What must be present in order for
electricity to flow?

A. positive and negative charges

B. an electrical outlet

C. Neutrons

D. water

Answers

Answer 1
Pretty sure it’s A.

Related Questions

The following is NOT an example of a behavior:
Buying a lottery ticket
Jumping rope
Doing a 60 second plank
Making the decision to buy a lottery ticket

Answers

Answer:

making the decision to buy a lottery ticket

Explanation:

all the others are q result of a thought........whereas the last one is actually one of the thoughts

What is the name of this molecule?

Answers

Answer:

3-hexyne

Explanation:

Which need, want value, or interest was most likely involved in the
development of the device shown?
A. A lack of parking spaces for cars
B. A way to read license plates from afar
C. A safe and fair driving environment
D. A well-funded police department
PREVIOUS

Answers

For this question the answer is c

Answer: C

Explanation:

can someone answer this question on electrolysis please
37 POINTS for the BRAINLIEST

Answers

Answer:

There are two electrodes in an electrolysis solution: the positive and the negative electrode. The reaction that happens at each electrode is different. ... Positively charged ions (metals and hydrogen), are attracted to the negative electrode (the cathode), where they receive electrons (a process known as oxidation).

Explanation:

A half equation is used to represent the reaction that happens at an electrode during electrolysis . It shows what happens when ions gain or lose electrons .

hope this helps ^^

how many moles of H2O will be required to make 17.6 moles of O2

Answers

Answer:

1 mole

Explanation:

A mole of water molecules contains 2 moles of hydrogen atoms and 1 mole of oxygen atoms.

PLEASE HELP DUE NOW

how many valance electrons do all of the elements under carbon have?

Answers

Carbon has 4 but all the elements under the group is the same number of valence is every element

Which material is the medium of ocean waves?
A. Sand
B. Air
C. Rock
D. Water

Answers

Answer:

Its D. Water

Explanation:

hope this helps :)

in the image shown above which type of heat transfer is represented by the number 3?
A-conduction
B-convection
C-latent heat
D-radiation

Answers

Answer:

Radiation

Explanation:

Radiation is energy that comes from a source and travels through space or heat energy through the air

I hope this helps u..

science help me please :))

Answers

Answer:

There will be 2 nitrogen and 2 oxygen atoms in the product.

Explanation:

In a chemical reaction, atoms are neither created or destroyed, which means if there are 2 nitrogen atoms in the reactants, there will be 2 nitrogen atoms in the products. Similarly, if there are 2 oxygen atoms in the reactants, there will be 2 oxygen atoms in the products.

Let me know if this helps!

What does this quote mean to you?
"You may need to fight a battle more then once to win."

Answers

Explanation:

I think it means that even if you dont succeed at something the first time you do it doesn't mean you sould give up.

BONUS: SHOW D.A. SETUP AND CORRECT ANSWER FOR +2 POINTS

A Troy High School senior has a goal of getting accepted at 10 colleges. Her counselor explained that with the excellent grade she received in AP chemistry she would probably be accepted to one school out of every three to which she applied. She immediately realized that for each application she would have to write 3 essays, and each essay would require 2 hours work. Of course writing essays is no simple matter. For each hour of serious essay writing, she would need to expend 500 calories that she could gain from eating her mother's apple pies. Each apple pie contains 1000 calories. How many pies would she have to eat in order to gain acceptance to 10 colleges?

Answers

Answer:27

Explanation:

Took the test

Answer:

30 slices of pie

Explanation:

10 colleges = 30 essays

30 essays= 60 hours of work

60 hours = ( 500*60)

30,000 calories expended = 30 slices of pie

I wouldn't recommend eating that much pie.

Which group/family contains elements with the smallest radius within the same period?

Answers

Answer:

Halogens

Explanation:

From the given choices, the halogens will have the smallest radius within the same period.

The size of an atom is estimated by the atomic radius. This is taken as half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements or half of the distance between two nuclei in the solid state.

Across a period in the periodic table, atomic radii decrease progressively from left to right. Down a group from top to bottom, atomic radii increase progressively due to the addition of successive shells.

Since halogen is the right most group from the choices given, it will have the smallest radius.

How many atoms of Na would be in 2.53 moles of Na?

Answers

Answer:

15.24 × 10²³ atoms

Explanation:

Given data:

Number of atoms of Na = ?

Number of moles of Na = 2.53 mol

Solution:

1 mole contain 6.022× 10²³ atoms.

2.53 mol × 6.022× 10²³ atoms / 1mol

15.24 × 10²³ atoms

The number 6.022 × 10²³ is called Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

Choose the correct missing coefficient to balance the following equation:
___H2 + O2 ---> 2H2O *

1
2
3
4

Answers

Answer:

2

Explanation:

because it helps to balance the equation

Answer:

2

Explanation:

We want to balance the equation. On the right, there are 4 hydrogens, and 2 oxygens. We should have the same amount on the left.

