Which one(s) make an atom neutral?
a. electron
b. proton
C. proton and neutron
d. electron and proton

Answers

Answer 1

Answer: its D

Explanation:


Related Questions

i'll give brainliest


You live near the ocean and your friend lives further inland. Based on this, what can you say is most likely different about the climate in your area from your friend's area in the winter?


Your friend has colder winters than you do.

Your friend has warmer winters than you do.

You have less precipitation than your friend does.

You get more sunshine in the winter.

Answers

Answer:

I'm thinking its "Your friend had colder winters than you do."

Explanation:

It is not "Your friend has warmer winters than you do." Or "You Have less precipitation than your friend does." I was doing this quiz before that had this question and its not those.

In the ocean side the the winter will be colder by the ocean breeze in the day time. The location of your friend farther from the ocean will have  warmer winters than you.

What is sea breeze ?

Any wind that flows from a big body of water onto or onto a landmass is called a sea breeze or an onshore breeze. Sea breezes form as a result of changes in air pressure brought on by the different heat capacities of water and dry land. Sea breezes are therefore more confined than prevailing winds.

A sea breeze is frequently seen along coasts after sunrise because land warms up far more quickly than water does when exposed to solar radiation. While dry ground also cools faster than water, a land breeze or offshore breeze has the opposite effect.

In winter seasons, along with the sea breeze make the climate more colder than that in locations farther from oceans. Hence, option b is correct.

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two chemicals are mixed together and a gas is produced. *
chemical change
physical change ​

Answers

Answer:

chemical change

Explanation:

chemical change is when a substance combine with another substance to form a new substance.

what is the formula for the ion potassium

Answers

Answer:

The formula for a Potassium ion is K+

Which statement is true about heat transfer? *
5 points
a. Heat can only transfer when touching another object.
b. Heat always travels up.
c. Heat transfers from cooler to warmer objects.
d. Heat transfers from hotter to cooler objects.

Answers

Answer: A

Explanation:

 heat always passes from a warmer object to a cooler object until all objects are the same temperature. Conduction is how heat travels between objects that are touching. Conduction travels fastest through solids, but liquids and gases can also conduct heat.

what does inclusion mean

Answers

Answer:

It means to be included in something, such as a group or activity.  

Explanation:

Answer:

The action or state of including or of being included within a group or structure

OR

The practice or policy of providing equal access to opportunities and resources for people who might otherwise be excluded or marginalized, such as those who have physical or mental disabilities and members of other minority groups.

Explanation:

What do you think is the primary reason why the Unionid mussel population declined whenever there is a dramatic increase in the Zebra mussel population?

Answers

Answer:

When the Zebra arrived they ate all the food so the Unionid mussels declined as they died from the lack of food. Causing the Zebra Zebra numbers to increase and Unionid numbers to decline.

0.14g of methanol is burnt and 3.04kJ of heat is released. Calculate the enthalpy of combustion of methanol.

Answers

Answer:

-694.8 kJ/mol ≅ -695 kJ

Explanation:

The enthalpy of combustion (ΔHc) is defined as the amount of heat that is released when 1 mol of the compound is burned. We have the mass of methanol (0.14 g) and we have to calculate the moles present in that mass. For that, we need the molecular weight of methanol, which is calculated from the molar mass of the chemical elements.

Methanol: CH₃OH

Mw(CH₃OH) = (12 g/mol x 1 C) + (1 g/mol x 3 H) + 16 g/mol O + 1 g/mol H = 32 g/mol

moles of CH₃OH = mass/Mw(CH₃OH) = 0.14 g/(32 g/mol) = 4.4 x 10⁻³ mol

As the heat is released, the change in enthalpy is a negative value: -3.04 kJ.

Finally, we divide the released heat (-3.04 kJ) into the number of moles of CH₃OH:

ΔHc= (-3.04 kJ)/(4.4 x 10⁻³ mol CH₃OH) = -694.8 kJ/mol ≅ -695 kJ

Las reacciones de adición son... 2 reactivos producen 2 productos nuevos 2 reactivos producen un solo producto 1 reactivos produce 2 productos El reactivo es una sustancia carbonada y O2

Answers

Answer:

Las reacciones de adición son... 2 reactivos producen un solo producto.

Explanation:

Las reacciones de síntesis o combinación ocurren cuando dos o más reactivos forman un solo producto; generalmente se libera calor, siendo reacción exotérmica. También se les conoce como reacciones de adición.

