Suppose you are given an unknown sample of a grayish,shiny metal,suggest two tests or measurements that would help you determine whether or not the metal is iron
Answers
Answer:
Explanation:
I hope this isn't too late.
The two tests or measurements that would help you determine whether or not the metal is iron are as follows:
Rusting through oxidation.Magnetization with the help of a magnet. What are the properties of Metal?The properties of the metal are as follows:
Metals are good conductors of heat and electricity.They are malleable, ductile, lustrous, and sonorous.They generally possess high densities, tensile strength, and high melting points. They are generally hard as compared to other elements.Rusting is a process through which an external layer of iron is exposed to a reddish brown appearance due to the reaction of iron and oxygen in the presence of water or atmospheric moisture.
Magnetization is a method that utilizes a magnet and tries to attract the iron. If it successfully attracts your sample, it is most probably an iron.
Therefore, it is well described above.
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Related Questions
Classification activity work sheet
Answers
Here you go, I hope this is the right one.
During a rainstorm, when atoms absorbed by soil from weathered sedimentary rock are washed into a nearby lake, some of the atoms come in contact with similar atoms from fertilizers and
detergents. An algal bloom results. Which cycle is described by this sequence of events?
Hydrologic cycle
Carbon cycle
Phosphorus cycle
Nitrogen cycle
Answers
Answer:
Phosphorus cycle
Explanation:
During the time of rainstorm, the atoms are absorbed by the soil for the sedimentary rocks and they are washed down towards a lake and when they come into contact with the similar atoms like those of the detergents and fertilizers they result in an algae bloom which describes the sequence of the phosphorus cycle.The fruit of trees is the only part that is used by humans for food.
Please select the best answer from the choices provided
ОТ
OF
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Answer:
True
Explanation:
We use other rparys of plants for equipment not food
Answer:
(FALSE)
Explanation:
edg 2021
how wide is a mouses skin cell
Answers
Answer:
15,00
Explanation:
the patch size was estimated to be 15,000 cells
do crocdiles lay eggs
Answers
Answer:
Yes, crocodiles lay eggs
Explanation:
Which of the following would be a result of eutrophication of a lake?
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Answer:
i believe it would be B
Explanation:
hope this helps :)
In organisms such as plants and mammals DNA is A) an atom
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Why do find more grazers in the prairie?
There are unlimited amount of water in the prairie.
There is more space in the prairie.
There is more sunlight available in the prairie.
The most abundant food source in the prairie is grass.
Answers
Answer:
The most abundant food source in the prairie is grass.
Explanation:
Which of the following might occur if people fail to conserve water?
a. increased sewage system failures
b. increased numbers of natural pollution filters
C.
increased water supply
d. increased wildlife habitats
Please select the best answer from the choices provided
A
оооо
Answers
Answer:
its A. Increased sewage system failures
Explanation:
When people fail to conserve water, the following will occur: increased sewage system failures, as in Option A, because water conservation should be done in order to get an equal amount of water everywhere..
What is the significance of the water loss?Water is the most important component of life because it is used in almost all processes, and animals and plants contain it for cellular structures, functions, and so on. When water is lost in a river or polluted, life forms suffer and water loss would lead to a shortage of water and a shortage of life forms as they become extinct, and that would lead to a disruption in the ecosystem.
Hence, when people fail to conserve water, the following will occur: increased sewage system failures, as in Option A, because water conservation should be done in order to get an equal amount of water everywhere.
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Question 1 (1 point)
Identify the body of water that is the LARGEST from the following list
a
Brook
b
Creek
C С
Stream
ОО
River
Answers
Answer:
River
Explanation:
River is the largest water body than others
Answer:
C
Explanation:
A piece of paper weighs 1.75 grams. You burn the piece of paper. From the piece of paper burning, there are three by-products
produced: ashes, water vapor, and carbon dioxide.
If you were to measure the mass of the ashes, water vapor, and carbon dioxide together, what would the
mass equal?
Your answer:
A.10 grams
B.1.75 grams minus the mass of the ashes
C.there is no mass
D.1.75 grams
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Nam the part of the alimentary canal where HCI is produced
Answers
Answer:
Parietal cells in the gastric glands in the stomach.
Explanation:
The main constituent of gastric acid is hydrochloric acid produced and that is roduced by parietal cells in the gastric glands in the stomach.
Khloe has harvested ten white daisies from her flower garden. They smell like perfume and each flower has five petals. The stems are eight inches long, green, and feel smooth.
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Complete question: 9. Read the statement below. Highlight the qualitative data and underline the quantitative data.
Khloe has harvested ten white daisies from her flower garden. They smell like perfume and each flower has five petals. The stems are eight inches long, green, and feel smooth.
Answer and Explanation:
Qualitative data: Refers to the quality of something, involving adjectives. Although this data is not numerical, it can be measured or described in different ways. Examples of qualitative data are a tall tree, short legs, long hair, big eyes, small ball, fat dog, bright light, dark room, among others. Quantitative data: Refers to a quantity. Things that can be measured, calculated, or counted. This data explains tendencies or results through numbers. Examples of quantitative data are the number of objects, meters long of something, kilometers away from somewhere, among others.In the exposed situation:
Qualitative data: white daisies, perfume-like smell, green and smooth stems. Quantitative data: ten daisies, five petals per flower, eight inches-longed stems.Simple carbohydrates are called ___________________.
Group of answer choices
Monosaccharides
starch
Polysaccharides
Disaccharides
Answers
Answer:
simple sugars
Explanation:
Monosaccharides is the answer
Explain 2 ways people can prevent further pollution of the ocean with plastic
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1.stop throwing garbage everywhere
2.help other people clean our environment
Answer: 1. Pick up trash after yourself
2. We can add more trash cans near beaches so people can have more places to put their trash in.
3. find any trash of the beach or close to the ocean and throw it in the trash
What is the mass of an atom with seven protons seven neutrons and eight electrons
Answers
Answer:
The atom is a nitrogen atom and the mass of the atom is 14.0067 u.
An atom with seven protons, seven neutrons, and eight electrons has a mass of 14 g.
What is an atom?Atoms are made up of protons, neutrons, and electrons. Each element has an atomic number that corresponds to the number of protons in its nucleus.
Given that,
Number of protons is 7.Number of neutrons is 7.Number of electrons is 8.The mass number of an atom is the sum of its atomic number and neutron number.
Mass number = number of neutron + atomic number
As the atomic number of an element will be equal to the number of protons of such elements, so in this case,
Mass number = 7 + 7Mass number = 14 gThus, the mass of an atom with seven protons, seven neutrons, and eight electrons is 14 g
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How do you state a hypothesis??
Answers
Why is the Hertzsprung-Russell (H-R) diagram an important tool
for astronomers? Select the best answer.
A: it helps them classify stars.
B: it helps them study the life cycle phases of stars.
C: both A and B
D: neither A nor B
Answers
They may group stars depending on brightness and temperature, which aids in the classification of stars. Thus, option A is correct.
What is Hertzsprung-Russell (H-R) diagram?An essential astronomy tool for comprehending how stars change over time is the H-R diagram.
HR diagrams are useful because they provide crucial details about the stars that are plotted on them.
Astronomers can estimate a number of significant stellar parameters, such as diameter, mass, age, and evolutionary stage, after creating an HR diagram for a collection of stars.
The graphic illustrates their relationships to or distinctions from similar stars. Scientists can forecast a star's evolutionary course and future energy output based on where it sits on the map.
Therefore, Hertzsprung-Russell (H-R) diagram an important tool
for astronomers to classify stars.
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Which of the following statements is true regarding Cells A and B?
Choose 1 answer:
Choose 1 answer:
(Choice A) Cell A is eukaryotic because it has DNA.
(Choice B) Neither Cell A and Cell B are eukaryotic because they have flagella.
(Choice C) Both Cell A and Cell B are eukaryotic because they have ribosomes.
(Choice D) Cell B is eukaryotic because it has a nucleus.
Answers
Answer:
(Choice D) Cell B is eukaryotic because it has a nucleus.
Explanation:
Cell B is unicellular euglena which is eukaryotic organism. While cell A is bacteria which is prokaryotic.