For hydrogens, we want 4. 2 *2 =4,

Therefore, the answer is 2

I hope this helps! :)

How does the strength
of the force effect the
velocity of the object?

Answers

Answer:

nertial mass is a measure of how difficult it is to change the velocity of an object. Example. Calculate the force needed to accelerate a 22 kg cheetah at 15 m/s².

Explanation:

Which of the following could be the rate equation for a first order reaction? please help this is timed

Answers

Rate = k[A] = first order reaction

Further explanation

Given

Rate law

Required

A first-order reaction

Solution

The rate law : equation for the rate of chemical reaction

For reaction

aA + bB ⇒ C

The rate : r = k[A]ᵃ[B]ᵇ

The sum of exponents(a+b) is the reaction order

From the choice :

a. a+b = 2, second order reaction

b. a+b = 3, third order reaction

c. a+b = 4, fourth order reaction

d a+0 = 1, first order reaction

How many liters of air must react with 2500 mL of hexane in order for combustion to occur completely. The percentage of oxygen in air is 20.9%.

Answers

Answer:

118750 ml

Explanation:

The chemical equation for complete combustion of hexane is given as;

2C6H14 + 19O2 → 12CO2 + 14H2O  

From the equation of the reaction;

2 mol of C6H14 reacts with 19 mol of O2

2 ml of C6H14 reacts with 19 ml of O2

2500 mL of C6H14 would react with x ml of O2

2 = 19

2500 = x

x = 2500 * 19 / 2 = 23750 ml

Since oxygen is 20% of air;

23750 = 20 / 100 * (Volume of air)

Volume of air = 23750 * 100 / 20 = 118750 ml

PLEASE HELP YOU HAVE TO CLICK THE CORRECT ONES PLEASE IM BEGGING YALL IF I FAIL THIS I FAIL MY GRADE....... Directions: Select each correct image. More than one image may be correct.
The diagrams below show interactions between charged particles. The blue particles are negatively charged, and the red particles
are positively charged.
Which of the diagrams shows a correct interaction between the fields of two charged particles?

Answers

Answer:

D

Explanation:

Since the negative particles are going towards the negative section and the positive particles are leaving the positive section. Additionally, opposite charges attract each other and like charges repel each other.

There will be attraction between the opposite charges and repulsion among the like charges. Here the diagram D shows a correct interaction between the fields of two charged particles.

What is a electric field?

The electric force acting per unit charge is defined as the electric field. They are generally produced by changing the electric charges or magnetic fields. The electric field strength is expressed in volt per meter (V/m).

E = F/Q

In an electric field it is the electric charge which provides the direction of field. If the charge is negative, then the field is directed towards the charge. A field is directed away from the charge if the charge is negative.

All the electric fields start form a positive charge and end on a negative charge. If two positive charges interact then there will be repulsion between them. But if a positive charge interact with a negative charge then there will be attraction among them.

In diagram D there is an attraction between the opposite charges.

Thus the correct option is D.

To know more about the electric field lines, visit;

https://brainly.com/question/28128803

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What is the mass in grams of 1.95 moles of water

Answers

Answer:

35.1 grams H2O

Explanation:

Using the molar mass of water (18.016 g/mol):

1.95 mol H2O * (18.016 g H2O / 1 mol H2O) = 35.1312 g H2O --> 35.1 g H2O (with sig figs)

what is the electron configuration of Zn+
A. [Ar] 3d10
B. [Ar] 4s2 3d10
C. [Ar] 4s2 3d9
D. [Ar] 4s1 3d10

Answers

Answer:

A.

Explanation:

Its [Ar] 3d¹⁰4s²

.A student sets up a controlled experiment to test whether aluminum bats hit baseballs further than wooden bats. After measuring the distance travelled by hundreds of struck baseballs, by both high school and professional players, he concludes that wooden bats hit baseballs further because professional players use wooden bats and hit the ball much further than high school players who use aluminum bats.



Where is the flaw in his approach?

Answers

His flaw is that he used professional players and high school players this makes the experiment uncontrolled because the players are at two levels of strength.

The flaw in his approach or his flaw is that he used professional players and high school players this makes the experiment uncontrolled because the players are at two levels of strength.

What was the experiment done by a student to test aluminum bats hit baseballs further than wooden bats?

A student sets up a controlled experiment to test whether aluminum bats hit baseballs further than wooden bats. After measuring the distance travelled by hundreds of struck baseballs, by both high school and professional players.

He concludes that wooden bats hit baseballs further because professional players use wooden bats and hit the ball much further than high school players who use aluminum bats. If aluminum bats were permitted for use in baseball then a lot of teams would begin to use them instead. This would reduce the demand for wooden bats and lead to their prices falling.

Therefore, The flaw in his approach or his flaw is that he used professional players and high school players this makes the experiment uncontrolled because the players are at two levels of strength.

Learn more about players on:

https://brainly.com/question/23857247

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PLSS HELPPP ILL GIVE 30 POINTS PLSS its for a test plss
SHORT ANSWER QUESTION: Include a Claim, Evidence, Explanation, and Conclusion for full credit.

Cells were obtained from a patient with a viral infection. The DNA extracted from these cells consisted of two forms: double-stranded human DNA and single-stranded viral DNA. The base composition of these two forms of DNA are shown in the image.

Construct an argument based on evidence to determine which form was the viral DNA and which form was the human DNA.
(5 Points)

Answers

Answer:

I am sorry but this is cheating you have to come up with your own answer

Explanation:

A sample of water contains 5.24 x 1022 molecules. How many moles are in this sample?

Answers

Answer:

0.087 moles of water

Explanation:

Given data:

Number of molecules of water = 5.24×10²² molecules

Number of moles of water = ?

Solution:

Avogadro number:

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ molecules of water

5.24×10²² molecules × 1 mol / 6.022 × 10²³ molecules

0.87×10⁻¹ mol

0.087 mol

How many moles of water are needed in order to produce 218 g of calcium
hydroxide?
Cacz + 2H2O -------> CH2 + Ca(OH)2
0.59 moles
111 moles
30 moles
0.15 moles

Answers

Answer:

-------> CH2 + Ca(OH)2

0.59 moles

111 moles

30 moles

0.15 moles

is palladium a metal nonmetal or metalloid

Answers

Answer: metal i believe

Explanation:

Answer:

It is a rare and lustrous silvery-white metal

Explanation:

Name the salts formed:
1. Magnesium + Nitric Acid
2. Calciuni + Hydrochloric acid
3. Zinc + Sulfuric acid
4. Iron + Sulfuric acid
5. Copper + Nitric Acid

Answers

Answer:

1)magnesium nitrate +hydrogen

2)calcium chlorine+hydrogen

3)zinc sulfate +hydrogen

Explanation:

hope it helps

Choose the answer that best completes the passage.

The formation of scientific theories is generally guided by the law of ________, which states that the answer requiring the fewest number of assumptions is more likely to be correct.

a. parsimony

b. ideal gases

c. conservation of mass

d. equivalent exchange

Answers

a) parsimony/thriftiness

Subscripts and coefficients are used in chemical equations to show the number of atoms and molecules in a reaction.
True or false

Answers

True is the answer to the question

True or False. If a fire destroyed all of the grass in a grassland, this would NOT affect the biodiversity of this ecosystem.

Answers

Answer:

This is false

Answer:

100% false

Explanation:

common sense

what is the most reactive alkali metal?​

Answers

Answer:

Na, soudium

Explanation:

also Fr Francium.

Francium is the most reactive alkali metal
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Somebody help me ASAP due in 12 minutes Use the equation below to find y if m =4 x=5 and b=12 I need help There are 20 Boys on the Alden Middle school soccer team,40% also play on a travel team.How many of the boys on the middle school team also play on a travel team? ear, Inc. generates a $100,000 net operating loss in the current year. Plum, Inc. generates $500,000 of taxable income. Compute the current year tax if Pear and Plum do/do not file a consolidated return. An artist has completed 1/4 of a painting in 2 weeks. At what rate is she working?. Complete the sentence to describe the triangle shown. part 1 A) an acute triangle B) an obtuse triangle C) a right angle part 2 A) an equilateral triangle B) an isosceles triangle C) a scalene triangle The roof at a tennis stadium opens 421 inches in 50 seconds.How many inches does the roof open per second?A.) 0.12B.) 8.42C.) 371.0D.) 471.0Plz answer this QUICKKKKKK I need this answer really badly. Simplify 3n+2(-2n-1) Where do many of the world's deserts lie? Amanda has four boards that are each 64 inches long. She needs to cut each board into multiple pieces that are each 12 4/5inches long. How many pieces will she have after she cuts all four boards? Select the correct answer.Identify the tourist destination that best fits this description.Ces les sont trs clbres pour leurs richesses naturelles et pour leurs belles plages.A.Les CaraibesB.Le Nouveau-BrunswickC.Le QubecD.La Guyane franaise Write each power as a product of the same factor. Then find the value.2.5^3A) 2.5 x 2.5; 6.25 B) 2.5 x 2.5 x 2.5; 15.625C) 2.5 x 3; 7.5D) 2.5 x 2.5 x 2.5 x 2.5; 30.0625 I need help 5th grade Solve the polynomial equation. x^3+4x^2-19x-6=0 WILL GIVE BRIANLEST IM WATCHING What is a theme in "Saving Tobe"? i will give brainlyest if right There is little to be gained by showing off. Times of crisis often bring people together. One will not always receive thanks for acts of kindness. A strong leader sets the example for positive behavior. 1. Mr. Ortiz used similar triangles to make a design. Which statement about the triangles in thedesign must be true? What does C equal? C/66 = 8/11 y is directly proportional to (x-1)2.When x = 3, y = 24.Find y when x = 6. Which of the following cities is considered holy by Muslims, Jews, and Christians? BethlehemBoerneJerusalemMecca