I need help with question 5

I Need Help With Question 5

Answers

Answer 1

Answer:

B a spring being stretched

I Need Help With Question 5

Related Questions

The number of joules required to heat one gram of a substance one degree Celsius is _____.


endothermic

temperature

exothermic

specific heat capacity

Answers

The answer is D - specific heat capacity.

9. During an experiment the students prepared three mixtures A)Starch in water B) Sodium chloride solution C) Tincture of Iodine. i) Students observed a visible beam of light through mixture A. Why? ii) Tincture of lodTe did not show Tyndall effect. Explain reason. ill) How can you relate particle size to Tyndall effect?​

Answers

Answer:

See explanation

Explanation:

Tyndall effect refers to the scattering of light in a solution. Tyndall effect occurs when the size of particles in the solution exceeds 1 nm in diameter. Such solutions are actually called false solutions.

In tincture of iodine, the size of particles in solution is less than 1 nm in diameter hence the solution does not exhibit Tyndall effect. Hence, tincture of iodine is a true solution.

Therefore, if the size of particles in solution exceeded 1nm in diameter, Tyndall effect is observed.

How much heat is added if .0948g of water is increased in temperature by .728 degrees C?


.289 J

.803 J

1.46 J

.055 J

Answers

Answer:

0.289J of heat are added

Explanation:

We can relate the change in heat of a substance with its increasing in temperature using the equation:

q = m*ΔT*S

Where Q is change in heat

m is mass of substance (In this case, 0.0948g of water)

ΔT = 0.728°C

S is specific heat (For water, 4.184J/g°C)

Replacing:

q = 0.0948g*0.728°C*4.184J/g°C

q = 0.289J of heat are added

What is the name for the compound li2so4

Answers

Answer:

Explanation:

Lithium Sulphate

Answer:

Lithium sulfate is a white inorganic salt with the formula Li2SO4. It is the lithium salt of sulfuric acid.

****URGENT****
I need help!!!
the answers are there, i need someone to explain please!

Answers

Explanation:

your answer was correct

Explain which intermolecular force is primarily responsible for the unusually high boiling point of H2OH2O. Compare the strengths of intermolecular forces of attraction present in a sample of liquid water to the strengths of intermolecular forces of attraction present in liquid samples of H2SH2S, H2SeH2Se, and H2TeH2Te. Justify your answer using the information presented in both tables, and complete the statements below.

Answers

Answer:

See explanation

Explanation:

Intermolecular forces are forces of attraction that exist between molecules of a substance in a particular state of matter.

The dominant intermolecular force of attraction in H2O is the hydrogen bond. The hydrogen bond exists between molecules of a substance when the substance is made of hydrogen atoms bonded to atoms of a highly electronegative element. Hence, strong hydrogen bonding accounts for the high boiling point of water.

The magnitude of hydrogen bonding between molecules depends on the electro negativity of the atoms to which hydrogen is bonded.

The more the electro negativity of the atoms to which hydrogen is bonded, the greater the magnitude of intermolecular hydrogen bonding.

Since the electro negativity of elements decrease down the group, the strength of intermolecular hydrogen bonding between the molecules decreases as follows;

H2O> H2S> H2Se> H2Te

PLZ HELP ME Which of the following is the process by which chloroplasts use carbon dioxide, water, and sunlight to produce sugars and oxygen?
A. Photosynthesis
B. Cellular respiration
c. Reproduction
D. Homeostasis​

Answers

Answer:

a

Explanation:

The answer is Photosynthesis

which chloride is a coloured solid rtp

Answers

Answer:

sodium chloride

hope that helped :)

Answer:

Chlorine is a greenish yellow gas at room temperature and atmospheric pressure. ... yielding chlorine water, and from this solution a solid hydrate of ideal ...

A sample of gas occupies 1.2 L at 12.0oC. Assuming pressure remains the same, what would be the volume (in L) of this gas at 67oC?

A.
1.4

B.
1.0

C.
0.2

D.
5.0

E.
6.7

Answers

Answer:

e.

6.7

hope it help

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Balance in basic solution: O2(g) + Cr³+ (aq) → H₂O2 (1) + Cr₂O7²- (aq)

Answers

cr2o72+H2o2-(r3+o2)

Explanation:

r62o72+H2o2-(r3+o2)

career in chemistry list ten

Answers

Answer:

Analytical Chemist

Forensics

Toxicologist

Biochemist

Chemical Engineer

Laboratory Technician

Pharmacologist

Chemical Technician

Materials Scientist

Environmental Chemist

Research scientist
Chemical engineer
Toxicologist
Analytical chemist
Chemistry teacher
Forensic scientist
Hazardous waste chemist
Water chemist
Geochemist
Pharmacologist

what is the name of this organic molecule

Answers

Answer:

C2H4 Ethylene

Explanation:

Hope it helps! :)

Write the relation of M3 with its multiples

Answers

Explanation:

HI friends good morning

How many moles of oxygen are required to react completely with 5 mol C8H18?

Answers

Answer:

62.5 moles of O₂.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

2C₈H₁₈ + 25O₂ —> 16CO₂ + 18H₂O

From the balanced equation above,

2 moles of C₈H₁₈ reacted with 25 moles of O₂.

Finally, we shall determine the number of mole of O₂ needed to react with 5 moles of C₈H₁₈. This can be obtained as shown below:

From the balanced equation above,

2 moles of C₈H₁₈ reacted with 25 moles of O₂.

Therefore, 5 moles of C₈H₁₈ will react with = (5 × 25) / 2 = 62.5 moles of O₂.

Thus, 62.5 moles of O₂ is needed for the reaction.

name some examples of chemical solutions and maybe give a clear explanation as to what chemical solutions are ​

Answers

Answer:

Some examples of solutions are salt water, rubbing alcohol, and sugar dissolved in water. ... In our example of salt water, the solute is the salt. Solvent: this is the substance that makes up the majority of the solution. This is the part where the solute is dissolved.

Explanation:

I hope they should be right answer

In a hospital, bags of saline solution are used to rehydrate patients. They are made by dissolving a specific amount of salt in water. What is the solvent in the saline solution?

A. Bag
B. Patient
C. Saline
D. Water

Answers

D. Water

The solvent is the liquid that the solute (salt) is dissolved in.

Water is the solvent in the saline solution. Hence, option D is correct.

What is the solute?

A solute is something being dissolved, a solvent is a thing dissolving the item, and the solution is the mixture of the two items.

In a hospital, bags of saline solution are used to rehydrate patients. They are made by dissolving a specific amount of salt in water. Water is the solvent in the saline solution.

Hence, option D is correct.

Learn more about the solution here:

https://brainly.com/question/7932885

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PLS HELP!! WILL MARK BRAINLIEST! 99 POINTS!

Answers

You're going to first balance the chemical equation.

After that, convert the grams of Na into moles of Na, and then multiply that with the ratio of moles of NaCl to Na, and then convert the mol of NaCl into grams in order to obtain the theoretical yield, since we are given that Na is the limiting reactant.

After that, plug the values into the yield formula, doing some basic algebra, and you should get your result.

You're going to first balance the chemical equation.

After that, convert the grams of Na into moles of Na, and then multiply that with the ratio of moles of NaCl to Na, and then convert the mol of NaCl into grams in order to obtain the theoretical yield, since we are given that Na is the limiting reactant.

After that, plug the values into the yield formula, doing some basic algebra, and you should get your result.

what is the reactant(s) in the chemical equation below

3CO(g) + Fe2O3(s) 2Fe(s) + 3CO2(g)

Answers

Answer:

the reactants are carbon dioxide ,iron, oxygen

Define force and speed​

Answers

Force = The external energy that changes or tends to change the state of any body or object is called force.

Speed = The rate of distance is called speed.

Answer:

Force is a push or pull which changes or tend to change the position of a body.

The rate of change its position with time or magnitude is called speed.

can you solve this science question ⁉️​

Answers

Answer:

chemical reaction between those a b c it's a reaction which occurs when heating

What is an atomic mass unti

Answers

Explanation:

a unit of mass used to express atomic and molecular weights, equal to one twelfth of the mass of an atom of carbon-12.

Answer:

Atomic Mass Unit is also called Dalton. It is used to express atomic and molecular weight. It is defined as 1/12 of the mass of an unbound neutral atom of carbon.

5+64
this is TOTALLY SOOOO hard so help me
^thats what she said

Answers

Answer:

69

Explanation:

I thought that I answer is correct

Answer:

The answer is 69

Explanation:

Because if you add one its 66, and so on, hope this helps! but if you add five it will be 69, if you need help with easy equations let me know

A pupil has drawn the electronic structure of fluorine and the diagram is shown below. However,
mistakes have been made. State three mistakes that have been made.

Answers

The first shell can only hold 2 electrons, but the pupil placed in 8 electrons.

The second shell can hold up to 8 electrons, but the pupil only placed in 2 electrons.

Flourine only has 9 total electrons, yet there are 10 electrons in the diagram.

Answer:

Explanation:

In the Fluorine atom there are 2 electrons in the innermost shell and 7 i the outer shell.

list three factors that affect the rate of a chemical reaction

Answers

Answer:  1)  temperature, 2) add a catalyst, and 3) concentrations

Explanation:  A rise in temperature adds kinetic energy to the reactants, leading to more frequent, and energetic collisions, which will often accelerate the reaqction.  A catalyst is an agent that helps the reaction move forward more quickly by offering a substrate that aids in orienting the reactants for more efficient reaction.  A higher concentration increases the chances of collisons that result in products.

what is the most appropriate unit to measure the following; the length of a football field. b) the diameter of a tennis ball​

Answers

Explanation:

a) m (metre)

b) mm (millimeter)

PLZ HELP ME A girl throws a ball and her dog chases it. What characteristic of living things is this dog demonstrating as it chases the ball?
A. Cells
B. Reproduction
C. Growth
D. Response ​

Answers

I'm not sure but I think its D.response

PLZ HELP ME WITH MY WORK
What is a compound?
A substance that is made from two different metals
B. A substance that cannot be broken into simpler substances
C. A substance that is made using a chemical reaction
D. A substance that can be separated by physical means​

Answers

Answer:

C.

Explanation:

Answer A is incorrect because a compound doesn't have to be made with only metals.

Answer B is incorrect because that is actually the definition of a pure element.

Answer C is correct because to make a compound, there has to be a chemical reaction where bonds are formed and an entirely new substance is created.

Answer D is incorrect because compounds cannot be separated by physical means.

Hope this helps :D

Which of the following is a scientific question you could ask about the game
of basketball?
A. Do you enjoy basketball more than volleyball?
B. Which team is this year's best?
C. Which player should be traded to another team?
D. Do teams that practice more win more games?
SUBMIT

Answers

The scientific question related to the game of basketball is option D: "Do teams that practice more win more games?"

This question is scientific because it explores a cause-and-effect relationship between practice and game outcomes. It can be investigated through empirical observation and data analysis.

To answer this question, researchers could collect data on the practice hours of different basketball teams and compare them to their corresponding game performance. Statistical analysis could be used to determine if there is a correlation between practice time and winning percentage or other performance metrics.

By examining a large sample of teams over an extended period, researchers could draw conclusions about the impact of practice on game outcomes. This scientific inquiry would contribute to the understanding of the factors that influence team success in basketball and could potentially inform training strategies and coaching techniques.

For more question on basketball

https://brainly.com/question/29505871

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If I add sugar into water then _________________
Pls help

Answers

Explanation:

When adding sugar to water it became a syrupy solution. Here sugar acts as solute, the water acts as solvent and syrupy acts as solution. When adding sugar to water, the disaccharide of sucrose is converted into monosaccharides of glucose and fructose

Answer:

syrupy solution

Small quantities of spilled acids can be made safe with *
1 point
o gasoline.
alcohol.
water.
sodium bicarbonate solution.

Answers

Answer:

sodium bicarbonate solution

What is the correct clases for this drugs

‏Compazine
heelp me please
Other Questions
HELP! GIVING BRAINLIEST!!Conjugate the verbs below using the CONDITIONAL tense and reflexive verb format. Example : Yo me ducharia (reflexive conditional) a las 8am/Yo comera (standard conditional) en la panadera el Globo.I. Cmo sera tu da ideal?:I bathe (baar)I brush (cepillar)I study (estudiar)I speak; talk (hablar)I get up (levantar)I watch (mirar)I take; drink (tomar)I practice (practicar)I learn (aprender)I drink (beber)I eat (comer)I read (leer)I see (ver)I open (abrir)I attend (asistir)I decide (decidir)I write (escribir)I do; make (hacer)I put; set (poner)I leave (salir)I come (venir)I go to bed (acostarse)I eat lunch (almorzar)I request; order; ask for (pedir)I prefer (preferir)I want (querer)I repeat (repetir) Based upon the following data for a business with a periodic inventory system, determine the cost of merchandise sold for August. Merchandise inventory, August 1 $ 96,610 Merchandise inventory, August 31 100,530 Purchases 254,660 Purchases returns and allowances 13,340 Purchases discounts 6,320 Freight in 4,070Cost of Merchandise Sold for August = ______. Help please:))2. When shipping ice cream, melting is understandably a big concern. You will notice that ice cream is not generally packaged in a cube-shaped container. A standard container of ice cream contains 1 L, or 1000 cm3 of ice cream, a. What would be the optimal dimensions (radius and height) to minimize surface area? b. What would the surface area be?C. Suggest at least two reasons why this is different from the ice cream packaging that you see in the stores. 1. Most of the chemicals included in your General Chemistry Lab kit can be discarded down a drain. Describe a situation in which you would need to neutralize a chemical before discarding down a drain. wrote the terms below.8, 4, 0, 4, 8, 12What do these terms represent? an arithmetic seriesan arithmetic sequencea geometric seriesa geometric sequence Answer this please~!!!! Use the Ka values for weak acids to identify the best components for preparing buffer solutions with the given pH values. Name Formula Ka Phosphoric acid H3PO4 7.5 x 10^-3 Acetic acid CH3COOH 1.8 x 10^-5 Formic acid HCOOH 1.8 x 10^-4pH 1.9 =_________pH 5.0 = ________pH 3.9= ________ The mass of a brick is 2kg. Find the mass of water displaced by it when it is completely immersed in water. (Density of the bricks is 2.5 g/cm^3) find the missing length indicated Evaluate w+(-x) - 2/3 where w = -5/9 and x = 4/3 18 Ib. Then her dog loses another 1 lb. Finally, itCece doggains lb. What is the total change in her dog's weight? how your work. Pleasss help f(x) = 2x2 + 4x - 5g(x) = 6x3 2x2 + 3Find (f + g)(x). Travis and Andrea were divorced in 2017. Their only marital property consisted of a personal residence (fair market value of $400,000, cost of $200,000), and publicly traded stocks (fair market value of $800,000, cost basis of $500,000). Under the terms of the divorce agreement, Andrea received the personal residence and Travis received the stocks. In addition, Andrea was to receive $50,000 for eight years. I. If the $50,000 annual payments are to be made to Andrea or her estate (if she dies before the end of the eight years), the payments will qualify as alimony. II. Andrea has a taxable gain from an exchange of her one-half interest in the stocks for Travis' one-half interest in the house and cash. III. If Travis sells the stocks for $900,000, he must recognize a $400,000 gain. a.I, II, and III are true. b.Only III is true. c.Only I and II are true. d.Only I and III are true. Find x on this triangle can someone help me out with this question??? The gravitational force acting on various masses is measured on different planets. Measured values for the forces acting on the corresponding masses are shown in the data table. Analyze the data and develop a method for comparing the gravitational field strengths on the different planets. Use your method to compare the gravitational field strengths, and report your conclusions. a soft drink vendor at a popular beach analyzes his sales recods and finds that if he sells x cans of soda pop in one day, his profit (in dollars) is given by What was the main effect of the Articles of Confederation? A. Foreign powers did not take the new country seriously B. The national government was weak C. Three branches of government were created D. The authority of the state governments was severely limited Not sure how to do this Make six prime numbers using the digits 1, 2, 3, 4, 5, 6, 7, 8, 9 once each.~can you plz explain?!