Which of the following describe a chemical change? Select all that apply.
1. Only the physical appearance of a substance will change.
2. A chemical change alters the makeup of a substance.
3. It produces a new substance with different properties.
4. Chemical bonds must be broken and reformed for a chemical change.
select all that apply
Answer:
1
Explanation:
Chemical changes causes a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.
How can I conserve phosphorus in my community?
1
Which of the following statements about cellular respiration is true?
A Animals do not carry out cellular respiration.
B Cellular respiration is the process by which some living things take energy from the sun to make food.
C Oxygen is a product of cellular respiration.
D Oxygen is a reactant of cellular respiration.
Answer:
D
Explanation:
google cell respiration reaction
The statement which is true about Cellular respiration is as follows:
Oxygen is a reactant of cellular respiration.Thus, the correct option for this question is D.
What is Cellular respiration?Cellular respiration may be defined as a process through which organisms disintegrate the molecules of glucose in order to derive energy in form of ATP in the presence of oxygen.
The complete reaction of cellular respiration is as follows:
[tex]C_6H_1_2O_6+6O_2[/tex] → [tex]6CO_2+6H_2O+ENERGY.[/tex]This important reaction is carried out in the cell organelle known as mitochondria. This is because it is known as the powerhouse of the cell by the derivation of energy in the form of ATP. Although this chemical reaction is carried out in the presence of oxygen, it is known as aerobic respiration.
Therefore, oxygen is a reactant of cellular respiration is a statement which is true about Cellular respiration. Thus, the correct option for this question is D.
To learn more about Cellular respiration, refer to the link:
https://brainly.com/question/2809259
#SPJ6
Which of the following is the best description of the cane toad’s introduction to Australia?
a.
It was a successful biological control mechanism for cane beetles.
b.
It was a failed biological control mechanism for cane beetles.
c.
It was a successful method for reducing freshwater crocodile populations.
d.
It was a failed attempt to eradicate South American fire ants.
Answer:
b.......................
Answer: The correct answer if B)
B) it was a failed biological control mechanism for canned beetles
Explanation:
I just took the test
FAST IM GETTING TIMED BRAINLIEST
The following is an example of convection, conduction or radiation;The attic is really warm in the summer and the basement is cold
Conduction
Convection
Radiation
Answer:
The answer is Covection.
Explanation:
Convection current occurs where hot / warm air rises and cold air drops and replace it.
Answer:
I Would say Radiation.
Explanation:
The Attic is reciving radiation from the sun while the basement is not
(it could also be conduction, but im positive on radiation)
Ali has an unknown bottle of liquid and wants to test if the solution is acidic. What is the color of the litmus paper he should use?
pink, orange, gray or blue
Explain how traits are passed down in an organism, such as a dog.
Answer:
Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents.
How does the mean speed of the water molecules change as they are heated
The average speed of water molecules increases as they are heated, it is due to kinetic energy.
How does water molecule changes due to heating?When change in temperature, there is also a change in the kinetic energy of the molecule. If an increase in temperature, the kinetic energy also increases. Thus, the movement of water molecules increases as we heat it up.
If molecules are heated up, it changes the kinetic energy and increases the collision and diffusion rate of the molecule.
When any substance gets heated it gains thermal energy and if cooled it losses thermal energy. If a molecule gets kinetic energy or a water potential is higher than the concentration of water in a system.
Therefore, the mean speed of the water molecules increases as they are heated.
Learn more about water molecules, here:
https://brainly.com/question/28458730
#SPJ2
Contact lens solution is salty in order to match your tears. Contact lens solution is ______________ to the cells in your eyes.
Is it hypertonic, hypotonic, or isotonic solution
Answer:
Its isotonic
Explanation:
Because The contact lenses that we wear have been formulated to be isotonic, which means that they have the same osmotic pressure as the tear film in our eye.
Contact lens solution is salty in order to match your tears, which is isotonic to the cells in the eyes. The correct option is C.
What is isotonic solution?Isotonic solutions have the same osmolarity (or solute concentration) as other solutions.
Water will flow in equal parts out of each solution and into the other if these two solutions are separated by a semipermeable membrane.
Isotonic solutions are used to increase fluid volume due to blood loss, surgery, dehydration, and extracellular fluid loss.
The contact lenses we wear are isotonic, which means they have the same osmotic pressure as the tear film in our eye's layer of lubricant bathing the cornea and conjunctiva.
The ocular tissues and the water in the lens must maintain equilibrium.
Thus, the correct option is C.
For more details regarding isotonic solution, visit:
https://brainly.com/question/12126040
#SPJ2
Why does the earth have different layers?
Explanation:
because at is formed,the lighter part floats on the surface and the really heavy part (like iron and nickel in the core)sank to the middle
how can the amount of precipitation that falls be different all around the world
some places have areal climates resulting in less water conduction.
1. Conservation biologists studying cheetah populations have determined that the lack of genetic diversity among the cheetahs is due to genetic drift. Which statement explains the most likely consequence of having a low genetic diversity on the cheetah population?
A. The gene pool remains in equilibrium and future generations of cheetah offspring are stronger and better adapted to their environments.
B. The cheetah population becomes less likely to survive an outbreak of a disease or an environmental change, increasing the chance of species extinction.
C. The chances of mutations occurring in the cheetah population are decreased, increasing the cheetah survival rate.
D. Genetic variability is maintained from older cheetah populations that have survived and endured environmental stressors.
Answer: it’s B
Explanation:
Which of the following is NOT true of carbon?
A. It is present in all organic compounds.
B. It is a relatively small atom.
C. It will do anything to fill up its electron shell.
D. It can bond with multiple other atoms at once.
Anybody know?
