Chemistry High School

plsss help ASAP!!!
BRAINLIEST

Plsss Help ASAP!!!BRAINLIEST

Answers

Answer 1

Answer:

-175.15

Explanation:

1.0 °C = 274.15 K

2.0 °C = 275.15 K

3.0 °C = 276.15 K

4.0 °C = 277.15 K

5.0 °C = 278.15 K

6.0 °C = 279.15 K

7.0 °C = 280.15 K

8.0 °C = 281.15 K

9.0 °C = 282.15 K

Answer 2
371.7 k hope this helps

Related Questions

What is needed to release the energy in a bond?

High temperatures

An electro-magnetic force

A fast moving electron

More energy

Answers

Answer:

More Energy

Explanation:

Energy is required to break bonds
Definitely more energy! Hope this helps.

A 7.3 kg Bowling Ball accelerates at a rate of 3.7 m/s2. What is the Force acting on the ball?

Answers

27.01N good luck:) that’s the answer

which phrase best defines the term energy​

Answers

Answer:

theres no options?

Explanation:

Helppp me plzzzzz!!!

Answers

Answer:

they use echos to communicate

Explanation: dolphins make echos in order to signal there partners, and others in there pod. or they can use it to signal for prey, or signal that they are in trouble.

Answer: A good example for this one is bats.

Explanation: While a couple of bats are known to emanate the beats through their nose, most bats will in general express them. The recurrence is estimated to be around 200 heartbeats each second, nonetheless, the time frame can fluctuate with the types of a bat. Credits: Adi Ciurea/Shutterstock A bat's squeaks are more rewarding than Ben's on the grounds that with higher recurrence comes higher-goal or more distinctive detail – they are equipped for evading deterrents no more extensive than a human hair! They use it to find and explore towards prey, for example, a hurrying bug.   As the distinguished sound waves that structure the pictures are basically echoes, they should adjust to a standard — the recovered train of heartbeats should be sufficiently noisy to get back to the sender, yet short sufficient with the end goal that the reverberation of the sender returns before the following one withdraw.


PLS HELPPPPPPPPPPPPP

Answers

Answer:

3. Structural features

The answer is the third sentence.

How old is the earliest ancestor of the Clarinet?

Answers

Answer: I believe 1838

Explanation:

Answer:

1838 is the correct answer, hope this helped

PLZ I NEEEEEEEDDDDDD HELP

Answers

Answer:

2h+02=h20

Explanation:

2 in front of h on left side

2 in front of h on right side

Answer:

Explanation:

1. __1___ Fe + __1___ S → __1___ FeS. 2. __1___ H2 + __1___ Cl2 → __2___ HCl. 3. __2___ Mg + __1___ O2 → __2___ MgO. 4. __1___ O2 + __2___ H2

Toothpaste is an alkali. How could you use the toothpaste to show that red cabbage is an indicator?

Answers

Answer:

PUT THE TOOTHPAST ON CABBAGE AND CHECK IT OUT AFTER A DAY

PLEASE HELP WILL MARK BRAINLEST!

Which of these elements does not take an electron from an s orbital?

Answers

all of them will take from an S orbital because the s block starts at hydrogen.
Avocados from Mexico

How many atoms are found in a 15.5 g sample of bismuth?

Answers

Answer:

4.47 x 10²² atoms

Explanation:

Given parameters:

Mass of Bismuth  = 15.5g

Unknown:

Number of atoms  = ?

Solution:

To find the number atoms, first solve for the number of moles in this element first.

  Number of moles  = [tex]\frac{mass}{molar mass}[/tex]    

  Number of moles  = [tex]\frac{15.5}{209}[/tex]    = 0.074mole

So:

        1 mole of a substance contains 6.02 x 10²³ atoms

     0.074 mole of Bismuth will contain 0.074 x 6.02 x 10²³ atoms

                                                          = 4.47 x 10²² atoms

Calculate the average atomic mass for an imaginary element "E" that has the following isotope abundances:
56.67 % E-102.658 amu
43.33% E-104.770 amu

Answers

Answer:

Average atomic mass of E = 103.57 amu

Explanation:

Given data:

Average atomic mass of E = ?

Abundance of E-102.658 = 56.67%

Abundance of E-104.770 = 43.33%

Solution:

Average atomic mass of E = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass of E = (56.67×102.658)+(43.33×104.770) /100

Average atomic mass of E =  5817.63 + 4539.68 / 100

Average atomic mass of E = 10357.31 / 100

Average atomic mass of E = 103.57 amu.

SnBr2

what is the name of this formula?

Answers

Answer:

Tin bromide


Explanation:

Tin(II) bromide is a chemical compound of tin and bromine


Describe the difference between ionization energy and electron affinity in terms of atomic structure.

Answers

Answer:

Please refer below to the attached file

Hope it helps

Please mark me as the brainliest

Thank you

3. Why have we not been able to create a fusion reactor on Earth?

Answers

Answer:

We are not able to create a fusion reactor on Earth because fusion energy production is not based on a chain reaction, as is fission. Plasma must be kept at very high temperatures with the support of external heating systems and confined by an external magnetic field.

Explanation:

Because fusion only occurs at very high temperature (in the centre of a star). That is accomplished in a start because of its great mass creating massive pressure and temperatures. This is extremely hard to recreate on earth.

transfer of energy by electromagnetic -science question
A.conduction
B.convection
C.radiation
D.reflection

Answers

Answer:

B. convention

Explanation:

hope you get the right answer

What are the names of the particle that contribute to the mass number of an atom?

Answers

Answer:

Only protons and neutrons contribute to an atom's mass value

Explanation:

 Can anybody help it 8th grade science about the sun

Answers

Answer:

The sun is at the (edge) of our solar system

and is much (hotter) than anything else in the solar system (95%) of the entire mass of the solar system is contain in the sun

In this activity, you will plan and conduct an investigation to compare a single property
across several substances. You must select a measurable property, such as boiling point or surface tension. After your investigation, you will compare the results and use your data to make inferences about the strength of the electrical forces in each substance you tested.

Answers

Do you still need help with this question?

When light moves from one substance to another, it can change direction. The following picture shows how this change can make an object in a glass of water seem to bend or even have disconnected pieces.


What is the term for this effect?

A.
transmission
B.
reflection
C.
refraction
D.
absorption

Answers

C. Refraction. When light enters a different medium, it changes direction due to change in speed and wavelength.

Calculate the atomic mass of oxygen if the three common isotopes of oxygen have masses of 15.995 amu (99.759% abundance), 16.995 amu (0.037 % abundance), and 17.999 amu (0.204 % abundance).

Answers

Answer:

16 amu

Explanation:

Will the energy released in the synthesis of water equal the energy absorbed in the decomposition of water?

Answers

Answer:

yes

Explanation:

the energy released in the synthesis of water is equal to the energy absorbed in the decomposition of water. This outcome happens because the difference in energy between the reactants and the products in both cases is equal. . It follows the law of conservation of energy.

This is the type of wave that travels in one direction but the energy travels in the opposite direction

Answers

Answer:

Transverse wave

Explanation:

A wave is defined as a disturbance along a medium which transfers energy from one point to another.

A wave may be classified as transverse or longitudinal based on the direction of energy transfer relative to the direction of wave motion.

In a transverse wave, energy is transferred in a direction perpendicular to the direction of wave travel. Hence, the direction in which the energy travels is opposite to the direction in which the wave travels.

Give an example of an object that has potential energy

Answers

Answer:

A book on a shelf

Explanation:

True/False: Atoms of the same elements have different properties

Answers

Answer: True

Explanation:

How do I know the number of molecules in a equation

Answers

Answer:

Calculate he number of moles you have by taking the Mass / molar mass. if you have 1000 grams ; then 1,000 g / 151.001 g/mol = X g moles. Then multiply by Avogadros # = 6.022140857 × 10^23 molecules per g mole. The result is the # of molecules of MnSO4.

Explanation:

A fixed mass of oxygen gas occupies 300cm cube at 0 degree centigrade. what volume would the gas occupy at 15 degree centigrade​

Answers

Answer:

hey

Explanation:

Which element is a poor conductor of heat?
A. F
B.K.
C. Fe
D. Ag

Answers

The Answer Is Fe Because Fluorine Is a Gas (In Its Elemental Form) Which, Like Other Gases, Is Not a Good Conductor Of Either Heat Or Electricity.

2. Hydrogen and Nitrogen
a. What kind of bond will form?

Answers

Answer:

A covalent bond

hope this helps!

Hey can someone please help me with this

Answers

Answer:

This is not a redox reaction.

Explanation:

A redox reaction is a reaction that involves reduction and oxidation processes. The best way to identify a redox reaction. Changes in the oxidation number f the species indicates that it is a redox reaction.

Na+

Reactant side = +1, Product Side = +1; No change

Cl-

Reactant side = -1, Product Side = -1; No change

Ag+

Reactant side = +1, Product Side = +1; No change

N

Reactant side = +5, Product Side = +5; No change

O

Reactant side = -2, Product Side = -2; No change

There is no change in any of the oxidation numbers, Hence this is not a redox reaction.

Balance the chemical equation. Based on the equation, how many grams of bromine are produced by the complete reaction of 11 grams of potassium bromide?

Answers

Answer:

Explanation:

The balanced chemical equation is Cl2 + 2KBr → 2KCl + Br2. The amount of bromine is calculated as follows:

11.0 g KBr (1mol KBr/119.002g KBr * 1mol Br2/2mol KBr * 159.808g Br2/1mol Br2= 7.39 g Br2.)

Other Questions
Which sentence shows the benefits of cultural contact?The Amerindian civilizations were disconnected from the larger world network, which included the civilizations ofAsia, Africa,and Europe. The Asian, African, and European civilizations established trade routes, whichallowed themto exchange ideas and services. The Amerindian civilizations couldn't participate in this exchange because of theirisolated locations. As a result, they grew and evolved at a slower pace than the Asian, African, and Europeancivilizations. However, once the Amerindian civilizations reached their full potential, they produced cultured andcomplex societies. Way Cool produces two different models of air conditioners. The company produces the mechanical systems in its components department. The mechanical systems are combined with the housing assembly in its finishing department. The activities, costs, and drivers associated with these two manufacturing processes and the production support process follow. Process Activity Overhead Cost Driver Quantity Components Changeover $ 627,450 Number of batches 890 Machining 379,155 Machine hours 8,050 Setups 108,000 Number of setups 60 $ 1,114,605 Finishing Welding $ 220,580 Welding hours 4,100 Inspecting 254,200 Number of inspections 820 Rework 47,200 Rework orders 160 $ 521,980 Support Purchasing $ 158,600 Purchase orders 488 Providing space 30,900 Number of units 8,400 Providing utilities 126,180 Number of units 8,400 $ 315,680 Additional production information concerning its two product lines follows. Model 145 Model 212 Units produced 2,800 5,600 Welding hours 800 3,300 Batches 445 445 Number of inspections 510 310 Machine hours 2,750 5,300 Setups 30 30 Rework orders 90 70 Purchase orders 325 163 Required: 1. Using ABC, compute the overhead cost per unit for each product line. 2. Determine the total cost per unit for each product line if the direct labor and direct materials costs per unit are $200 for Model 145 and $112 for Model 212. 3. If the market price for Model 145 is $515.95 and the market price for Model 212 is $303.34, determine the profit or loss per unit for each model. Show that the binomial is a factor of the polynomial. Then factor the polynomial completely.g(x)=x3x220x; x+4g(x)= Please Help I Need To Answer This Quick!!.... Will these groups of elements form ionic or molecular compounds? sodium and Iodine f(x) = X/x-1 and g(x) = 1+1/x find (g. f) (x) and (f. G) (x) Answer please, tysvm! witch of the following is a synonym for refract A recipe requires 1 cup of milk for every 4 cups of flour. Choose a linear equation that describes the relationship.A) y = 4xB) y = 4x + 1/4C) y = 1/4x + 4D) 1/4x Pleas help , reflexive verba 31. Explain the best ways to prevent and treat common exercise injuries 25 PTS HELPPPPPPPPPPPPPPPPPPppppGiven the Explicit Sequence f(n) = 23n1, what is f(5)? Write two division expressions that have the same value as 36.8 divided by 2.3 (16) help? will give brainliest Use addition to solve theIx-y=6ly=x-4 PLEASE HELP MECaro is revising her narrative and focusing on her opening paragraph.Captain Bernard braced himself against the ship's sturdy mast. There was no turning back. The storm chasing the pirate's ship through the narrow channel was far more deadly than the dozens of imperial ships waiting for him on the open sea. He advised his small and plucky crew to sail dead ahead," hoping it wouldn't actually come to that.How can Caro improve this paragraph to better establish the context of her story? A. She could add details that tell who the storys characters are. B. She could add a detail or two about when the story takes place. C. She should add more details explaining the what and why of the story. D. She should not change anything. The paragraph already tells the who, what, when, where, and why of the story. Name the two most-researched and best-known cities in Ancient India. In which modern-day country were they located? Jim is planning to take some classes at the community college. Tuition is $110 per credit,plus $60 in fees. Jim has saved $1050 to take classes. How many credits can Jim afford totake with the money he saved? Can yall help me with this At what value of x does the graph of the following function F(x) have a vertical asymptote?