En otras palabras, las reacciones de adición son aquellas en las cuales todos los átomos de los reactivos van a formar parte  de un único producto. Uno de los reactivos (al que se le suele llamar sustrato)  debe contener un enlace doble, o uno triple. Las Reacciones de Adición se dan principalmente en Química Orgánica donde los dobles y triples enlaces son comunes.

La característica principal de estas reacciones es que durante el proceso, el doble o triple enlace se rompe formando nuevos enlaces.

Las reacciones de adición son... 2 reactivos producen un solo producto.

PLEASE ANSWER ALL I WILL GIVE BRAINLIEST PLEASE!!

Answers

Which ones do you need help on?

When red copper wire is heated on a Bunsen burner flame, the surface of the copper turns black. The wrong statement below is

A. The surface of the red copper wire turns black because copper oxide
is formed.
B. The surface of the red copper wire turns black because copper is
reduced.
C. When the copper wire that has turned black is placed in dilute
sulphuric acid, blue colour can be seen in the solution
D. Mass is increased after the copper wire has turned black​

Answers

Answer:

I think d is wrong statement

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What are high tides caused by

Answers

Answer: the moons gravitational force

Explanation:

They happen because I go into the water.

Passenger airplanes take off in the troposphere but can eventually move into
the stratosphere. The planes may remain in the stratosphere until it is time to
land. Why do you think planes fly in the stratosphere?

Answers

Well that is because the stratosphere has lower temperatures and low air density. This gives the airplane less air pressure and with low air density they can fly faster :) Hope this helps.

Which of the following statements best describes an animal impacting the hydrologic cycle?
OA.
When an animal breathes out, water vapor from inside the animal's lungs is released into the air.
ОВ.
Water from precipitation is absorbed into an animal's fur and is then released inside the animal's body.
OC
Water that an animal drinks to keep their body healthy is permanently removed from the hydrologic cycle.
OD
When an animal digs a burrow, it disrupts the environment and stops water from evaporating in that area.

Answers

Answer:

When an animal breathes out, water vapor from inside the animal's lungs is released into the air.

Explanation:

The hydrologic cycle is the cycle of water movement throughout the environment. A is the only only one that "recycles" water;

As you walk up a mountain air pressure?
1. increases
2. decreases
3. remains the same

Answers

Answer:

decreases

Explanation:

Answer:

Decreases

Explanation:

There is less gas molecules and the air gets thinner the higher up you go

Which of the following best explains why bonds form between atoms?
A. Because the energy is at the minimum.
B. Because of the attractive forces between the nucleus of one atom and the electrons of the
atom.
other
C. Because atoms like to share electrons, which results in a stable system.
D. Because forming a bond fills up the valence shell of the atom giving a full octet.
19 Does ona moleculo of u

Answers

Answer:

D

Explanation:

I believe the answer is D because atoms are always seeking to fill up their outer electron shell/valence shell and want to gain a full octet.

4. The radius of a hydrogen atom is 37 pm (1pm 10"m). How many hydrogen atoms lined up side to side would it take to make 1.00 inch? (Hint start with 1.00 inch)

Answers

Answer:

V = 4/3 * 3.1416 * (37x10-10)3

V = 2.12x10-25 cm3

d = m/V

d = 1.67x10-24 / 2.12x10-25 = 7.87 g/cm3

The difference in temperature, let's convert F to ºC:

ºC = -80-32/1.8 = -62.22 ºC

dT = -92.6 + 62.2 = -30.4 ºC

The number of hydrogen atoms lined up side to side to make 1.00 inch is equal to 3.43 × 10⁷ atoms when the radius of one H-atom is 37 pm.

What is the radius of a hydrogen atom?

The atomic radius of a hydrogen atom is the distance between the center of the nucleus to the boundary of the electron that surrounds it.

Given, the radius of the hydrogen atom = 37pm

Then the diameter of the hydrogen atom = 37 + 37 = 74 pm

We know that 1 pm = 10⁻¹¹ m

Then the diameter of the one H - atom =  74 × 10⁻¹¹ m

The value of 1 m = 100 cm then the diameter of H-atom =  74 × 10⁻⁹ cm

As we know, the value of one inch = 2.52 cm

So, if 74 × 10⁻⁹ cm length takes H-atom = 1

Then, 2.52 cm would take hydrogen atoms = 2.52/  74 × 10⁻⁹ = 3.43 × 10⁷

Therefore, 3.43 × 10⁷ hydrogen atoms lined up side to side to make 1.00 inch.

