Answer:
Explanation:
Many common everyday services such as weather forecasting, remote sensing, satellite navigation systems, satellite television, and some long-distance communications systems critically rely on space infrastructure. ... Of the sciences, astronomy and Earth science benefit from space technology am in 6th grade btw
It was determined that Plan B would likely limit habitat disruption better than Plan A. State officials, however, decided to go with Plan A. Why did the state officials probably choose Plan A?
Answer: The economic demands of Plan B were too high.
Explanation: During the selection of any action plan to maintain biodiversity, several factors must be considered. These factors include the cost of the plan, the estimated effectiveness of the plan at protecting the targeted populations, and how the plan will affect both humans and other populations in the area.
The chart shows that the approximate cost of implementing Plan A was $5 billion. The approximate cost of implementing Plan B was $30 billion. While Plan B might have been more effective at reducing habitat destruction, and thus maintaining biodiversity, state officials likely chose Plan A over Plan B because the economic demands of Plan B were too high.
Answer: The economic demands of Plan B were too high.
Explanation:
just did it
What is an energy human eyes can detect?
A. light
B. mechanical
C. chemical
D. nuclear
Answer:
A. light
Explanation:
I know because with longer wavelengths than visible light, has been "invisible" to the human eye.
Number the steps in the correct order to show how ice changes into gas. __ The molecules gain enough kinetic energy to leave their solid form. __ The water becomes liquid and gets hotter. __ Ice is heated and the molecules speed up __ The molecules leave their liquid form and enter the air as a gas. __ Ice molecules vibrate in a fixed place.
Answer: Please find answer in explanation column
Explanation:
Numbering the steps in the correct order to show how ice changes into gas, we have that
1.Ice molecules vibrate in a fixed place.
2. Ice is heated and the molecules speed up
3. The molecules gain enough kinetic energy to leave their solid form.
4.The water becomes liquid and gets hotter.
5. The molecules leave their liquid form and enter the air as a gas.
Ice is the solid form of water which cannot freely move around in this form so it vibrates about its fixed position.When heated,its molecules acquire energy and its vibration speeds up causing it to overcome its binding forces (that makes it vibrate about a fixed position) and becomes mobile as it leaves its solid form to acquire a liquid state. With continuous heating, the liquid gets hotter making the molecules vibrate more rapidly, spread out and move freely at high speeds to form Water vapour - The gaseous state of water.
How many atoms are in 100g H2O ?
Answer:11
explain
: cause i think it is
During an experiment, four different elements were added to water and observed. Element C showed no reaction. The other three elements bubbled, with Element D bubbling with the greatest vigor and Element A bubbling the least. Which list orders the elements from least reactive with water to most reactive with water?
Answer:
In order most reactive to least reactive:
D
B
A
C
Explanation:
The reactivity series is depend on the element that reacts with the oxygen. The metal which replaces the other metal is a more reactive metal.
In the question, there are different metals and we have to find the reactivity series of the unknown metal
The series in decreasing order is as:- D > B > A > C.
In this reaction, the upper element replaces the lower elements because it is highly reactive.
Hence, the correct sequence is D > B > A > C.
For more information, refer to the link:-
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1. Which of the following
equalities is false?
A. 1 kilogram = 100 meters
B. 50 milliliters = 5 centiliters
C. 3 grams = 0.003 milligrams
D. 70 hectometers = 7,000 decimeters
why can the charge of the nucleus never be +8
Answer:
it could destroy the nucleus
Explanation:
due too much power going into it
How many neutrons are in potassium-50?
Explanation:
e 20 neutrones
Answer:
31 neutrons
Explanation:
Potassium has 19 protons (you can tell by the atomic number)
Potassium-50 is an isotope, meaning that there are a different amount of neutrons than normal.
Protons never change so subtract 50 from 19 to get the number of neutrons.
name the stages of the water cycle
Answer:
They are evaporation, condensation, precipitation and collection
REALLY NEED HELP. TAKING A TIMED TEST. 15 POINTS
Which portion of a molecule of F2O has partial positive charge?
Question 3 options:
A)
The partial charge on each atom is zero
B)
The central O atom
C)
The partial charge on each atom is negative
D)
The F atoms
A cold can of soda is taken out of the refrigerator. It slowly warms up until it is at room temperature. Once the soda has warms up, it has more thermal energy than it had in the refrigerator. Where did this additional thermal energy come from?
Answer:
See explanation
Explanation:
We know that the thermal energy of a substance largely depends on the temperature of the body. This implies that the hotter a substance is, the greater its thermal energy and vice versa.
When you bring a cold can of soda out of the refrigerator, the molecules of air at room temperature gradually loose energy to the can and condense around it. This transfers thermal energy from the air particles to the molecules in the cold can of soda and the soda warms up pretty soon!
Is painting the walls of a dollhouse red a chemical change or non chemical change?
Please help.
Answer:
it should be chemical
Explanation:
how will growing trees affect the levels of carbon dioxide in the atmosphere
Answer:
As trees grow, they help stop climate change by removing carbon dioxide from the air, storing carbon in the trees and soil, and releasing oxygen into the atmosphere. Trees provide many benefits to us, every day.
Thank chu if you answer
Answer: H
Explanation:
In a paragraph please explain how the reactivity of potassium has increased its
value. Be sure to discuss one chemical or product that is made from potassium,
it's benefit to humans and how it is made.
Answer:
Potassium is a very high reactive metal. Exposed to water, it explodes with a purple flame. Potassium is involved in the health of cells and of blood vessels, so its reactivity has increased values, being used by scientists for blood pressure as well as lethal injection, enough could cause your heart to stop. Take bananas for example, they contain potassium, enough for humans.
Explanation:
what is 208.813 reduced to two significant figures?
Answer:
208.81
Explanation:
i think this is the answer hope this helps
help, with both number 6 and 7, be sure of your answer please, first one to aanswer gets brainliest!
Answer:
6. Mutalism
7. Commensalism
Explanation:
6- Both species benefit = (mutualism).
7- Commensalism is an association between two organisms in which one benefits and the other derives neither benefit nor harm.
Answer:
6: C. Parasitism
7: B. Commensalism
Explanation:
6: Here the flea gets its nutrients from the mouse's blood and the flea benifits from the expense of the mouse.
7: Commensalism is a type of relationship between two living organisms in which one organism benefits from the other without harming it
Fill in the blank with the term that best completes each sentence. During the life cycle of a seedless plant, a sporophyte releases . When spores land, they grow into gametophytes. One gametophyte produces sperm cells that fertilize the cells of another gametophyte, forming a . This then grows into a sporophyte.
Answer:
spores
egg
zygote
Explanation:
i think this is right
Answer:
1) spores
2) egg
3) zygote
Explanation:
hope this helps :)
CuCl2 + NaNO3 -------> Cu(NO3)2 + NaCl
Answer:
what
Explanation:
Plsss help me I don’t know what to write plssss help
Answer:
To summarise, a parent cell divides by mitosis (doubling the DNA then splitting) and then divides again to have 4 daughter cells with all different DNA in and all with only half the amount of DNA as a normal body cell. This stage is meiosis. They make sperams and eggs which fuse together in fertilisation and once fertilised the cell will divide by mitosis to create embryos and further to grow into a fetus.
An element with atomic number 18 is a noble gas.Into which family you shall place elements with atomic number 17 and 19 and why?
Answer:
Explanation:
An element with atomic number 18 is a noble gas.
The element with atomic number 19 will have one extra electron so it can donate one electron or shed one electron to attain noble gas configuration .
It tends to shed one electron to become positively charged ion . Hence they are electro-positive elements .
Similarly the element with atomic number 17 will have one short electron so it can gain one electron to attain noble gas configuration .
They tend to gain one electron to become negatively charged ion . Hence they are electro-negative elements . They have high electronegativity .
What human actions contributed to the nutrient pollution of Lake Okeechobee?
PLZ HELP MEEEEEEEEEEEEEEEE I BEG YOU
Answer:
These trends were attributed to both the increased external loads and to a reduction in the lake sediment's ability to assimilate nutrients from the water column. The main sources of external nutrient inputs are animal waste and fertilizers applied to food and forage crops.
Why is oil so incredibly valuable as an energy source? What is exceptional about its energy density?
Answer:
Easy portability,easy convertability, high calorific value for its unit mass.
Explanation:
Oil is so incredibly valuable as an energy source as it has easy portability, easy convertibility, high calorific value for its unit mass.
What is oil?Any chemical compound that is nonpolar, predominantly hydrocarbon-based, hydrophobic, and lipophilic is considered to be an oil. Typically combustible and surface active, oils. Most oils are lipids which become liquid above room temperature and are unsaturated. Classes of chemical substances that may be unconnected in structure, characteristics, and usage are included in the general concept of oil.
They are employed in the production of numerous varieties of paints, plastic bottles, and various other products, as well as for usage as food (such as olive oil), fuel (such as heating oil), lubricant (such as motor oil), and medical uses. Some religious rituals and ceremonies employ specially formulated oils as cleansing elements. Oil is so incredibly valuable as an energy source as it has easy portability, easy convertibility, high calorific value for its unit mass.
Therefore, oil is so incredibly valuable as an energy source as it has easy portability, easy convertibility, high calorific value for its unit mass.
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balance the equations
Answer: a) [tex]H_3PO_4+3NaOH\rightarrow Na_3PO_4+3H_2O[/tex]
b) [tex]PCl_3+3H_2O\rightarrow P(OH)_3+3HCl[/tex]
c) [tex]2Al+3H_2SO_4\rightarrow Al_2(SO_4)_3+3H_2[/tex]
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side.
The balanced chemical equations are :
[tex]H_3PO_4+3NaOH\rightarrow Na_3PO_4+3H_2O[/tex]
[tex]PCl_3+3H_2O\rightarrow P(OH)_3+3HCl[/tex]
[tex]2Al+3H_2SO_4\rightarrow Al_2(SO_4)_3+3H_2[/tex]
when energy changes from one form to another (for example, chemical energy —> heat —> light) it is known as:
fossil fuel change
energy transformation
energy transfer
light & heat change
What is the total number of moles in 275 grams of Li2SO4?
Answer:
2.5 mol
Explanation:
How can you increase reaction rate in the forward direction? Chose all that
apply
Answer:
Sorry my task time about to run out : (
Explanation:
define a shadow plz help
Answer:
A shadow is that thing that follows you everywhere when the sun is out. It's creepy!
Explanation: Hope I helped!
Answer:
A shadow is a dark form that you cannot touch, hear, feel, or taste. It's simply formed when an object blocks a source of light.
I Need help ASAP plz
Answer:
1 Valence Electron
2 Proton
3 Neutron
4 Nucleus
Explanation:
im smart
How is temperature related to the physical change of a
substance?
Answer:
Temperature is a measure of the kinetic energy of particles in a substance. As temperature increases, the atoms or molecules in a substance gain energy.
Explanation: