Chemistry Middle School

What is the relationship between Potential energy and Kinetic energy in a system?
its not chemistry ik
i will mark

Answers

Answer 1
Potential is something than hasn’t moved but could. Kinetic is something already in motions.

Related Questions

How were the novae on Venus similar to the landforms in Gerya’s computer model?

Answers

Answer:

Explanation:

The model results matched the novae on Venus. This provided evidence that Gerya's idea that a thinner crust and higher surface temperature might allow melted rock to push up toward the surface, forming novae.

What is the chemical symbol for table salt?

Answers

Answer: NaCI

Explanation:

Answer: NaCl

Sodium chloride , commonly known as salt (although sea salt also contains other chemical salts), is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions.

What element is this? Ignore my answer choice.

Answers

Answer:

Aluminum

Explanation:

It is your choice because only aluminum has 13 protons

Answer:

yea its aluminum the 13 element because of its 13 protons

Which two models would be most useful in predicting weather?
A. A mathematical model based on data
B. A plastic model of a cloud
C. A map that shows wind patterns
D. A peach used to represent Earth

Answers

Answer:

A. A mathematical model based on data

A mathematical model based on data and a map that shows wind patterns   would be most useful in predicting weather as it they will provide data with most accuracy.

What is accuracy?

Accuracy in terms of chemistry can be defined as to how close a measurement is to the true value.There are three types of accuracy:

1) Point accuracy-It means accuracy is present at that point of scale only.It does not give any information about the accuracy of the instrument.

2)Percentage of true value--It is the accuracy  which is determined by identifying accuracy of the instrument  and comparing it with the measured true value.

3)Percentage of scale range- It is the accuracy  which determines accuracy of the measurement.

Accuracy in case of instruments  is neglected up  to ±0.5 percent.

Learn more about accuracy,here:

https://brainly.com/question/14244630

#SPJ2

235
92
U +
1
0
n →
90
36
Kr +
A
56
Ba + 3
1
0
n

Answers

Answer:

A= 143 B=146 C=56

Answer:

A: 143

B: 146

C: 56

Explanation:

Which statement correctly describes the location and charge of a proton in an atom? A. The protons are inside the nucleus with a negative charge. B. The protons are inside the nucleus with a positive charge C. The protons are outside the nucleus with a negative charge. D. The protons are outside the nucleus with a positive charge.

Answers

After looking at it, the answer is B

Answer:

The correct answer is B

Explanation:

As the toy car rolls away, it slows down. Why?

Answers

Answer:

Friction

Explanation:

Depending on the material the toy car rolls away on, the more friction is created, the more friction there is, the more on surface rubs against another, creating friction, slowing it down

hope this helps

The data table shows the number of pumpkin seeds that germinate at different temperatures. What is the median number of seeds that germinate at 32ºC?
A. 64
B. 65.5
C. 65
D. 66

Answers

Answer: I agree with the other person it's B

The answer is most likely B.

I need help ASAP! 10 points!

Answers

Answer:

The answer to this question is ( a )

Explanation:

ionic: transfer of electrons covalent: sharing of electrons

Which description of salt is a physical property?
A. No combustion
B. Makes ionic bonds
C. Product of mixing acids and bases
D. Solid does not conduct electricity

Answers

Answer: it was in the lesson, the answer is it is solid and does not conduct electricity

Explanation:

Physical Properties                                 Chemical Properties

White cubic crystals                                 Do not undergo combustion

Odorless, salty taste                                 Make ionic bonds easily

As solids, they do not conduct electricity  The product of mixing acids and bases

D. Solid does not conduct electricity
Probably

CO2(g) + NH3(g) + H2O(l) → NH4HCO3(s) witch type of reaction plzz within 1 hour

Answers

combination reaction

Please help me identify the element. The picture is blurry so..