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How much energy does a wave with a frequency of 7.0 x 1012 Hz have

Answers

Answer:

4.64 × 10⁻²¹ J/s

Explanation:

[Only if the wave travels at the speed of light]

Because a wave presumed to be at light speed is a photon, E = hf.

If frequency is not given, E = hc/λ

c is the speed of light in meters per second. c = 299, 792, 458 m/s.

λ is the wavelength which is dependent.

h or plancks constant = 6.62607004 × 10⁻³² m² kg / s.

E is in units of J / s or jules ( m² kg ) per second.

If the wave has a frequency of 7.0 x 10¹² Hz or 7 THz (Tera-Hertz).

E = (6.62607004 × 10⁻³⁴) × (7.0 × 10¹²) =

46.38249028 × 10⁻²² =

4.638249028 × 10⁻²¹ J/s ≈

4.64 × 10⁻²¹ J/s

PLEASE HELP ILL DO WHATEVER Bryan is doing a triathlon and you need to calculate his average speed for all three events. He swims 1km in 0.4 hrs. He rides his bike 50km in 1.5hrs and he runs 10km in 0.7 hrs.

Answers

Answer:

toda

Explanation:

:todo lo que tienes que hacer es hacer la cosa

Answer:

16.6km/h

Explanation:

Speed is distance/time.

speed for 1st event = 1/0.4 = 2.5km/h

speed for 2nd event = 50/1.5 = 33.3 km/h

speed for 3rd event = 10/0.7 = 14.28 km/h

Average speed = 2.5 + 33.3 + 14.28 /3 = 50/3 = 16.6 km/h

A rock has a mass of 15 grams and a
volume of 3 cm3. What is the density of the
rock?
HINT; The formula for density is:
density =
mass (g)
volume (cm)
A А
B
5 g/cm3
18 g/cm3
45 g/cm3

Answers

Answer:

5 g/cm3

Explanation:

Density = mass/volume

density = 15g / 3 cm3 = 5g/cm3

Answer:

3.34 g/cm3

Explanation:

The metal lid is stuck on a glass jar of jelly. Why does running hot water over the lid help you get the lid off? *

a. Thermal expansion causes the lid to expand making it easier to remove.
b. The heat chemically changes the glue around the edge releasing the lid from the jar.
c. The heat warms the jelly causing it to push the lid off the jar.
d. The heat makes the jar contract making it easier to remove.

Answers

Answer:

A, because as metal warms, it expands, and makes it easier to remove

Explanation:

^^

A, typing this due to 20 character requirement

If excess sodium sulfate react with 36 g of iron (III) phosphate and produce a 65.0% yield of sodium phosphate, how many grams of sodium phosphate are actually produced?

[tex]Na_2SO_4 + FePO_4[/tex] -> [tex]Na_3PO_4 + Fe_2(SO_4)_3[/tex]

Answers

Answer:

According to the stoichiometry, the theoretical yield is 11.5 grams. Multiplying this by 0.650, you get 7.48 grams.

Explanation:

When 5,946 J of heat is added to 79.75 grams of oil at 37˚C , the temperature increases to 64˚C. What is the specific heat of the oil?

Answers

Answer:cool kid

Explanation:cool kid

What happens to the number of valence electrons as you move from element 1 to element 18 on the periodic table?

A)the number of valence electrons decreases
B)the number of valence electrons decreases then increases in a predictable sequence
C)the number of valence electrons increases
D)the number of valence electrons increases then decreases in a predictable sequence

Answers

Answer:

C

Explanation:

Answer: The answer is C

Explanation:

What is chemical energy?
A.the potential energy in chemical compounds that is waiting to be released
B.energy that is formed or caused by movement
C.the movement of diecrons throughout the world
D. Energy from the son or any other light source

Answers

Answer:
I think it’s D
Explanation:
Chemical strength, Chemical compounds have energy contained in their bonds. Chemical energy may be emitted in the form of heat during a chemical reaction, which is known as an exothermic reaction. The body transforms the chemical energy in food into mechanical energy and heat.

How does heat transfer through conduction?
from the warm object to the cool object
D) from the cool object to the warm object
from the warm object into the air
from the air to the cool object

Answers

Answer:

from the warm object to the cool object

Explanation:

Think of heat as a straight line, and the warmer the object the higher its gradient. Now, if you have cold object is lower in heat energy, the heat energy from the warm object will go down the gradient to the cool object. Note, in conduction, there must a contact between the two objects.

