What are the extremely small particles that all elements are composed of?
compounds
molecules
atoms
mixtures
*WILL GIVE BRAINLISET* PLEASE ANSWER
Newton's second law of motion is F = ma.
A net force of 60 N north acts on an object with a mass of 30 kg. Use Newton's second law of motion to calculate the amount of acceleration the object will experience. Then explain how the amount of acceleration will change if the net force or the mass of the object increases.
Answer:
this was asked before here the screenshot
Jacinta is learning about the chemicals involved in breathing. Oxygen gas, water vapor, and carbon dioxide are all compounds formed by the chemical reactions between nonmetal elements. Which statement can Jacinta correctly make about the chemical properties of nonmetals?
A. Many nonmetals react with both metals and nonmetals.
B. Nonmetals are poor conductors of heat and electricity.
C. Many nonmetals are gases at room temperature.
D. Nonmetals react only with other nonmetals.
Answer:
it has to be B or A
Explanation:
I'm not doing this for the points I want the crown please so I hope this is correct I hope you have a great great great day and I hope you had this and get a good grade
What element has 42 neutrons
Answer:
arsenic
Explanation:
Answer:
Arsenic has 42 neutrons
Investigate and explain that when a force is applied to an object but it does not move, it is because another opposing force is being applied by something in the environment so that the forces are balanced.
The diagram below shows a box lying on a wedge. Two opposite forces are acting on the box. (1 point)
Force 1 acting downward and Force 2 acting upward on a square box lying on a wedge.
If the box is stationary, which of the following is true about force 1 and force 2?
1. Force 1 Force 2 Comparison of Forces
Gravity Friction Force 1 is stronger than Force 2
2. Force 1 Force 2 Comparison of Forces
Friction Gravity Force 2 is stronger than Force 1
3. Force 1 Force 2 Comparison of Forces
Gravity Friction Force 1 is equal to Force 2
4. Force 1 Force 2 Comparison of Forces
Friction Gravity Force 1 is equal to Force 2
Answer:
4. Force 1 Force 2 Comparison of Forces
Friction Gravity Force 1 is equal to Force 2
Explanation:
The graph below shows the motion of a car.
What is the average speed of the car between 0 and 8 seconds to the nearest hundredth in m/s?
identify the location of each element group on the periodic table.
Help me pls I don’t understand
Answer:
Organisms offspring
Explanation:
Key word is Inherits
Answer: B
Explanation: they always get it from there parents
Match the element to its oxidation number.
Sulfur
Answer:+6
Explanation:
The table below shows the role of different substances during photosynthesis.
Substance Role During Photosynthesis
Glucose Stores chemical energy
Water Combines with glucose to form carbon dioxide
Chlorophyll Traps sunlight
Which of the following statements would correct one of the roles listed in the table?
A.) Glucose combines with carbon to form water.
B.) Chlorophyll reacts with light to produce carbon dioxide.
C.) Water combines with carbon dioxide during photosynthesis.
D.) Chlorophyll stores chemical energy needed for photosynthesis.
Answer:
Which of the following statements would correct one of the roles listed in the table?
Chlorophyll absorbs the light needed for photosynthesis.
Took the test
Explanation:
hope to help
Which of the following elements is a poor conductor of heat and electricity?
A. Mg (12)
B. Ti (22)
C. F (9)
If a decrease in temperature accompanies a reaction, what occurred?
Energy was released.
Energy was absorbed.
Energy was destroyed.
Energy was created.
Answer:
Energy was absorbed
Explanation:
The smallest particle of an element is called a(n) _____.
mixture
atom
molecule
chemical
What do motor nerve cells do?
A. carry messages from cerebellum to cerebrum
B. carry messages from brain to the organs and tissues in the body
C. carry water to the well
D. send messages to the brain stem
Answer:
Motor neurons of the spinal cord are part of the central nervous system (CNS) and connect to muscles, glands and organs throughout the body. These neurons transmit impulses from the spinal cord to skeletal and smooth muscles (such as those in your stomach), and so directly control all of our muscle movements.
Explanation:
hope this helps :)
Which of the following statements is true?
A. A solution is a pure substance
B. A solution is a mixture
C. A solvent is dissolved in the solute
D. A solution has the same properties as a colloid
Answer:
c
Explanation:
How does a compound differ from a mixture?
The components of a mixture are in a fixed ratio
The components of a compound are in a fixed ratio
Answer:
In a mixture, each substance is still the same and don't really combine. In a compound, the substances are chemically combined (so the substances that went in have technically changed).
Explanation:
Select all of the elements that are classified as metals.
gold
helium
sodium
aluminum
sulfur
Answer:
Gold, sodium, aluminum
Explanation:
The metals are located on the left side of the periodic table
Gold,sodium,aluminum are the metals.
The periodic table's left side is where the metals are found.
Silvery-white and light in weight, aluminum is a metal.
Sodium is a soft metal that tarnishes when exposed to air in a matter of seconds
Which elements are metallic?
