Answer:
This question is incomplete, the complete part is as follows:
This equation is unbalanced. Which of the following is the correct balanced equation for this reaction?
A. 4Fe + 3O2 → 2Fe2O3
B. 3Fe + 4O2 → 2Fe2O3
C. 2Fe + 4O2 → 3Fe2O3
D. 3Fe + 3O2 → 4Fe2O3
E. 4Fe + 4O2 → 3Fe2O3
The answer is A. 4Fe + 3O2 → 2Fe2O3
Explanation:
This question involved a chemical reaction between iron element (Fe) and atmospheric oxygen (O2) to produce iron oxide. The equation is given as follows:
Fe + O2 → Fe2O3
However, this chemical equation is NOT balanced and not in accordance with the law of conservation of matter. To balance this equation, we have to make sure that the number of atoms of each element on the reactant side is equal to that on the product side. Hence, we use COEFFICIENTS. The balanced equation is given below;
4Fe + 3O2 → 2Fe2O3
Help please? 5 part punnett square bio assignment. 40 POINTS! oh and its due in an hour :P
why did you delete mt answer. also i did it for you just dont know how to send it
1. What parts of the world are expected to see the largest increase in people moving from rural (farming areas) to urban (city) areas?
NEED ASAP
I WILL BUT BRAINLIEST
Answer:
South
Explanation:
In the south
What is The abiotic (non-living) part of the Fennec foxes environment that this
adaptation (structural adaptation) helps the fox to survive ?
Answer:
Desert Adaptations Their nocturnal habits help them deal with the searing heat of the desert environment, and some physical adaptations help as well. Their distinctive, bat like ears radiate body heat and help keep the foxes cool.
Explanation:
Animal Adaptations and Survival ... Their large ears, which are usually 6 inches long (15 centimeters), help dissipate excess body heat on hot days in the desert. 2. The fennec fox seems to be the only carnivore living in the Sahara Desert able to ... Fennec foxes also have thick fur on the soles of their feet, which insulate ...
What are some of the detailed observations you will find under a cheek cell lab.
Include why you think you have found certain parts of the cell.
Answer:
Cheek cells are eukaryotic cells (cells that contain a nucleus and other organelles within enclosed in a membrane) that are easily shed from the mouth lining. It's therefore easy to obtain them for observation.
7. What is this enzymes optimum temperature?
Enzyme Activity vs. Temperature
a. 60 degrees Celsius
b. 30 degrees Celsius
c. 10 degrees Celsius
d. 40 degrees Celsius
Which of the following choices did Wegner give as evidence for continental drift?
a) Fit of continents, rock sequences, glacial evidence
b) Identical fossil species on different continents (both plant and animal), Antarctic climate changes
c) Sea-floor spreading, mid-ocean ridge, and trenches
d) a and b only
The Wegner effect is Fit of continents, rock sequences, glacial evidence, Identical fossil species on different continents (both plant and animal), Antarctic climate changes.
What is Wegner effect?Wagner's law, commonly referred to as the law of increasing[a] state activity states that public spending rises as GDP does. Adolph Wagner (1835–1917), a German economist, is credited with discovering it first in his own nation before noticing it in other nations.
According to Wagner's law, welfare states develop from free-market capitalism because as income rises, more people vote for social services.
Therefore, The Wegner effect is Fit of continents, rock sequences, glacial evidence, Identical fossil species on different continents (both plant and animal), Antarctic climate changes.
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pls help! past due
Which solution is hypotonic?
Which solution is hypertonic?
A) the inside of the cell
B) Neither
C) both
D) the beaker
Answer:
D I believe I could be wrong
Explanation: Hypertonic solution: A solution that contains more dissolved particles (such as salt and other electrolytes) than is found in normal cells and blood.
The material that a rubber ball is made of is different from the material that makes up something like a pool table ball because it allows the ball to bounce. What type of energy is in this material?
=
Answer:
h7rhocrbix rcrcrxineox rx ex e crc
rxnrikcjricrc
Explanation:
deibzienizjei xebiebsie is i3 she su 3u d4
Convert to scientific notation: 135,000
a. 1.35 x 10
b. 1.35 x10^2
c. 1.35
d. 1.35 x 10^5
Question 6 of 10
Imagine you are a detective examining a crime scene. You are trying to
identify the person who committed the crime, so you collect many samples at
the crime scene. Which sample would be most useful in identifying the
person who committed the crime?
A. Pieces of flooring from the crime scene
B. Drops of blood found at the crime scene
C. A watch and keys found at the crime scene
D. Plants growing at the crime scene
SUBMIT
The sample that would be most useful in identifying a person who committed the crime is drops of blood found at the crime scene. The correct option is B.
What is a crime scene?A crime scene is a term for the place or location where the crime has been committed. A crime scene contains physical evidence related to the crime, sometimes the body of the victim.
Drops of blood contain the DNA, a sample of blood would be a piece of good evidence to catch the criminal.
Thus, the correct option is B. Drops of blood found at the crime scene.
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Help me asap Question 26 of 30
A leech is a multicellular organism with a segmented body. It does not have
jaws or limbs. Which of the following organisms is a leech most likely to be
closely related to?
Amoeba Sponge
Earthworm
Salmon
Lizard
Kangaroo
Cat
Placental
Hair
Umbs
Jaws
Segmented Body
Multicellular
Unicellular
Common Ancestor
A. Earthworm
B. Amoeba
C. Sponge
D. Salmon
Answer:
I'm thinking an earthworm.
A leech is most likely to be closely related to Earthworms, as they both have segmented bodies and are multicellular organisms. The option is A.
What is leech?A leech is a multicellular organism with a segmented body and does not have jaws or limbs. The terms to consider in this question are: - Multicellular - Segmented Body - Common Ancestor Based on these characteristics, the leech is most closely related to: Earthworm.
Both leeches and earthworms are multicellular organisms with segmented bodies and share a common ancestor. They belong to the phylum Annelida, which consists of segmented worms.
The other options listed (Amoeba, Sponge, Salmon, Lizard, Kangaroo, Cat, Placental, Hair, Jaws, Unicellular, Common Ancestor) do not share these characteristics with leeches.
Therefore, the correct option is A.
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Is this correct? Brainliest involved a
Answer:
the answer B
Explanation:
When the moon orbits the Earth and the_____of the moon shines on the Earth we have a___eclipse.
Answer:
Shadow, an d total
Explanation:
1. Which individual(s) in the pedigree shown below must be a carrier?
a. 1 only
b. 4 only
.c. 3 only
d. both 1 and 4
In the autumn, many birds will collect seeds and then hide them in various caches throughout their habitat. The birds will guard their caches
from other birds, and move the caches if they start to dry out. These caches provide a food source for the birds during the water. What is an
ablotic factor that contributed to the evolution of this set of behaviors?
OA cold winter climate
OB competition with other birds for space
OC being preyed upon by larger birds
OD. limited food availability
Answer:
OA Cold winter climate
Explanation:
Other answers are biotic (living) factors, but cold winter climate is abiotic (non - living).
What is the era of the multicellular algae
Answer:
its the phanerozoic era
Question 4 (1 point) What vocabulary term is used when looking at the ratio for the genetic makeup of an organism?
two multipule choich questions
Answer:
B. Attach to a host cell
A.
Explanation:
One characteristic of an El Niño event is _____.
a. thermohaline circulation ceasing in the Pacific
b. formation of Antarctic Bottom Water ceasing
c. low atmospheric pressure intensifying over the eastern Pacific
d. downwelling occurring in the central Pacific
e. high atmospheric pressure intensifying over the eastern Pacific
Answer:
During an El Niño event, the surface waters in the central and eastern Pacific Ocean become significantly warmer than usual. ... It also reduces the upwelling of cooler, nutrient-rich waters from the deep—shutting down or reversing ocean currents along the equator and along the west coast of South and Central America.
Explanation:
please help , give me a good paragraph & ill give you extra points
Answer:
kinetic potential energy is turned into speed as it slides down the hill
the more kinetic energy the ball had the further it moved the cup
Explanation:
What is common to all cells?
Explanation:
Parts common to all cells are the plasma membrane, the cytoplasm, ribosomes, and genetic material.
The plasma membrane, cytoplasm, DNA, and ribosomes make up all cells.
What is a cell?Every living thing is made of smaller and smaller components called cells. There are trillions upon trillions of cells that make up the human body. They take in nutrients from meals, transform those nutrients into energy, and carry out specialized functions while doing so. They are responsible for giving structure for the body.
All cells have four parts:
A plasma membrane, which divides the inside of the cell from its surroundings; Cytoplasm, which is a jelly-like region within the cell that contains various biological components; DNA, which is the genetic material of the cell; and Ribosomes, the protein factory.Learn more about cells, here:
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How is a mean established?
Answer:
1 : to institute (something, such as a law) permanently by enactment or agreement. 2 obsolete : settle sense 7. 3a : to make firm or stable. b : to introduce and cause to grow and multiply establish grass on pasturelands.
the temperate continental region is regulated by air masses moving over the ocean. true or false
Answer:
False
Explanation:
Write your own example that includes Newton's three laws of motion. Be sure to make note of each law in your example.
Answer:
Newton´s third Law Ex: when you push against a wall its pushes back with the exact same force.
Newton´s second Law Ex: If you roll a big ball and a small ball, the small ball will have more accelration.
Newton´s First Law Ex: If a baseball is hit it wouldn´t stop unless another force stops it or obstruct it.
Explanation:
Hope This Helps :)
Which of these is a ball and stick model?
Ozone in the troposphere is a good thing.
True or false
Answer:
(False I think)
But in the troposphere, near ground-level, ozone molecules are both air pollutants, threatening the health of living things, and greenhouse gases, trapping heat and contributing to climate change. A small amount of ozone does occur naturally at ground level. Plants and soil release some.
Answer:
false i beileve. i hope this really helps !
Explanation:
HELP PLZ PLZ PLZZZZ I need help
Answer:
Ovulation happens every month for women of childbearing age. During this phase, the egg is released from one of the ovaries and travels from the fallopian tube to your uterus.
Look it up not only on brainly
PLEASE I NEED THIS I WILL MARK BRAINLIEST AND GIVE YOU 50 POINTS
Answer:
Du kannst ich bekomme nur die Kerze und ich werde dir die Kerze besorgen und ich spiele sein sein und und werde
Please answer ASAP
SERIOUS ANSWERS ONLY!!!!
Which of the following is NOT a benefit
of genetically modified foods?
A. pest-resistant crops
B. herbicide-resistant crops
C. plants that do not require water
Answer:
B
Explanation:
NEED HELP ASAP 15 POINTS
what does it mean, Genotypically and Phenotypically, to be a worrier or warrior
Answer:
genotypically The genetic makeup, as distinguished from the physical appearance, of an organism or a group of organisms. 2. The combination of alleles located on homologous chromosomes that determines a specific characteristic or trait.
phenotypically The physical appearance of an organism as distinguished from its genetic makeup. The phenotype of an organism depends on which genes are dominant and on the interaction between genes and environment.Explanation: