Chemistry Middle School
Answers
Answer 1
The answer would be ammonium: NH4+ (C.)
Answer 2
C is the answer NH4+
Related Questions
HELP ME RIGHT NOW What type of particle has no electrical charge?
A. proton
B. neutron
C.electron
D. nucleus
Answers
The answer is B. neutrons have no charge
B. Neutron... electrons are negative and protons are positive... and the nucleus is where they all exist
All of the following are examples of physical properties EXCEPT •boiling point
•color
•size
•reaction with acid
Answers
Reaction with acid. That is a chemical reaction.
Answer:
Reaction with acid. That is a chemical reaction.
Explanation:
Based on its location in the periodic table, which of these is a property of nickel? A Low density
B Strong semi conductor
C Highly reactive with other elements
D Good conductor of heat and electricity
Answers
The answer is B.
It is of the iron group and it takes on a high polish. It is a fairly good conductor of heat and electricity.
The answer is B. stronger semi conductor
Electrons _____. A have a neutral charge
B are found in the nucleus
C are positively charged
D have a negative charge
Answers
D have a negative charge
The answer is D. have a negative charge
What is the product of water and pentyl ethanoate under the acidic conditions ?? A. Ethanoic acid and pentanol
B. Butanol and water
C. Ethanoic acid, two equivalents
D. Pentanol, two equivalents
Answers
I think it will be d
The answer is D. Pentanol, two equivalents
Which show how the properties of the two objects compare? A. temperature and total kinetic energy are different. B. Thermal energy and temperature are the same. C. Temperature and average kinetic energy are the same. D. Thermal energy and total kinetic energy are different.
Answers
A, i think, I'm not 100 on that
The answer isA. temperature and total kinetic energy are different.
Pizza is an example of a homogeneous mixture.
Answers
No its a example of heterogeneous mixture
How does a screw make the work of fastening two objects together easier? A. The screw changes the direction of a force - it converts linear force into rotational force. It also reduces the force required - the closer the threads, the larger the input force required to get the same output force. B. The screw changes the direction of a force - it converts rotational force into linear force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force. C. The screw changes the direction of a force - it converts rotational force into linear force. It also reduces the force required - the closer the threads, the larger the input force required to get the same output force. D. The screw changes the direction of a force - it converts linear force into rotational force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force.
Answers
D. The screw changes the direction of a force - it converts linear force into rotational force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force.
The answer isD. The screw changes the direction of a force - it converts linear force into rotational force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force.
If this pattern is annual, we would expect area D. to have the greatest extremes in average annual temperatures because A)of its closeness to Mexico. B)it is the southernmost location. C)there is the least atmospheric water present. D)the location is in the middle of the United States.
Answers
C, i think, not 100 percent though
The answer isC) there is the least atmospheric water present.
A disease-resistant variety of a sexually reproducing crop was planted on a field with an existing nonresistant variety. After a few years, pests severely attacked the plants. The older, nonresistant plants died. However, the recently grown plants survived. Why did the new plants survive?
Answers
The pests can’t attack the new plants.
Answer:
The new plants had the resistant gene.
Explanation:
Trust me I did the test and got it right.
Why are flowers important to plants?
Answers
Well, it all begins in theflower.Flowering plantshave several different parts that areimportantin pollination.Flowershave male parts called stamens that produce a sticky powder called pollen.Flowersalso have a female part called the pistil.
a solution in which 50 grams of solute is dissolved in 250 grams of solution has a concentration of what percent?
Answers
16.66667% or 17% to the nearest percent. (50/(250+50)) x 100 or (50/300) x 100. I hope you can see how I got to those numbers.
Solutions and colloids are similar in that both are suspensions true or false?
Answers
Answer:
False if you ask me But I can be wrong I am so sorry If I'm wrong.
Explanation:
When water freezes, how does the ice compare to the liquid water?
Answers
The ice has a larger volume than the liquid water.
Energy is transferred thru heat by each of the following methods EXCEPT? Convection
Thermalizing
Conduction
Radiation
Answers
It doesn't transfer through Thermalizing
Answer:
Thermalizing
Explanation:
Which is a characteristic of most nonpolar compounds?
Answers
Nonpolar compound would be symmetrical
Non polar compounds are symmetrical
9.If the musician hit the drum on a stage, how would the sound wave behave differently if he hit it the drum if the drum were submerged in a swimming pool? You may use pictures to help with your explanation. Be very thorough with your answer! If you use any sources other than your brain to help you with this question, be sure to list them!
Answers
For the answer to the question above, I think it would be yes because the drum is submerged in water and the water would slow the sound waves, making the sound softer. I hope my answer helped you.Feel free to ask more questions.Have a nice day!
TRUE OR FALSE cooling speeds up the motion of particles.
IF IT IS FALSE, EXPLAIN WHY.
Answers
False.
Heat speeds up the motion of particles when it is added to the object/substance the atoms loosen up and move/vibrate faster and more. But when subtracting heat from the object/substance, the atoms move/vibrate slower. This is called the Kinetic theory of matter.
Why is Helium considered a stable element
Answers
The lowest energy level is filled with its maximum number of electrons. This means Helium must be stable as this is an extremely stable arrangement. Helium is also a gas which hasfew chemical properties. Combining these two facts we can gather that Helium is stable.
Hope this helped. Have a great night!
Which term describes the motion of the planets around the sun
Answers
Orbiting or revolving could fit the term
Revolving; orbiting; circling
Other Questions
In which regions and countries did the Allies win major victories against Germany? From your reading of the "General Prologue," describe how Chaucer uses minute detail to flesh out the character of the knight. What inferences can be drawn from the description? Cite words from the excerpt to support your answer. You are painting the outside of a jewelry box, including the bottom. To find the surface area (S.A.) of the jewelry box, you can use the formula S.A. = 2wl + 2lh + 2wh , where l is the length, w is the width, and h is the height. What is the surface area of the jewelry box in terms of x ? 1.)Convection is the movement of matter that results from differences in density caused by variations in temperature. A True B False 2.)Which of the following types of geologic evidence could give a scientist information about the effects of an asteroid impact on Earth's surface? A ice cores that show gradual changes in the amount of carbon dioxide in Earth’s atmosphere over thousands of years B a world map showing the major volcanic eruptions of Earth's past C a set of petrified trees with tree rings showing several years of stunted growth D a set of fossils that show a steady rate of evolution in a certain type of organism 3.)Alternating quiet and violent eruptions are associated with which kind of volcano? A Shield B Composite C Pyroclastic D Cinder cone 4.)An earthquake's magnitude is the effect of the earthquake and how the earthquake is felt by people. A True B False 5.)Convection currents in the mantle contribute to tectonic plate movement. What is convection current? A the transfer of energy by direct contact B the transfer of energy from a region of lower temperature to a region of higher temperature C the transfer of energy by the movement of matter D the transfer of energy through a solid, such as the Earth's crust 6.) Long ago the eastern part of North America collided with the northern part of Africa during the formation of the supercontinent Pangaea. Later, the two continents separated as Pangaea broke apart. Which of the following describes what happened when the two continents collided? A Fault-block mountains formed as a result of compression. B Folded mountains formed as a result of compressional stress. C Fault-block mountains formed as a result of tension stress. D Folded mountains formed as a result of tension stress. 7.)A diamond is a valuable mineral that is made up of carbon atoms arranged in a repeating pattern. This repeating pattern gives diamonds their hardness. Which of the following characteristics do diamonds share with all minerals? A carbon atom composition B extreme hardness C rarity and high cost D orderly crystal structure What would happen if the sun broke away from the solar system and went out on its own? An explosion is an example of a(n) ___________ reaction How many grams of CuSO4 would be needed to make 150 mL of 0.300 M CuSO4 solution? Please help me with my Algebra question. The perimeter of a rectangle is 54cm.One side is X cm long and the other side is 6 cm longer. Form an equation involving X five friends share 3 bags of trail mix equally what fraction of a bag of trail mix dose each friend get What are some Reasons in favor of U.S. involvement in the Boxer Rebellion? Prokaryotic cell contain a nucleus true false How many m are in 300 mm EXPLAIN why a square could be identified as a rhombus In the short story, "The Unerring Instinct" ... 1. Why did Leonora play the practical joke on Belinda? 2. What method did the playwright use to show Belinda's feelings throughout the play? What group of people were forced to move into internment camps during World War II Eric is 6 1/6 feet tall and his brother is 5 3/4 feet tall. Eric is how many feet taller than his brother? A. feet B. feet C. feet D. feet How do we work do equations plz help me,thank you What purpose does the house in "The House of Usher" serve, particularly in paragraph 4? Ella purchased a game that was on sale for 12% off. The sales tax in her county is 6%. Let y represent the original price of the game. Write an expression that can be used to determine the final cost of the game. A. y − 0.12y B. 0.06(0.88y) C. 1.06(0.88y) D. y − 0.88y + 0.06y Choose the best wird or phrade to fill each blank. (50) She was in .........when she heard the tragic news a) crying b)tears c) cries d) tearful (51) He..........that he hadn't stolen the computer, but no one believed him. a) reassured b) informed c) insistef d) persuaded (52) Could you ............me that book for a couple of days? a) lend b) owe c) borrow d) rent (53) Greg is ..........a lot time at Yonne's house these days. a) taking b) spending c) heaving d) doing (43) What ............this weekend,Lance? a) will you do? b) are you doing c) will you have done d) do you do (44) The weather has been awfull. We've head very ...........sunshine this summer. a) little b) a little c) few d) a few (45) Dis toi hear what happened to Kate? SHE ......... . a) is arrested b) arrested c) has been arrested d) is being arrested (48) M'y sister ......... the cooking in our house. a) does b) makes c) cooks d) takes (42) John tells me Jack's going out with Helen, ............ I found hard to believe. a) which b) who c) whose d) that
FAQs
Is NH4+ a polyatomic ion? ›
“Ammonium is a polyatomic cation with a chemical formula NH4+. A cation is an electron-deficient species that carries a positive charge.
