Answer:
Starch is a indicator in the iodometric titration and it turns deep dark blue when iodine is present in a solution. The starch under warming condition forms amylose and amyl pectin's which combine with iodine to produce dark blue color. In absence of iodide ion starch indicator is colorless.
Explanation:
Starch is a viable indicator in the titration process because it turns deep dark blue when iodine is present in a solution. When starch is heated in water, decomposition occurs and beta-amylose is produced. Beta-amylose combines with iodine, resulting in a dark blue color change. The iodine-starch test is a chemical reaction that is used to test for the presence of starch or for iodine. The combination of starch and iodine is intensely "blue-black". The interaction between starch and triiodide is the basis for iodometry. In an iodometric titration, a starch solution is used as an indicator since it can absorb the I2 that is released. This absorption will cause the solution to change its color from deep blue to light yellow when titrated with standardized thiosulfate solution. This indicates the end point of the titration. Aside from their basic nutritional uses, starches are used in brewing and as thickening agents in baked goods and confections. Starch is used in paper manufacturing to increase the strength of paper and is also used in the surface sizing of paper. When starch is heated in water, various decomposition products are formed, among which is beta-amylose which forms a deep blue-black complex with iodine. The starch indicator solution must be freshly prepared since it will decompose and its sensitivity is decreased.
what dose the term equine mean
Answer:
Equine is a horse or a member of the horse family ; relating to a horse
Answer:
Equine, equine is the whole breed it comes from I think the term of the sientific name Equus caballus just a modernized version
Explanation:
How do you know your cell's are working?
Answer:
well your cells keep u alive kind
Human blood's pH is 7.4. What kind of drinks are safe for us.
*
Highly Acidic
Neutral or close to neutral
O Highly Basic
pH O, PH1, PH13, and pH14
At room temperature, more than half of the nonmetal elements are _____.
A.alloys
B.solids
C.gases
Answer:
C
Explanation:
Predict :What do you think the offspring of a red chicken and a white chicken will look like?
Answer: I predict that if they follow a dominant/recessive inheritance pattern, they will most likely be red.
Hope this helps!! :D
Answer:
I predict that if they follow a dominant/recessive inheritance pattern, they will most likely be red.
Explanation:
IN AN ARCTIC ENVIRONMENT, A POLAR BEAR POPULATION WILL INCREASE AS A BLACK
BEAR POPULATION
Answer:
NO
Explanation:
Answer:
Decrease
Explanation:
Black bears are not well evolved to survive in arctic temperatures like polar bear are so the population of black bears in that area would probably decrease until it is wiped out because they can't survive there.
What might happen to a cell if its cell membrane fails to function properly?
Answer:
If cell membrane fails to function then the cell will not be able to perform its task properly. The organelles will stop working which means no more protein created, no more energy production in the mitochondria and no material comes in and out of the cell. Eventually the cell will die.
Your welcome
Answer:
If the cell membrane is unable to do its job properly, this can cause the cell to stop working properly. If many cells have bad cell membranes, the disease can affect an entire organ or even the whole body. In many of these cell membrane diseases, proteins within the cell membrane don't transport materials properly.
Explanation:
Identify the defining characteristics of animals
Answer:
what it eats where it lives prey
I NEED HELPPPPPPPP DUEEEEE NOWWWWWWW 15 POINTS
Answer:
I believe that it would be C
Explanation:
pls let me know if I'm incorrect
Answer:
C. Is the correct answer is believe.
Choose the answer that best describes the order of the life cycle of a large star.
•gas clouds, star ignites, hydrogen depleted, red supergiant, super nova, neutron star
•gas clouds, star ignites, neutron star, hydrogen depleted, red giant supernova
•gas clouds, nuclear reaction, hydrogen depleted, red giant white dwarf
Answer:
I think its A gas clouds, star ignites, hydrogen depleted, red super giant, super nova, neutron star
Explanation:
Its Not gas clouds, nuclear reaction, hydrogen depleted, red giant white dwarf that is the wrong answer
PLEASE HELP QUICKLY ;-;
50 points and brainliest for first correct answer please help I'm desperate lol
If you are reading this then congratulations I’m wasting your time and you could be doing school. But it’s weird since I’m constructing this sentence other then doing school your thinking that I’m a hypocrite. I am. And I wasted even more of your time is your reading the last word of this sentence.
tooru oikawa's favorite food is milk bread, and his personal motto is "if you're gonna hit it, then hit it 'till it breaks?!"
which statement best describes the role of the plasma membrane in osmosis?
please help me
Answer:
The first statement
Explanation:
Osmosis is the transfer of water molecules from a low concentration to a higher concentration through a partially permeable membrane
The partially permeable membrane only allows water molecules to pass through
Therefore, the first statement best describes osmosis
What molecule contains the most energy ?
Answer:ATP
Adenosine 5'-triphosphate, or ATP, is the most abundant energy carrier molecule in cells. This molecule is made of a nitrogen base (adenine), a ribose sugar, and three phosphate groups. The word adenosine refers to the adenine plus the ribose sugar.
Explanation:
Cytoplasm is liquid that keeps the cell _________.
A: moving
B: airy
C: solid
Answer:
I think the cytoplasm keeps the cell solid.
Explanation:
Cytoplasm keeps all the cellular organelles suspended. The cytoplasm helps to keep them in place. It is also the site of most metabolic activities in the cell, and it allows materials to pass easily throughout the cell.
The cytoplasm is the liquid that keeps the cell solid. The correct option is C.
What is cytoplasm?
The cytoplasm is a liquid that is filled inside the cell. Between the cell membrane and the nucleus, there is a jelly-like fluid called cytoplasm. It facilitates material exchange and storage among cell organelles.
Cytoplasm helps the cell to stay still and rigid. It places all the cell organelle into a fixed place and the transfer of ions and molecules is also done by the cytoplasm. It is made up of water, salts, and other various material.
They help in the coming in of the materials and going out of the materials. They also protect the cell from shock and other invasive, they make the cell rigid and flexible and also protect recall from each other.
Thus, the correct option is C. solid.
To learn more about cytoplasm, refer to the below link:
https://brainly.com/question/13841988
#SPJ2
When did the first multicellular organisms appear?
600 million years ago
Macroscopic multi-cellular life had been dated to around 600 million years ago, but new fossils suggest that centimeters-long multi-cellular organisms existed as early as 1.56 billion years ago
Answer:
proterozoic period
Explanation:
300 million years ago
Viruses exist on a microscopic scale
True
False
Answer:
True
Taking a look at viruses under the microscope. Unlike other unicellular organisms like bacteria, viruses are commonly referred to as particles rather than cells.
Which of these are MOST involved in exchanging gases?
1 point
heart
bladder
lungs
pituitary gland
lymph nodes
write any two disvantages of local units
Answer:
1.it will run only at that particular local place.
2.the people of other places would not be able to understand those units system
Usually, an egg cell from a human female contains_________________.
Like a sperm cell, the egg contains a nucleus with half the number of chromosomes as other body cells.
(hope this helps ^^)
why is earthquake prediction a challenge for scientists
Answer:
Reliable predictions require precursors – some kind of signal in the earth that indicates a big quake is on the way. The signal has to happen only before large earthquakes and it has to occur before all big quakes.
Explanation:
Answer:
Plato: Currently, we can’t predict earthquakes. We can only measure their magnitude and location at the time that they occur. The equipment to measure earthquakes needs to be buried deep underground and is very expensive. Scientists haven’t developed an earthquake warning system yet because earthquakes give little warning. So there is no reliable way to predict when an earthquake will hit.
Explanation:
According to the cell theory, which describes cells?
A.) all organisms are composed of multiple cells
B.) all cells have the same structure and function
C.) cells are found in everything on earth
D.) all living cells come from other living cells
Answer:
I believe its D i may be incorrect though.
Explanation:
Answer:
D is right Thanks
Explanation:
Larger lions have 15,000 kcal on average to expend per day and need to gain more than that to survive. If lions can only hunt less than 3 times per day, explain how lions obtain food with the lowest cost and greatest energy benefit.
Answer:
Wildebeest and Zebra.
Explanation:
Wildebeest and Zebra are the hunts which gives huge amount of energy and lowest cost of energy because Wildebeest gives 25000 available energy and 10000 energy cost to hunt and 15000 amount of energy remain while Zebra gives 170,000 while 55000 energy spend on the cost to hunt and 115000 is available energy to the lion that is enough for the lion per day energy requirements.
need rn!!
What is the transportation system of the cell?
- Golgi bodies
- lysosomes
- endoplasmic reticulum
- ribosomes
A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.
Explanation: it processes and packages proteins and lipid molecules but i am not sure if it transport
Answer:
A Golgi body, also known as a Golgi apparatus, is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.
Explanation:
Light energy for the plant to use in making its food is trapped during ____ reactions.
a.
light-independent
c.
light-dependent
b.
glucose-dependent
d.
oxygen-dependent
Answer: c. light-dependent
Hope this helps!!! :)
Answer:
The answer is C. light-dependent
Explanation:
Edge 2021 + top comment !
I just need the percents of male and female for each age group! Please help if you can, I forgot how to do this.
Every body have a wonderful day
Answer:
Explanation:
i will but yo have one too
What is the main body system that regulates blood glucose levels? How does the human body return blood glucose levels to normal?
Answer:When blood sugar drops too low, the level of insulin declines and other cells in the pancreas release glucagon, which causes the liver to turn stored glycogen back into glucose and release it into the blood. This brings blood sugar levels back up to normal.
Explanation:
Its supposed to be a cell analogy, help please. :)
Answer:
well wich ever 1 looks like blonde is on it
Explanation:
Need help with this
Answer:
Respiratory Sir
Explanation: