Answer:
7
Explanation:
An isotope is an atom that has a different number of neutrons than the standard for that atom.
1)Nitogen -14 has 7 protons in the nucleus for its an isotope of nitrogen which has an atomic number of 7.
2)Now we need to find the number of neutrons. This is implied in the name of the isotope whereby the protons and neutrons add up to its atomic number. So
(14-7 protons= 7 neutrons.)
So it has 7 neutrons.
7
I just did it on edgen :)
Which property is a chemical property of a substance?
reactivity
boiling point
melting point
color
Answer: reactivity
Explanation:
on the test
What idea, achievement, or life event is associated with Plato?
thought philosopher-kings should run the government
condemned to death by poison
tutored Alexander the Great
Please write an introduction for a SHE task of Fire-Stick Farming.
Fire stick Managing the environment through farming Aboriginal people routinely burned grass to minimise fuel and promote new growth in order to attract grazing animals for hunting.
Why is farming important?Among the various ways that agriculture has an impact on society are the provision of food, habitat, and employment opportunities; the provision of raw materials for food and other goods; and the development of robust economies through commerce.
Why is farming beneficial to the environment?A large number of species use pasture and crops as both a habitat and a source of food, making up around 50% of the planet's livable land. Sustainable management of agricultural operations has the potential to safeguard watersheds, restore significant habitats, and improve the quality of the soil and water supply.
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Q3. A bridge is built without expansion gaps.
Explain what could happen to the bridge if the temperature became:
a) much hotter than the day it was built.
b) much colder than the day it was built.
Please explain
Answer: b
Explanation:
Answer for points and brainliest!! :)
What is one way these stems help these cactus plants survive?
A. They take energy from sunlight.
B. They take minerals from soil.
C. They hold the plant in the ground.
D. They make seeds for reproduction.
Answer:
B.
Explanation:
A cactus stores water in its stem, which allows it to survive and thrive in desert-like environments. Its stem is made up of thick, spongy tissue that helps to absorb and retain large amounts of water. This stored water is then used to keep the cactus hydrated during times of drought and heat.
One of the major ways humans depend on marine plants is for which of the following?
A.) Production of oxygen
B.) Regulation of ocean temperature
C.) Increasing atmospheric carbon dioxide
D.) Maintaining the concentration of salt
Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Therefore, the correct option is option A.
What is matter?Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.
Matter is anything that is made up of atoms. Anything around us that can be physically seen and touched are matter. Ice, water and water vapors are example of matter.
So as we saw that matter has some mass so mass can be measured in gram only. Mass can also be represented as number of molecules. We also saw that matter occupy some volume and that volume is measured only in liter. Oxygen is the only thing for which humans depend on marine plants. Oxygen is very important for humans.
Therefore, the correct option is option A.
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Due in 15 mins pleaseeee helppp
Answer:
Explanation:
ffdsfsfsfsfsf
What are the first few items you should evaluate when reading a graph”?
Answer:
punctuation, and if it makes sense
Jane is a graphic designer who is hired by several different companies to create logos and marketing designs. As part of her final project, she makes sure to deliver images in several resolutions. Why is the resolution of an image important? Why would several different versions of the same image be needed? What would happen if a low-resolution image was used on a large poster? Explain your reasoning.
Answer: Which substances are released during cellular respiration?
Use complete sentences to explain how the mass of oxygen is conserved during cellular respiration.
Explanation:
Answer:Use complete sentences to explain how the mass of oxygen is conserved during cellular respiration.
Choose all the answers that apply.
Extinction can be caused by _____.
habitat destruction
natural disasters
disease
invasive species
The answer is all of the above
Answer:
All of above
Explanation:
There are still more like global warming, population over growth, and even overconsumption. But mainly habitat destruction, natural disasters, disease, and invasive species. Just remember that this are all naturally occurring ways of extinction.
What is causing the increasing amount of CO2 in the atmosphere? What could be done about it?
Develop models bonds can be placed on a scale that ranges from 100% ionic to 100% covalent. Use what you know about the types of bonds that specific elements tend to form to place each of the following compounds in the correct location on the scale: CO2, N2 , NaF, H2O
Answer:
Bonds can be placed on a scale that ranges from 100% ionic to 100% covalent.