Examine the diagram of a cell. Which accurately labels the endoplasmic reticulum?
O W
O X
O Y
O Z
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Answer:
The answer is W
Explanation:
i took the unit test and got 100%
Answer:
it is w
Explanation:
I have a question if god was the first person on earth then who made god ?
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Answer:
God the farther he was just there the whole time
Explanation: I hope this help your guys
In 2016, atmospheric CO2 was at ______ ppm, and oceanic pH was at ______.
Answers
Answer:
400, 8.1
Explanation:
Co2 is known as carbon iv oxide. This type of gas isodorless and also colorless. It is usually present in the atmosphere. It is formed due to respiration. When carbon is exchanged between oceans, rocks and soils, In 2016 atmospheric CO2 was at 400 ppm,
While the amount of oceanic pH available was at 8.1
1.
The ages of 7 trumpet players in a band are 13, 12, 11, 12, 11, 10 and 12. What type of graph would
be appropriate for comparing the ages of these trumpet players?
What kind of bar graph would this be
A. Table B.pie/circle graph C .Bar graph D. line graph
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The graph that would be appropriate for comparing the ages of these trumpet players is the Bar graph. So, the correct option is C.
What is the Bar graph?A bar graph can be defined as a chart or a graphical representation of data, quantities, or numbers using bars or strips.
Bar graphs are used to compare things between different groups or to track changes over time. Pie charts can be used to show percentages of a whole and represent percentages at a set point in time. It does not reveal the changes over time. Line graphs are used to compare certain ups and downs at a specific pace.
Therefore, the graph that would be appropriate for comparing the ages of these trumpet players is the Bar graph.
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11. Which of the following compounds is formed when three fatty acids covalently bond to
a glycerol molecule?
A.
Protein
B.
Cellulose
C.
Glycogen
Triglyceride
D.
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Which features would you look for to classify a volcano? Select the three correct answers. (2 points)
height
steepness
color
type of lava
presence of foliage
age of rock
Answers
Height, steepness, and type of lava.
Just took the test and those answers are 100% correct.
Please mark Brainliest! :)
Height, Steepness and Type of Lava classify a volcano. So, the correct options are (A), (B) and (D).
What are Volcanoes?A volcano is an opening or rupture in the earth's surface which allows magma (hot liquid and semi-liquid rock), volcanic ash and gases to come out from there. When the tectonic plates come together or separate, they will occur. It can also occur in the middle of plates due to volcanic hotspots.
There are three types of Volcanoes-
Cinder Cone VolcanoesComposite Volcanoes (Stratovolcanoes)Shield Volcanoes1. Cinder Cone Volcanoes are the simplest type of volcano which occur when particles and blobs of lava are ejected from a volcanic vent.
2. Composite Volcanoes (Stratovolcanoes) have conduit system inside which channels magma from deep within the Earth to the surface.
3. Shield Volcanoes pours out of shield volcanoes is thin and it can travel for great distances down the shallow slopes of the volcano.
Thus, height, Steepness and Type of Lava classify a volcano. So, the correct options are (A), (B) and (D).
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What are the three forms of active transport?
Answers
Endocytosis, exocytosis, and cell membrane, are three forms of active transport.
What are the 3 key features of active transport?Active transport calls for a specialized carrier molecule, a protein, and cellular energy expenditure; transfer throughout membranes can therefore arise towards an attention gradient.
What are examples of active transport?Examples of energetic delivery include the transportation of sodium out of the cell and potassium into the mobile through the sodium-potassium pump. Active transport regularly takes area within the inner lining of the small intestine.
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what is a very long tube that the food passes into after it leaves the stomach? here the food is completely digested and then it’s absorbed through the walls into the bloodstream
Answers
Answer:
large intestine i think
Explanation:
7. What kind of mineral ID is this?
PLEASE HELP AND FAST!!DUE SOON
Answers
Answer:
Crystal Form and Mineral Habit
Explanation:
What are 3 examples of parasitism
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Answer:
Mosquitos, roundworms and ticks.
Explanation:
According to the cell theory where did this cell come from?
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Answer:
A another living cell
Explanation:
according to cell theory, all cells came from previous cells
