factor listed below is NOT a reason for this?
A; Temperature is much lower in the abyss
B; Sunlight does not reach to the abyss
C; Organisms in the abyss are aliens
D; Pressure is very high in the abyss
Answers
Answer:
The answer is C
Explanation:
Good luck!
Answer:
llega al abismo C; Los organismos en el abismo son extraterrestres
Explanation:
A balloon is filled with 6.5 L of helium gas at 25oC and 1.0 atm. What volume will the balloon have when the temperature is lowered to -25oC and the pressure is increased to 1.5 atm?
Answers
honestly i have no clue. but u can
Match these items.
1. imprint of plant or animal
original-remains fossil
2. undecayed plant or animal part
carbonized fossil
3. replaced by a mineral
petrified fossil
4. only carbon remains
cleavage
5. mountain
geology
6. from magma
metamorphic
7. from physical and chemical changes
igneous
8. sandstone
print fossil
9. helps identify rocks
landform
10. science of Earth
sedimentary
Answers
1. print fossil
2. carbonized fossil
3. petrified fossil
4. cleavage
5. landform
6. igneous
7. metamorphic
8. print fossil
9. geology
10. sedimentary
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The print fossil, original-remains fossil, petrified fossil, carbonized fossil, landform, igneous, metamorphic, sedimentary, cleavage, and geology are the respective matches as given in the question.
Print fossil is imprint of plant or animal and basically known as fossil impression. Original-remains fossil comprises of the original tissues and parts of organism and undecayed plant or animal part. Petrified fossil is replaced by a mineral. Carbonized fossil is only carbon remains. Landform is a mountain. Igneous is from magma.
Metamorphic is from physical and chemical changes. Sedimentary rocks are sandstone. Cleavage helps to identify rocks. Geology is the study of science of earth.
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PLEASE HELP ME!!!!!!!!!!!!!!!!!! FILL IN THE BLANKS !!!25 POINTS AND BRAINLIEST
Answers
Answer:
help you with what I don't see anything
Answer:
free points thanks.
forgot pic
Explanation:
what is the relationship between the distance from an object and the strength of its gravity?
Answers
Answer:
the separation distance will weaken the gravitational force get weaker
Explanation:
separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.
(btw sorry if this was kinda hard to understand but I hope I helped!)
The frequency of a D-sharp sound wave in music is 380 Hz, and its wavelength is 0.95 m. What is the wave speed?
Answers
Answer:
462
Explanation:
Answer: I think is 380m wave speed
Explanation:
Someone help me with this ASAP!!
Answers
Answer:Heavy rainfall causes a landslide on the side of a mountain
Explanation: The hydrosphere is the water in the world. The geosphere is rocks and earth.
The three cyclists shown below are all traveling at a speed of 13 m/s, but only one cyclist has a changing velocity. The orange cyclist is on the curve, and the green and blue cyclist are on the straight away. Select the rider that has a changing velocity.
(btw the extra tab is to cover my info)
Answers
Speed is distance/time
Distance=length of path travelled not taking into account direction.
For example if you walk North 5 meters and walk south 6 meters
Then your change in position(displacement) is 1 meter south but your distance travelled is 11meters.
I know this is a terrible explanation and if you can't understand I can try to expand on it further.
The orange one is changing direction while the rest cyclists are increasing displacement.
What is Velocity?Velocity is defined as the directional motion of an object as an indication of the rate of change of position as observed from a particular frame of reference which is measured by a particular standard of time. Velocity is the vector quantity as it has both direction as well as direction.
Velocity is explained as the displacement/time where the displacement being the change in position. In the above given example, the orange color cyclist's position is not changing as he is changing direction.
Thus, the orange one is changing direction while the rest cyclists are increasing displacement.
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Which substance will form a solution with water? (Select all that apply.)
sugar
string
sand
salt
Answers
Answer:
Salt. Sugar.
Explanation:
When you combine both salt, sugar and water you have a new solution, Salt water, Sugar water.
String won't change anything about the water, and sand.
Answer: NaCl , AgNO3 , and KNO3
Explanation:
I need help with 23 and 24!
Answers
23 would be B.
24 would be B.
Answer:
23.
→ b.
24.
→ b.
explanation:
There are 2 main types of _______. One is a _______, where electrons are shared between atoms. The other is an _______, where one atom loses an electron to become a _______ charged ion, and the other atom gains the elctron to become a _________ charged ion.
Answers
Hello..!
There are 2 main types of ions one is an atom where the electrons are shared between the atoms. the other is an electron where one atom loses an electron to become a neutral in a charged ion, and the other atom gains the electron to become a charged lon anion.
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Ions with a positive charge are known as cations. Those that are negatively charged are called anions.
¿Doubts? in the comments Greetings.
The two main types of bonds formed between atoms are ionic bonds and covalent bonds. An ionic bond is formed when one atom accepts or donates one or more of its valence electrons to another atom. A covalent bond is formed when atoms share valence electrons.
when will hawaii collide with japan
Answers
PLEASE HELP ME WITH THIS IT'S DUE TOMORROW
Answers
Answer:
Both:
-They are both made up of cells embedded in an extracellular matrix. It is the nature of the matrix that defines the properties of these connective tissues.
Cartilage:
-Cartilage is thin, avascular, flexible and resistant to compressive forces.
-Cartilages are soft and flexible components present in ear, nose and joints.
Bone marrow:
-Bone is highly vascularised, and its calcified matrix makes it very strong.
-Bones are hard and tough which gives the structural framework of the skeleton in the body.
Choose the molecule with the strongest bond. A. CH_{4} B. H_{2}O C. NH_{3} D. HF E. All are equal
Answers
The strength of the bond is based on electronegativity difference between atoms ,larger the difference stronger is the bond.The strongest bond is that of HF.
An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms combine as per their electronegativity which gives bond different strengths.The electronegativity is largest between hydrogen and fluorine .Thus, HF has the strongest bond.
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Minerals must have atoms that are tightly packed together and cannot move freely. Which part of the definition of a mineral does this describe?(1 point)
Answers
Answer: soild
Explanation:
Answer: Solid state of matter
Explanation: Minerals have atoms that are tightly packed together and cannot move freely. This is a characteristic feature of solid matter where the atoms are tightly packed and they cannot move freely, has less space between them. Thus are rigid. The solid state is the most dense state of matter.
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7. Mateo and Jackie were on a playground rolling some different-sized balls to get them to crash. They used a tennis ball (the same mass) in both crashes. They tried two soccer balls—a pink one (more mass) for Crash 1 and a blue one (less mass) for Crash 2. Mateo and Jackie want to know what happened to the tennis ball. Use information from the diagram to answer. In which crash did the tennis ball experience a stronger force? How do you know?
Answers
Answer:
The answer is Crash 1, because the pink soccer ball had a greater amount of mass so it would expirence a stronger force.
Hope this helps! :)
Answer:
crash 1
Explanation:
Because crash one has a higher mass which will have a bigger force or hit because it weighs more
for example when i shoot an arrow harder then i shoot an arrow slower which will make it farther the arrow because i gave it more energy with more force