Answers

Answer:

Explanation:

aluminium

Aluminum





Explanation

A student combined equal amounts of two solutions. One solution had a pH of 2 and the other had a pH of 12. Which would most likely be the resulting pH? 1 3 6 11

Answers

Answer:

6

Explanation:

Answer:

6

Explanation:

You are looking at two samples of iron. One sample is very small and came from the red soil on the planet Mars. The other sample is very large and came from Earth's core. True or False, these two samples contain different atoms

Answers

The two samples don’t contain different atoms so it will be false

Now, demonstrate a net force of 300 N to the right. How many ways can you do it?

Answers

Answer:

I've chose 5 ways to get there.

i think 4 or 5 not suree doe :)

In the early 1900s many scientists thought that an atom consisted of a positive substance with negative charges scattered throughout the substance. Then Ernest Rutherford made a discovery that led to the understanding that an atom consists mostly of empty space with- * 20 points A. protons orbiting a dense nucleus made of electrons and neutrons B. Neutrons and protons orbiting a cloud of electrons C. Electrons and protons orbiting a cloud of neutrons D. Electrons orbiting a dense nucleus made of protons and neutrons

Answers

The answer is D. (I think-)

Answer:

D(pretty sure)

Explanation:

Which statement is true about the model of the atom below? * 20 points Captionless Image A. Positively charged particles are found outside the center of the atom. B. Negatively and positively charged particles are found in the center of the atom. C. Neutral and positively charged particles are found in the center of the atom. D. Neutral particles are found outside the center of the atom.

Answers

The answer is C. The nucleus contains protons (positivity charged) and neutrons (no charge.)
ik im not answering ur question but just wanted to say nice pfp

Which subatomic particles change the mass number? (select all that apply) Protons Neutrons Electrons

Answers

protons and neutrons i think , sorry if i’m wrong.

Answer:

protons and neutrons pretty sure

Explanation:

Other Questions
Matthew and his 3 siblings are wedding a flower bed with an area of 9 square yards. If they shared the job equally,how much square yards of the flower bed will each child need to weed Help! Answer in box is wrong Use the text of the opinion piece, "What's for Lunch," and your completed graphic organizer to answer the question below. Include evidence from the article to support your answer. Do you think this author has an agenda? If so, what is it? If not, what is the purpose of her article? Does she achieve her purpose? HERE IS THE WHATS FOR LUNCH ARTICLEWhats for Lunch?Marcia Amidon LustedZachary Maxwell was tired of trying to explain to his parents why he wanted to bring lunch to school instead of eating hot lunch. They couldnt understand why he didnt want to eat the gourmet food described on the schools online menu, which sounded both nutritious and interesting. Zachary just couldnt convince them that the food wasnt as great as it sounded. So in the fall of 2011, he began sneaking a small video camera into the cafeteria at his school, to show his parents what the lunches were really like. Six months and 75 school lunches later, Zachary made a documentary film about his lunch called Yuck: A 4th Graders Short Documentary About School Lunch.Truth in Advertising?"The citys Department of Education says that its committed to providing delicious and nutritious meals through their food service program. But the lunch being served at my school was nothing like what they were advertising on their web site," Zachary, now 11, says in the documentarys trailer. "I told [my parents] thats not what they were actually serving me," he said. "But I dont think they believed me." For example, an "oven-baked pizza bagel with tricolor salad" was really nothing more than a slice of pizza and a wisp of lettuce. Sometimes there was no connection between the menu and what Zachary actually got. "Cheesy lasagna rolls with tomato basil sauce, roasted spinach with garlic and herbs" was, in reality, just a plastic-wrapped grilled cheese sandwich, all alone on a foam plate."When I came back home and showed them the footage, they were like, ugh!" Zachary said. His dad, an amateur filmmaker, started helping Zachary transform his video footage into a film. It won several awards, and Zachary also made appearances on television shows like Good Morning America.Not Perfect, But BetterLets face it: many times school lunches just arent going to taste as good as they sound. Students also complain that with lunches that follow the new school lunch guidelines, there just isnt enough food. Smaller portions, more fruits and veggies, and fewer calories leave some kids, especially teenagers, still hungry after eating their lunch. A group of students in Kansas even wrote a music video called "We Are Hungry," where they sing about their stomachs growling after lunch and how theyre collapsing on the sports field because they havent eaten enough.However, the new federal lunch guidelines do mandate meals that are better for students, with less sodium, more whole grains, fewer calories, and more fruits and vegetables, as well as skim or 1 percent milk. These are a definite improvement over school lunches of not that many years ago, which once stuck with fare like burgers, French fries, and chicken nuggets. Some schools even allowed fast food outlets like McDonalds and Pizza Hut to operate mini-restaurants in their cafeterias, or supply their products for students. Many schools have also reconsidered vending machines filled with sugary sodas, candy, and chips, replacing them with water and healthy snacks.The Lunch ForecastThe new school lunches are designed to help students eat better, and combat health problems like obesity in kids. Ideally, a healthy school lunch should also taste good ... or at least as good as the description on the menu. It should also keep students from taking a trip to the vending machine or a nearby convenience store as soon as lunch is over, because theyre still hungry. But will the lunches served in your cafeteria ever taste as good as a fast food burger or a gourmet meal cooked at home? You be the judge. How did archaeologists and historians learn to read Egyptian hieroglyphs? A. by excavating papyrus B. by deciphering Egyptian scrolls C. by translating the Rosetta Stone by studying with scribes Middle English was an integration of Old English and the German spoken by the Normans. True or False? What standard measurement would be best used to determine how much milk is in a milk carton for lunch? Which of the following is NOT a step in forming a formal command in Spanish? Ignore any yo form changes Take the yo form change is there is one Add the opposite ending add an 'n' if you are commanding multiple people Which could be a form of bias in a map?Check all that apply.>A. When cities are shown in green and countryside shown in yellowB. When south is depicted as being toward the top of the mapC. When road is labeled according to federal designation instead ofby local names D. When average incomes are given as a single number for an entirecounty Solve 2(4x+2)=4x-12(x-1) Supporters of using the atomic bomb against Japan believed it would save American lives. end the war in Europe. improve relations with China. improve relations with Russia. What is the freezing point of an aqueous 1.00 m NaCl solution? (Kf = 1.86 *C/m) (Assume complete dissociation of the salt.) help please..... 11 pointsssss Ifyou work out excessively in the gym, you will most likely experience:A-rhinorrheaB-dysuriaC-myalgia D-arteriosclerosis Which of the following statements regarding restriction enzymes is NOT true?A) Most restriction enzymes recognize sequences of 20-25 bp in length.B) Bacteria can add methyl groups to their DNA to prevent digestion by endogenous restriction enzymes.C) Most restriction enzymes recognize palindromic sequences in host DNA.D) Restriction enzymes may produce either sticky or blunt ends when digesting host DNA. Felisha has 34 nickels 26 dimes 21 quarters and 13 fifty cent prices. How much money does she have? a. About how far is it from Amarillo to Oklahoma City? Explain your reasoning. b. Driving at a constant speed of 70 miles per hour, will it be possible to make this trip in 3 hours? Explain how you know. Louisa has 4 yards of fabric. She uses 2/5 yard of fabric to make a doll dress. How many doll dresses can Louisa make with the fabric? Choose the number line model that shows the answer. A. Number line from 0 to 4 is divided into 20 equal parts. Number line is grouped into 4 equal parts. B. Number line from 0 to 4 is divided into 20 equal parts. Number line is grouped into 8 parts. C. Number line from 0 to 4 is divided into 20 equal parts. Number line is grouped into 5 equal parts. D. Number line from 0 to 4 is divided into 20 equal parts. Number line is grouped into 10 equal parts. Which equation could you use to solve for x in the proportion 4 over 5 = 9 over x ? . What is the total number of digitsprinted, if a book containing 150pages is to be numbered from 1 to150? A series of revolutions in the 1810s led to independence for nations inA Africa.B North America.C Europe.D Latin America.