Is Na+ a polyatomic? ›Na (sodium) is a mono-atomic ion, while NH4 (ammonium) is a polyatomic ion as it has 5 atoms in total. Some more examples of polyatomic ions are carbonate(CO₃²⁻), hydroxide(OH-), phosphate (PO₃⁴⁻), hypochlorite (OCl-), etc.
Is o2 a polyatomic? ›Hydrogen, oxygen, nitrogen are diatomic molecules.
What polyatomic ion is o2? ›| Name | Formula |
|---|---|
| peroxide | O2 2− |
| cyanide | CN− |
| cyanate | OCN− |
| thiocyanate | SCN− |
| Common type I monatomic cations | |
|---|---|
| Magnesium | Mg2+ |
| Calcium | Ca2+ |
| Strontium | Sr2+ |
| Barium | Ba2+ |
| Formula | Name |
|---|---|
| NH4+ | Ammonium |
| OH- | Hydroxide |
| NO3- | Nitrate |
| NO2- | Nitrite |
A polyatomic ion is an ion composed of more than one atom. The ammonium ion consists of one nitrogen atom and four hydrogen atoms. Together, they comprise a single ion with a 1+ charge and a formula of NH+4. The carbonate ion consists of one carbon atom and three oxygen atoms, and carries an overall charge of 2−.
Which one is a polyatomic ion? ›Polyatomic ions are ions which consist of more than one atom. For example, nitrate ion, NO3-, contains one nitrogen atom and three oxygen atoms. The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit.
What is an example of a polyatomic ion? ›A polyatomic ion is a group of atoms carrying a charge (positive or negative). For example, nitrate ion (NO−3), hydroxide ion (OH - ).
Which ion is a polyatomic ion quizlet? ›Nitrate is a polyatomic ion with the molecular formula NO3 and a molecular mass of 62.0049 g/mol.
Is co2 a polyatomic ion? ›
definition. …than two atoms are termed polyatomic molecules, e.g., carbon dioxide (CO2) and water (H2O). Polymer molecules may contain many thousands of component atoms.
How do you find polyatomic ions? ›All the elements on the periodic table start with a capital letter and only some of them have a second letter that is lower case. So if you see two capital letters together in a ion then you will know that it is a polyatomic.
Is nh4ci a polyatomic ion? ›The chloride ion, Cl−, is a halogen that has a charge of one minus. When looking at the atoms of N and H, they form NH4+, which is a polyatomic ion known as the ammonium ion and has a charge of one plus in order to create a neutral compound.
What is in a polyatomic ion such as NH4+? ›In polyatomic ions, NH4+ is an example of heteronuclear ion. Heteronuclear ions are basically the ions which are formed of two different elements. For example, NH4+ (ammonium ion)
What are considered polyatomic ions? ›A polyatomic ion is an ion composed of more than one atom. The ammonium ion consists of one nitrogen atom and four hydrogen atoms. Together, they comprise a single ion with a 1+ charge and a formula of NH+4. The carbonate ion consists of one carbon atom and three oxygen atoms, and carries an overall charge of 2−.
What is NH4 polyatomic charge? ›The ammonium cation is a positively charged polyatomic ion with the chemical formula NH+4 or [NH 4] +. It is formed by the protonation of ammonia ( NH 3).