Iron.Uranium.Sodium.Aluminum.CalciumSilvery-white and light in weight, aluminum is a metal. It is supple and moldable. Cans, foil, culinary utensils, window frames, beer kegs, and airplane parts are just a few examples of the many goods that employ aluminum. This is as a result of its distinctive attributes.
Sodium is a soft metal that tarnishes when exposed to air in a matter of seconds. With water, it also reacts strongly. Sodium is employed as a reagent in the chemical industry and as a heat exchanger in some nuclear reactors. Salts of sodium, however, are more useful than the metal itself.
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Which following statements is true?
Electrons contribute most of the mass of an atom.
Electron placement determines an atom’s reactivity.
Proton location determines properties such as luster.
Neutrons determine whether an atom is liquid at room temperature.
Answer:
first one
Explanation:
hope this helps
What do sensory nerve cells do?
A. Carry messages from the brain to the body
B. Carry messages from the cerebrum to the cerebellum
C. Carry messages from the body to the brain
D. Carry water from the well
Answer:
body2brain
Explanation:
bru
Please help will mark brainliest!
Answer:
1. desert
2. grasslands
3. rainforest
4. tundra
5. temperate deciduous forest
6. coniferous forest
Explanation:
educated guess, good luck
The periodic table is organized left to right by __________.
Metals, nonmetals, metalloids
Metals, metalloids, nonmetals
Metalloids, nonmetals, metals
Nonmetals, metalloids, metals
Answer:
Metals, metalloids, non-metals
Explanation:
:)
PLS HELP 20 POINTS I WILL ALSO MARK BRAINLIEST
how does energy transfer through a system? Is all the energy conserved?
Answer:
Explanation:
The total change of energy in any system is always equal to the total energy transferred into or out of the system. This is called conservation of energy. ... Energy can also be transferred from place to place by electric currents. Heating is another process for transferring energy.
Does anyone know how to make this a longer sentence?
First you have to analyze your problem/question. After you research and collect data. Then you create a hypothesis and see if that might be the answer. Test your hypothesis then use that to come up with a conclusion.
Answer:
First, you have to analyze your problem or question. After you research and collect data about your topic, create a hypothesis to test to try and find the answer. After testing your hypothesis, come up with a conclusion based on the results.
What is the strongest reason Elbridge Gerry gave for not signing the Constitution?
Answer:
He antagonized nearly everyone by his inconsistency and, according to a colleague, "objected to everything he did not propose." At first an advocate of a strong central government, Gerry ultimately rejected and refused to sign the Constitution because it lacked a bill of rights and because he deemed it a threat to republicanism
Explanation:
Help me please really only answer if u know the answer
Answer:
Genetic matierial that is identical.
Explanation:
Because it produces new sets of chromosomes. This is biology btw. But you can never trust anyone on the internet.
Answer:
Explanation:
Asafahs
A student is studying the process of weathering and erosion by wind. The student takes down notes shown below:
W: Wind carries away worn down particles with it
X: Wind has small sand particles floating in it
Y: Sand particles rub against rocks, loosening up the rock particles
Z: Small rock particles wear down
What is the correct order of the process of weathering and erosion by wind?(1 point)
1. W → X → Y → Z
2. X → Z → Y → W
3. X → Y → Z → W
4. Z → Y → X → W
Answer:
3.
Explanation:
plz i need help please help
Owls, hawks, and eagles are types of raptors, animals which have hooked beaks and sharp claws, and are therefore adapted for seizing prey animals. Hawks and eagles differ from owls in that they eat their prey animals by tearing them into small pieces, picking out the flesh, and avoiding most of the fur and bones. They also have strong stomachs that can digest most of the bone material which they might eat. The relatively small amount of indigestible bone and fur that remain will be compacted by their stomach muscles into a pellet similar to the owls. Do you think an eagle pellet would be as useful for dissecting as an owl's? Why or why not? Explain your reasoning.
An eagle pellet wouldn't be as useful for dissection as an owl pellet. The pellet also contains the animal's bones and fur.
What is dissection?Dissection is the dissection of an animal or plant's body to examine the anatomical structure. In pathology along with forensic medicine, autopsy is used to identify the cause of human death. In biology or natural science classrooms under middle school as well as high school, less thorough dissections of plants or smaller animals stored with a formaldehyde solution are often carried out or displayed.
Medical students on medical schools perform in-depth dissections on adult and child cadavers, both fresh and preserved, as part of their instruction in topics including anatomy, pathology, and forensic medicine. As a result, dissection is frequently performed at an anatomy lab or a mortuary. An eagle pellet wouldn't be as useful for dissection as an owl pellet. The pellet also contains the animal's bones and fur.
Therefore, an eagle pellet wouldn't be as useful for dissection as an owl pellet. The pellet also contains the animal's bones and fur.
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Use at least three complete sentences to explain how global wind patterns such as the prevailing westerlies in the northern hemisphere would be impacted if the rotation of Earth stops.(5 points)
Answer:
If the Earth did not spin on its axis, the atmosphere would only circulate between the poles and the equator. And if this happens, the very same thing is bound to happen over again. That is, the atmosphere would only circulate in a back-and-forth pattern between the poles and the equator over and over.
Im not doing the math-