Answer:
it is b
Explanation:
The characteristic which is not true of carbon is: B. It is a relatively small atom.
Carbon can be defined as a non-metallic and tetravalent chemical element represented with the chemical symbol C and it has an atomic number (number of protons) of six (6). This ultimately implies that, carbon is found in Group 6 of the periodic table because of its six (6) valence electrons, that are found in the outermost shell of its atomic nucleus.
Some of the characteristics of carbon include the following:
It has the ability to form a covalent bond with multiple other atoms at once.It is found in all organic compounds.It does anything to fill up its electron shell.It is a relatively large atom, which allows it bond with multiple other atoms.Read more carbon on here: https://brainly.com/question/19954749
Which of the following is NOT a true statement?
Prokaryotes are simple and eukaryotes are more complex
Prokaryotes have free-floating DNA and eukaryotes have DNA in a nucleus
Prokaryotes have a smaller nucleus and eukaryotes have a larger nucleus.
Prokaryotes have a smaller nucleus and eukaryotes have a larger nucleus.
Fill in the blank.
Animals and plants can both store glucose for later. Animals store it in the molecule ____, and plants store it in the molecule ____.
Answer:
animals store it in glycogen
plants store it in starch
What is protein pump?
IN YOUR OWN WORDS.
A group of tissues that join together for a particular function are known as:
A. Cell
B. Organ
C. Organism
D. Organelle
Answer:
Organ
Explanation:
Answer:
Organ
Explanation:
Which of the following is NOT a main component of an amino acid structure?
a. lone hydrogen
b. side R variant group
c. carboxyl group
d. phosphate group
e. amino group
The answer is D) phosphate group.
Amino structures do not have a phosphate group.
Hope this helped. :)
Surface area equals 4 pi r squared where r is the radius of a sphere and pi is a constant that is roughly equal to 3 using the sample approximation above calculate the surface area of a sphere with the radius of 2 m
Answer:
48m^2
Explanation:
im doing the same thing u are lol
Answer:
ya its 48
Explanation:
Im doing the same quiz
A student fills a small plastic bag with gelatin dessert and different colored beans and candies. Then the student seals the bag. One limitation of this model of a cell is that it cannot accurately show that a cell –
A has one nucleus and many organelles
B is able to change shape
C is enclosed within a flexible membrane
D can absorb nutrients.
Hurry Please! (In your own words)
What is the difference between passive transport and active transport?
Answer:
Active transport requires chemical energy because it is the movement of biochemicals from areas of lower concentration to areas of higher concentration. On the other hand, passive transport moves biochemicals from areas of high concentration to areas of low concentration; so it does not require energy
True or False: The nervous system can move muscles without us even
thinking about it.
order the milky way galaxy, sun, universe, local group, solar system from smallest to largest
Answer:
Sun - Solar system - Local group - Milky way galaxy - Universe
If my answer helped, kindly mark me as the brainliest!!
Thank You!
Answer:
sun
Explanation:
what do you mean my ageing
Which would describe a situation in which the Doppler effect is occurring? Sheila notices an increase in volume as an object approaches her. Brad hears an object increase in loudness as it is vibrated at its natural frequency. Judy notices an increase in intensity as an object is vibrated at its natural frequency. Damian hears a change in pitch as an object moves past him.
Answer:
Damian
Explanation:
The Doppler Effect is hard for me to put into words, but a common example is that when you stand still on the side of the road, you notice how the pitch of a fire engine's siren changes from when it's coming towards you vs driving away.
Answer:
Damian
Explanation:
Which statements are accurate about earthquakes that occur during the formation of a chain of islands and seamounts by a hotspot? Select the three correct answers.
- Earthquakes occur at the moment when a weathered island finally is under water again.
- Earthquakes occur when Earth’s crust bends under the weight of islands formed by the hotspot.
- Earthquakes occur along fault lines during plate movements.
- Earthquakes occur along fault lines within volcanoes formed by the hotspot.
- Earthquakes occur as part of the process of island weathering.
- Earthquakes occur at the moment when a volcano goes extinct.
Answer:
The following are accurate about earthquakes which occur during the formation of a chain of Islands and seamounts by hotspots:
- Earthquakes occur along fault lines within volcanoes formed by the hotspot.
- Earthquakes occur along fault lines during plate movements.
- Earthquakes occur when Earth’s crust bends under the weight of islands formed by the hotspot.
Explanation:
Which of the following is TRUE about Earth's plates?
forgot a pic cant help if ion have a visual
Photosynthesis uses solar energy, carbon dioxide, and water to release oxygen and to
produce energy-storing sugar molecules. ... The process of photosynthesis can be
represented by an equation, wherein carbon dioxide and water produce sugar and
oxygen using energy from sunlight.
Answer:
Its number 2
Explanation:
I did the test. Hope this helps have a good day.
The cells in the human heart work to make this muscle beat over 100,000 times each day. The cells in your kidneys remove
waste products and extra water from the body. Which cell organelles would you expect to be present in large quantities in
each cell type?
O A. Nuclei in the heart cell and mitochondria in the kidney cell
O
B. Vacuoles in the heart cell and chloroplasts in the kidney cell
O C. Lysosomes in the heart cell and mitochondria in the kidney cell
D. Mitochondria in the heart cells and lysosomes in the kidney cell
Answer:
B
Explanation:
Which choice names part of the lithosphere?
a. outer core
b. all of the mantle
c. inner core
d. crust and outer part of the mantle
please hurry this is worth a lot of points
Answer:
d
Explanation:
got one hundred percent on it
Answer:
D. crust and outer part of the mantle
Explanation:
k-12