How many molecules are there in 3.20 grams of NH4SO2

Answers

Answer:

0.0389757845886336

Explanation:

HELP ME ANSWER THIS

If you could somehow travel inside an atom and look around, what part of the atom would you want to look at? Why?

Answers

Answer:

I'd wanna see whats in the nuclues

Explanation:

Because its interesting to know what and how it really looks like up close. I also wanna know if an electron really has a light mass

Electrons make up most of the atom's mass. True or false ?

Answers

Answer:

No

Explanation:

Electrons have almost no mass so they cant make up the mass of an atom

False Hope we helped

write an Argument for people of westfield identifying the reddish brown substance. Plz answer this is due tomorrow!!

Answers

Answer:

The reddish-brown substance is a different color than the fertilizer, which is white, and the substance that makes up the pipe, which is gray. This means that they cannot be the same substance because they do not have the same properties. The atomic models show that the reddish-brown substance is made up of different repeating groups of atoms than the fertilizer and the pipe substance. The difference in atoms caused the difference in properties.

Explanation:

lul

People of westfield identifying the reddish brown substance and that substance is rust i.e. iron oxide.

What is rust?

Rust is a chemical compound which is formed by the oxidation reaction between iron and oxygen for the formation of iron oxide.

People of westfield observed the reddish brown color in the water, that is the rust compound which is obtained by the chemical reaction occur between the iron pipes and the compound present in the fertilizers that are present in water.

Hence, the reddish brown substance in rust.

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Light
6CO2 + 6H20
CGH12O6 +602
Chlorophyll
The equation above describes the chemical reaction that occurs during
photosynthesis. What happens to the light energy that is shown in the reaction?

Answers

Answer:

Light energy acts as a catalyst that speeds up the rate of photosynthesis

Explanation:

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April and Bill went to the grocery store to buy chocolate bars. April bought 4 small chocolate bars and 6 large chocolate bars , while Bill bought 4 small chocolate bars and 3 large chocolate bars. If April paid $16.50 and Bill paid $11.25, what is the price of a single large chocolate bar? Name the rest of the names of the riverdale characters:Betty _ _ _ _ _ _Jughead _ _ _ _ _FP _ _ _ _ _Archie _ _ _ _ _ _ _Veronica _ _ _ _ _Ethel _ _ _ _Polly _ _ _ _ _ _Cheryl _ _ _ _ _ _ _Kevin _ _ _ _ _ _Toni _ _ _ _ _Josie _ _ _ _ _Sweet _ _ _ What is 24 + 34 im giving brainliest Find the surface area of the rectangular prism 3. How have the seven years of shame living outside of society changed Hester's view of the world?Her irreverence for society's rules allows her to imagine radical possibilities.Her hatred for the Puritans who punished her drives her to think evil thoughts.Her loneliness without any romantic affection has made her bitter toward love.Her place of honor as one who aids the sick and poor has made her more kind. What is the central idea of the section "The Problem With Sugarcane?" In the sentence, the pronoun has an ambiguous antecedent.Kara was a skilled swimmer, and she did it every morning.Which version of the sentence is most clear?A skilled swimmer, Kara did it every morning.Being a skilled swimmer, Kara did it every morning.Kara did it every morning because she was a skilled swimmer.Kara was a skilled swimmer, and she swam every morning. Consider two cells: a stomach-lining epithelial cell dividing more thantwice a day and a liver cell dividing every year or two. Which cell islikely to be in Go phase and why? Investors buy a studio apartment for 120,000 . Of this amount, they have a down payment of 120,000 . Their down payment is what percent of the purchase price? What percent of the purchase price would a 6,000 $ down payment be? Charles Darwin used fossils as evidence to develop his theory of natural selection. Which event would most likely lead to a change in this theory? y=(8/7)x growth or decay? What are some bad things Hitler did??? 7x + 10 > 17x answer fast for brainliest How does a planets orbital radius relate to its period? What is the range of the function graphed below? Angeline bought p yards of polyester fabric priced at $4.25. per yard, and c yards of cottonfabric priced at $3.79 per yard.a. What expression could you use to determine the total cost of the fabric?b. If she bought 5 yards of polyester fabric and 2 yards of cotton fabric, how much didAngeline spend in all? Translate the verbal expression to an algebraic expression: Twice the sum of a number and 4. Gimme an answer quick. In a SENTENCE hey can someone help me please im new can anyone help A 25-N force accelerates a boy on a cart at 0.5 m/s2. What is the mass of the boy and the cart? (Hint: Solve newtons second law for mass).