CO2: CO2 is a covalent compound, with each carbon atom sharing electrons with two oxygen atoms. Therefore, it can be placed closer to the 100% covalent end of the scale.
N2: N2 is a covalent compound, with each nitrogen atom sharing electrons with another nitrogen atom. Therefore, it can be placed closer to the 100% covalent end of the scale.
NaF: NaF is an ionic compound, consisting of a sodium cation (Na+) and a fluoride anion (F-). Therefore, it can be placed closer to the 100% ionic end of the scale.
H2O: H2O is a polar covalent compound, with the hydrogen atoms sharing electrons with the oxygen atom, but the electrons are not shared equally, therefore the oxygen atom has a partial negative charge and hydrogen atoms have a partial positive charge. Therefore, it can be placed closer to the middle of the scale, between ionic and covalent.
Overall, the scale can be represented as follows:
100% Ionic <-------> NaF <-------> H2O <-------> CO2 <-------> N2 <-------> 100% Covalent
A restaurant advertises that it is environmentally friendly. It describes the solar panels it uses to generate electricity and the locally grown produce it serves. All the meals it offers are prepared over an open wood fire. Food is served on recycled copper plates, and drinks are served in recycled aluminum cups.
Which correctly lists three renewable resources used by the restaurant?
aluminum, copper, produce
copper, produce, sunlight
produce, sunlight, wood
sunlight, wood, aluminum
Answer:
produce, sunlight, wood
The renewable resources used by the restaurant are
produce, sunlight, wood
What are renewable resources?Renewable resources are resources which can be replenished after being used up.
Renewable resources include water, sun energy, wind, trees and animals.
The environmentally friendly restaurant will use things that would not cause environmental damage.
Based on what they use, three renewable resources used by the restaurant are solar energy, locally grown produce and wood.
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1. What is the formula for Chlorine? CL or CI?
2. What is the formula for hydrochloric acid? HCI or HCL?
Answer:
Formula of chlorine is Cl.
And formula of hydrochloric acid is HCl.
Hydrochloric acid is an inorganic chemical. It is a strong corrosive acid with a chemical formula HCl. It is also known as hydrogen chloride or muriatic acid.
Answer:
Explanation:
For Chlorine, it's Cl and for hydrochloric acid, it's HCl.
TIMED PLEASE HELP! Which is shown by the letter X?
trough
amplitude
crest
wavelength
Answer: crest
Explanation:
X is pointing to the peak of the wave. Hence, the answer is the third option: crest.
Answer:
The answer is crest
Explanation:
The highest surface part of a wave is called the crest
What role do bacteria play in healthy soil?
A. They help keep the soil loose enough for plant roots to grow.
B. They provide stability for the plants in the soil.
C. They hold tiny pockets of air so roots can breathe.
D. They help break down minerals in the soil into a form that plants can absorb.
Answer:
B I think
Explanation:
improved soil structure and soil aggregation, recycling of soil nutrients, and water recycling.
plz help on this,thank u
Answer:
It has a nucleus. In eukaryotic cells, the nucleus is present.
what is the volume of a marble that has a mass of 3.g and a Density of 2.7 g/ml ?
make sure to round to the nearest tenth
Answer:
1.111 or since you want me to round 1.1 if not right let me know please.
Explanation:
Answer:
1.1
Explanation:
all you have to do is divide the mass by density to get the volume yurr
Please help me por favor :'(
please help me 7th grade science
When a chemical reaction occurs, what happens to the atoms of the two substances? Provide an example from the Sim (on Amplify) as evidence to support your answer.
When a chemical reaction does not occur, what happens to the atoms of the two substances? Provide an example from Sim as evidence to support your answer.
Answer:
Explanation:A chemical response is a chemical transformation in which two chemicals combine to create a third component.
(i) Adding diluted acid to an active metal causes the test tube to heat up and hydrogen gas to escape, which results in the production of heat.
(ii) When diluted hydrochloric acid is added to silver nitrate, AgCl, a white precipitate, results.
(iii) When water is added to quicklime, the mixture boils and produces heat along with a hissing sound.
(iv) Thermal breakdown of mercury oxide - Mercury turns from red to a metallic silver tint as a result of this process.
3. A recent flood in the area has caused many short-term changes to
the ecosystem. Which is a long-term change?
A. Standing water in the streets and sewers
B. Temporary displacement of organisms
C. Permanent change in the landscape
D. Poor water quality in rivers and streams
Answer:
c
Explanation:
While standing water in the streets and sewers (option A) and poor water quality in rivers and streams (option D) may persist for some time after the flood, they are generally considered short-term changes as they can eventually be remedied through clean-up efforts and restoration programs.
Temporary displacement of organisms (option B) can also be considered a short-term change, as organisms will eventually return to their original habitats once conditions improve.
However, a permanent change in the landscape (option C) such as altered river channels, new water bodies, or changes in topography, can have lasting effects on the ecosystem and its inhabitants. These changes may alter habitat suitability, nutrient cycling, and water availability, which can impact the ecosystem for years or even decades to come.
Answer: C
Explanation:
The landscape could be flooded. Houses and buildings may be restricted.
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Answer:
umm sorry but some times do it your self
Explanation:
Answer:
its too much and the people that say download here and put bit . ly blah blah are fake.
Explanation:
What is the theoretical yield of oxygen when 29.2 g of water are decomposed by electrolysis according to the balanced equation: 2H2O yields 2H2 + O2
Taking into account the reaction stoichiometry, the theoretical yield of oxygen when 29.2 g of water are decomposed by electrolysis is 25.956 grams.
Reaction stoichiometryIn first place, the balanced reaction is:
2 H₂O → 2 H₂ + O₂
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
H₂O: 2 molesH₂: 2 molesO₂: 1 moleThe molar mass of the compounds is:
H₂O: 18 g/moleH₂: 2 g/moleO₂: 32 g/moleThen, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
H₂O: 2 moles ×18 g/mole= 36 gramsH₂: 2 moles ×2 g/mole= 4 gramsO₂: 1 mole ×32 g/mole= 32 gramsDefinition of theorical yieldThe theoretical yield is the amount of product acquired through the complete conversion of all reagents in the final product, that is, it is the maximum amount of product that could be formed from the given amounts of reagents.
Theorical yield of O₂The following rule of three can be applied: if by reaction stoichiometry 36 grams of water form 32 grams of oxygen, 29.2 grams of water form how much mass of oxygen?
\(mass of oxygen=\frac{29.2 grams of waterx32 grams of oxygen}{36 grams of water}\)
mass of oxygen= 25.956 grams
Finally, the theoretical yield of oxygen when 29.2 g of water are decomposed by electrolysis is 25.956 grams.
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A book on a table presses downward with a force equal to the upward force exerted by the table. This is an example of Newton's______ law of motion.
A.SECOND
B.FIRST
C.THIRD
Answer:
a
Explanation:
if i have 17 apples and i eat 17 apples how many pears do i have?
Answer:
If you eat all 17 apples, you will not have any apples left. However, the number of pears you have is not related to the number of apples you ate. So, the number of pears you have is unknown and not affected by the number of apples you ate.
Write the chemical symbol for the ion with 33 protons and 36 electrons.
200 milliliters is equal to:
Answer:
0.2 Litres
Explanation:
There are 1000 milliliters in a liter so 200 millimeters is equal to (200/1000) 0.2 litres.
Not quite sure what type of answer you were looking for but I hope this hoped anyway!
Answer:
O. 2 litres /200 cm³
Explanation:
Litre:200 divided by 1000 coz one litre is equal to 1000 millilitres and Inorder to convert between smaller to bigger units you divide. Cubic centimetre:because one cubic centimeter equals one millilitres therefore 200ml will be equal to 200cm³
What element has the most Protons/ Neutrons/ and electrons.
Answer:
gold
Explanation:
The Sun does not heat Earth evenly. Areas at different latitudes receive a varying amount of direct sunlight.
Would a city located at 70°N latitude have a warmer or colder climate? Why?
What happens to the atoms that make up hydrogen fuel as it burns?
Answer:
When hydrogen fuel burns, its atoms combine with oxygen atoms in the air, which creates a chemical reaction that releases energy in the form of heat and light. The hydrogen atoms lose their outermost electrons, becoming positively charged ions (protons). These ions combine with the oxygen atoms to form water molecules (H2O), which evaporate into the air as steam. Therefore, the atoms that make up hydrogen fuel ultimately become part of water molecules during the process of combustion.
Explanation: