During a chemical reaction, a fixed amount of iron combines completely with a fixed amount of oxygen to form iron oxide. Which statement best describes the mass of the iron oxide that is produced?
The mass is equal to the mass of the iron plus the mass of the oxygen.
The mass is less than the mass of the iron but greater than the mass of the oxygen before reacting.
The mass is greater than the combined mass of both the iron and the oxygen.
The mass is equal to the mass of the iron minus the mass of the oxygen before reacting.
2. When Jesus resurrected, who did he appear to first?
3. What instruction did Jesus give his disciples before his ascension
Answer:
2. When Jesus resurrected, who did he appear to first?Mary Magdalene
9 Now when he was risen early on the first day of the week, he appeared first to Mary Magdalene, from whom he had cast out seven demons. 10 She went and told them that had been with him, as they mourned and wept.
3. What instruction did Jesus give his disciples before his ascensionAnd Jesus came and said to them, “All authority in heaven and on earth has been given to me. Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you.
Which type of soil consists of very fine (small) particles that make permeability of water
low (slow)?
Answer:
Its clay soil
Explanation:
__________
Look closely at cell x. Describe the cell (10 words minimum)
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Label plz
What makes African Literature unique?
Answer:
African literature consists of a body of work in different languages and various genres, ranging from oral literature to literature written in colonial languages (French, Portuguese, and English). ... As Africans became literate in their own languages, they often reacted against colonial repression in their writings.
Explanation:
How many protons does this atom have?
Are jellyfish,squid and starfish categorized of organisms with segmented body?
7. What might humans do to INCREASE the amount of nitrogen entering rivers and oceans?
or rivers
Answer:
Burning fossil fuels, application of nitrogen-based fertilizers, and other activities can dramatically increase the amount of biologically available nitrogen in an ecosystem. ... Much of the nitrogen applied to agricultural and urban areas ultimately enters rivers and nearshore coastal systems.
Explanation:
i hope it's help
Cells from different parts of an organism have varying
and
The study of the cell is called cell biology. There are two types of cells on the basis of the number and these are unicellular and multicellular.
The question is incomplete. kindly provide the full question so that we can able to assist you.
What is cell division?The formation of new cells from the preexisting cell is called cell divisionThe number of the chromosome may or may not be the same as compared to the parent cellHence, kindly provide the proper information.
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Explain how probability can be used to predict inherited traits.
Answer:
Probability can be used to calculate the likelihood that the offspring will be of a certain sex, or that the offspring will inherit a certain trait or disease if all outcomes are equally possible. It can also be used to calculate probabilities of traits in larger populations.
Explanation:
Are lilacs biotic or abiotic?
Which hypothesis is based on this research question
Answer:
I think it is D
Explanation:
I think the left side got more sunshine than the right side because the sun arise from East to west so left side are more larger than right side.
17. The type of microscope used in most science classes is the
microscope.
Answer:
compound light microscope
Explanation:
What are the two main forces that cause soil erosion?
plate tectonics and water
water and wind
plate tectonics and earthquakes
earthquakes and wind
Answer:
Water and Wind
Explanation:
Erosion is caused by water wind and ice.
description of shrubland biome
Answer:
The shrubland is a biome dominated by shrubs, with distinct seasons where one tends to be longer and drier while the other one tends to be shorter and wetter.
Explanation:
The shrubland is a biome that is mostly found as a transitional biome between the tropical and temperate biomes. This biome has a clear distinction between seasons. The summers are very hot and dry, experiencing prolonged drought, while the winters are mild to cool, and it is when most of the precipitation falls. This biome is exclusively terrestrial, thus it can only be found on land.
The landscape is dominated by shrubs. The shrubs tend to have needles and sharp leaves, and they are very well adapted to withstand high temperatures and prolonged drought. The animals too are well adapted to survive in dry conditions. Because this biome is suspectable to wildfires, the vast majorty of the animals use be it because of the manner in which they live or as a shelter.
The movement of water in a natural channel such as a creek, stream or river is known as which of the following?
Ebb and flow
Stream flow
Runoff
Seepage
Write a paragraph comparing the organelles in a cell to the organs in your body.
Which of the following are pictured below?
Image of a daughter cell containing two halves of a chromosome.
A. Spindle Fibers
B. Sister Chromatids
C. Nuclear Envelope
D. Homologous Chromosomes
Put the following list of words in order from largest to smallest according to the Organization of Organisms
1. Deer brain cells
2. Deer brain
3. Deer
4. Deer nervous system
5. Deer nerve tissue
Answer:
That list largest to smallest would be: Deer, Deer nervous system, Deer brain, Deer nerve tissue, and Deer brain cells
Explanation:
The Organization of Organisms from smallest to largest is: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.
Helen is studying the growth of two different types of plants. She planted two of
each type of plant in locations with different levels of sunlight: full sun, partial
shade, and full shade. For five weeks, Helen records the number of new leaves on
each plant. Which of the following statements correctly describes the
independent and dependent variables in Helen's experiment?
A: The independent variable is the amount of sunlight, and the dependent variable is the
number of new leaves.
B: The independent variable is the kind of plant, and the dependent variable is the
amount of sunlight
C: The independent variable is the amount of sunlight, and the dependent variable is the
kind of plant.
D: The independent variable is the number of new leaves, and the dependent variable is
the amount of sunlight.
Answer:
A) The independent variable is the amount of sunlight, and the dependent variable is the number of new leaves.
Explanation:
hope this helps! good luck!
Helen is studying the growth of two different types of plants. Sunlight is an independent variable as it varies and the number of new leaves is the dependent variable. Thus, Option A is correct.
What are the independent and dependent variables?The Independent variable is the variable that is changed in a scientific experiment. Temperature is an example of an independent variable.
The dependent variable depends on other variables. The amount of leaves that grow on the tree is determined by how much sun the plant is receiving. The amount of sunlight may vary, therefore, it is the independent variable and the number of new leaves is the dependent variable.
The amount of shade that is given is the independent variable. The intensity of sunlight may change day by day. The amount of leaves that grow on each plant is the dependent variable. Therefore, Option A is correct.
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Covalent bonds form when electrons are shared between valence shells
True or False
Answer:
The answer is True because
Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell.
PLS ANSWER PLS PLS PLS THIS IS MY LAST QUESTION ON MY TEST I GIVE BRAINLY
In the Andes Mountains, how does energy flow in an ecosystem that contains grasses and shrubs, pumas, and guanacos?
pumas to guanacos to grasses and shrubs
guanacos to grasses and shrubs to pumas
grasses and shrubs to guanacos to pumas
pumas to grasses and shrubs to guanacos
Answer:
grasses and shrubs to guanacos to pumas
Answer:
Grasses and shrubs to guanacos to pumas.
Explanation:
Its the order of the ecosystem.
Which of the following substances is the most acidic?
a substance that has a pH of 7
a substance that has a pH of 2
a substance that has a pH of 8
a substance that has a pH of 5
pH=-lg[H+]
from the formula of the pH you can deduct that the lower the pH the more hydrogen protons are released. The easier it is for a compound to release protons the more acidic it is. Therefore the correct answer is a substance that has a pH of 2
The substance with the lowest pH would be highly acidic. Therefore, the substance with pH 2 is the most acidic.
A pH scale is useful to express the concentration of hydronium ions on a logarithmic scale. The negative logarithm (with base 10) of the activity of the hydrogen ion (H+) is used to determine the pH of acids and bases.
The substance with pH 7 has a neutral pH according to the pH scale.
A substance with pH 8 is slightly basic, while a substance with pH 5 is slightly acidic.
Therefore, a substance with pH 2 is most acidic is the correct answer.
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Why does a cell need to copy its DNA before it divides?
A) so both new cell have enough DNA
B) so the sister chromatids don’t have to get separated
C) so it has a different set of instructions
Answer:
A
Explanation:
It can't be B because during mitosis, sister chromatids inevitably are separated. It can't be C because they are copied so they have the same instructions and know what to do. A is the best choice.
Answer:
the correct answer is a and the proper name for this process is called DNA replication thx so much
After studying the structure and function of the nucleus and chloroplast, a cell and the organelles can be perceived as a ________.
Answer:
"building block of life"
Explanation:
One complete cell carries out all the functions necessary to sustain life at the microscopic level. The nucleus gives out instructions for how the cell would operate, where the chloroplast is responsible for carrying out the process of photosynthesis in plants to make food.
The difference in the concentration of dissolved particles from one location to another is called a..,
Answer:
Concentration Gradient Hope it helps youWhich of the following statements is NOT true of photosynthesis?
Photosynthesis stores the energy from the Sun in molecules of sugar.
Photosynthesis captures and stores energy from the Sun.
Photosynthesis requires carbon dioxide and water.
Photosynthesis captures and uses energy from the Sun for daily activities.
Answer:
A
Explanation:
The statement 'photosynthesis requires carbon dioxide and water' IS NOT true.
Photosynthesis is a series of reactions by which plants and algae can produce sugars (e.g., glucose) by using the energy from the sun, oxygen and water.The photosynthetic reactions release carbon dioxide (CO2) as a byproduct, thereby CO2 is a product instead of a reactant.Photosynthesis has two main types of reactions: light-dependent reactions and light-independent reactions (i.e., the Calvin cycle).In conclusion, the statement 'photosynthesis requires carbon dioxide and water' IS NOT true.
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Bacteria which break down dead organisms into basic chemicals are called
I need the answer ASAP
Explanation:
Decomposers (fungi, bacteria, invertebrates such as worms and insects) have the ability to break down dead organisms into smaller particles and create new compounds. We use decomposers to restore the natural nutrient cycle through controlled composting.
Exam
When studying a population you are
studying the organisms of a single
species in what type of area(s)?
A. a designated area
B. multiple areas
C. random areas
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Answer:
B
Explanation:
just like that
Explanation:
you are study organism or species within that particular areas(designated areas)
which of the following taxonomic levels would contain organisms which are the most closely related to genetically
Answer:
species
Explanation:
Organisms that are the most closely related genetically would belong to the same species, which is the most specific taxonomic level.
What are taxonomic levels?Taxonomic levels are a hierarchical system of classification used to categorize and study the diversity of life based on shared characteristics and evolutionary history.
The taxonomic levels, in order from the most specific to the most general, are species, genus, family, order, class, phylum, kingdom, and domain. Each level represents a group of organisms that share a certain set of characteristics and a common ancestry. This system of classification allows scientists to understand the relationships and diversity of life on Earth.
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