plss help . i have no idea

Plss Help . I Have No Idea

Answers

Answer 1

Answer:

Protons and Neutrons have approximately the same mass.

Equal numbers of protons and electrons make an atom neutral.

Protons have a positive charge

Explanation:

Protons and Neutrons have approximately the same mass. - both are 1 amu

Equal numbers of protons and electrons make an atom neutral. - protons are +1 and electrons are -1, so they cancel each other if there are equal amounts.

Protons have a positive charge - this is true.


Related Questions

If you add more molecules but do not change the temperature or the pressure, what will happen to the system?
the molecules will move faster
O the volume will decrease
the volume will increase
the molecules will move slower

Answers

Answer:

the volume will increase

Explanation:

The kinetic energy of gas molecules depend upon the temperature . If temperature is increased , the molecules will move faster . When temperature is decreased , they move slower .

Hence when more molecules are added to a gas without changing its temperature , the velocity of gas molecules will remain unchanged .

Since pressure  is also constant , it is volume which will be increased .

It can be explained from universal gas formula as follows

PV = nRT

P , R and T is constant ,

V ∝ n

Volume is proportional to n which depends upon number of molecules .

So volume will increase if number of molecules increases .

i really need help on this one!!


Suppose Earth’s gravitational force were decreased by half. How would this change affect a game of basketball? Think about the motion of the players and the ball.

Answers

Answer:

Due to the decrease in the gravitational force, it will take longer time for ball to reach the ground while dribbling. Moreover, the hang time of players will also be longer. This means that the players will stay on air longer and will be able to jump higher.

i am a silvery white metal used to make salt​

Answers

Sodium lol
:.:.:.:.:.:.:

Arrange the following atoms in order of increasing size (radius).
Te, S, Se
K, Br, Ni
Ba, Si, F

Answers

Answer:

S<Se<Te

Br<Ni<K

F<Si<Ba

Explanation:

I really am bad at chemistry

Answers

Answer:

A, 4,3,3,4

B, 3,2,2,3

C, 2,6,2,3

D, 1,2,1, 1

which diagram would it be?

Answers

Answer:

2CH4 ------> 3H2 + C2H2

Explanation:

The law of conservation of mass states that atoms can neither be created nor destroyed in a chemical reaction.

The implication of this law is that the number of atoms of each element on the reactant side must be equal to the number of atoms of each element on the product side.

This law is only obeyed by the reaction, 2CH4 ------> 3H2 + C2H2

There were eight atoms of H on the left hand side as well as the right and side of the reaction equation. There were two atoms of C on both the left and right hand sides of the reaction equation respectively. Hence, the law was obeyed here.

Which three elements are combined in lithium sulfate ?

Answers

Answer:

jsidndnxjxixdjdbsjsjdidnsjdjdidndjd

3. All the deer in Horry County represent which of the following?

species
biome
population
community

Answers

Answer:

community

Explanation:

Answer:

The correct answer is population. I took the test and got it right.

What group on the periodic table is more reactive 5 or 6 and why?

Answers

Answer:

heheeheheh

Explanation:

Period 5 is more reactive because it is the alkali metals. They have properties and similarities with other alkali metals and other metals.

Why would it be harder to jump on the planet Jupiter than on Earth?
HELP PLSSS

Answers

The answer for your question is B!
THE ANSWER IS THE SECOND OPTION

_____ are bits and pieces of material that end up in a body of water.

Answers

Answer:

sediments

Explanation:

plsssss help with this ill give brainliest to first answer
How does the concept of conservation of mass apply to chemical reactions?

Answers

Answer:

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

The empirical formula of a compound is determined to be N2O5. If the molar mass of the compound is 108 g/mol, determine the molecular formula of the compound.

Answers

Answer:

N2O5

Explanation:

Empirical formular is the simplest formular of a compound and shows the atoms present in simple rations.

Molecular formular on the other hand shows the exact number of atoms of element present in a compound.

To obtain molecular formular from empirical formular;

(Empirical formular)n = Molar mass

where n is a simple integer.

(N2O5)n = 108 g/mol

Molar mass of N2O5 = 108 g/mol

(108) n = 108

n = 108 / 108 = 1

Molecular formular = (Empirical formular)n

Molecular formular = (N2O5)*1 = N2O5

In this question, the empirical formular is the same as the molecular formular

Which of an atom's electrons are involved in chemical reactions?

ANSWER: D

A. The electrons that make one isotope different from another

B. The electrons closest to the nucleus of the atom

C. The electrons that determine the atomic number of the atom

D. The electrons farthest from the nucleus of the atom​

Answers

it’s C

i hope i help you but if not DO NOT FORGET STAY SAFE AT HOME

Answer:

D.

Explanation:

The electrons farthest from the nucleus of the atom​

what is rusting of iron?​

Answers

Answer:

Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Unlike rust, which can flake off the surface of iron and steel objects, the layer of aluminium oxide does not flake off.

Explanation:

Rusting = oxidation reaction
Iron = reacts with oxygen and water to form hydrated iron oxide, we then start to see rust.
This prevents the metal from coming in any contact with air. Hope this helps :)

10
If velocity is positive, which would most likely yield a negative acceleration?
O O OO
A final velocity that is faster than an initial velocity.
A time that is less than a half hour.
An initial velocity that is faster than a final velocity.
A time that is greater than a half hour.

Answers

Answer:

An initial velocity that is faster than a final velocity

Explanation:

The relationship between velocity and acceleration is given as follow;

Acceleration = Change in velocity / Time

Change in Velocity = Final Velocity - Initial Velocity

From the formular, time is not able to affect the sign of the acceleration.

A negative acceleration is also referred to as deceleration and this occurs when there is a drop in velocity.

A drop in velocity occurs when the initial velocity is faster than the final velocity.

Calculate the mass of hydrochloric acid needed to react with 15.8 moles of zinc.
HCl + Zn -> H2 + ZnCl2

Answers

Answer:

240.1428

Explanation:

I hope this helps! :<

Heat Shield Rock 5. How did Heat Shield Rock get its name?​

Answers

Answer:

Heat Shield Rock is a basketball-sized iron-nickel meteorite found on the Meridiani Planum plain of Mars by the Mars rover Opportunity in January 2005.

Heat Shield Rock

Which type of mass movement is the most destructive?

creep
erosion
landslide
slump

Answers

Answer:

•landslide

Explanation:

Landslides are exceptionally destructive. Homes may be destroyed as hillsides collapse. Landslides can even bury entire villages. Landslides may create lakes when the rocky material dams a stream.

The type of mass movement is the most destructive landslide.

What is landslide?

Several forms of mass wasting that may include a wide range of ground movements, such as shallow or deep-seated slope failures, rockfalls, mudflows, and debris flows are known as landslips or landslide.

Sometimes more than one type of movement occurs within a single landslide, and analysis of each requires detailed interpretation of landforms and geological sections.

Landslides are exceptionally destructive. Homes may be destroyed as hillsides collapse. Landslides can even bury entire villages. Landslides may create lakes when the rocky material dams a stream.

There are measures that can be taken to reduce the potential for a landslide to occur, such as steep slope reinforcement, installing structures using pile foundations and checking surface drainage. The easiest way to prevent a landslide is to avoid building in areas that are – or might become – prone to landslides.

Given options are-

creep

erosion

landslide

slump

Therefore, The type of mass movement is the most destructive landslide.

To learn more about landslide click:

https://brainly.com/question/13151615

#SPJ7

____ power is generated from the heat released when uranium atoms split in a process known as fission.

Answers

This is definitely nuclear power , I hope it helps u :)

if you had a block square that weighed 5.00 grams what would be the length of each side

Answers

Answer:

[tex]l = 0.793[/tex] cm

Explanation:

Let us assume the density of block square [tex]10[/tex] g/cm³

As we know

Volume = [tex]\frac{Mass}{Density}[/tex]

Thus Volume of this block is equal to [tex]\frac{5}{10} = 0.5[/tex]

As we know volume of square block of side of length "l" is equal to [tex]l^3[/tex]

[tex]l^3 = 0.5[/tex]

[tex]l = 0.793[/tex] cm


Explain what happens to the particles in a substance during a physical change.

Answers

When a physical change occurs, the arrangement of particles within the substance may change, but the atoms in the molecules remain bonded together.

Answer:

Particles stay the same unless there is a chemical change whether the matter is solid, liquid or gas.

Explanation:

in physical changes no new materials are formed and the particles do not change apart from gaining or losing energy

what geologic structures are associated with earthquakes

Answers

Answer:

Seismic waves are produced when suddenly released some sort of energy stored in Earth's crust, usually when suddenly fracture and "slip" masses of rock straining against each other. Earthquakes occur most frequently along geological faults, narrow zones where rock masses shift in relation to each other.

Explanation:

Hope This Helped. :)

How many liters of water is necessary to make a 1.14 M solution with 5.10 mol KNO3?

Answers

4.47 liters of water.

in cubic
A box that is 35 inches X 35 centimeters X 0.065 yards will have a volume of
centimeters.

Answers

Answer:

V = 18,493.5114 cm³

Explanation:

Dimensions are;

L = 35 inches

W = 35 cm

H = 0.065 yards

Now, volume is given by;

V = LWH

But our dimensions need to all be in the same unit, so let's convert to cm.

L = 35 inches = 35 × 2.54 cm = 88.9 cm

H = 0.065 yards = 0.065 × 91.44 = 5.9436 cm

Thus;

V = 88.9 × 35 × 5.9436

V = 18,493.5114 cm³

which organs are part of the respiratory system ​

Answers

It includes the lungs, airways, and blood vessels. The muscles that power your lungs are also a part of the respiratory system.

_______ store food or pigments ( I'm learning about cells)

Answers

Plastids store food or pigments


True or false for these!!!! Please help

Answers

False
True
True
False
True
False
Hope this helps!

How does the rock cycle work help use a easy understanding small summary

Answers

Answer: this is how it works

Explanation:

The magma bursts through Earth's surface in the form of a volcano. Heat and pressure deep in the Earth makes some rocks change to metamorphic rock. Layers of rock get squashed and packed together and gradually harden to form sedimentary rock. The igneous rock gets broken down by weather, and the cycle begins again.

An ionic bond always forms between _____ ion with a positive charge and _____ ion with a negative charge.

Answers

Answer:

Cation and anion

Explanation:

Positive ion is known as cation and negative ion is known as anion

Other Questions
Clayton's bank offered him a 4.5% interest rate for his mortgage. If he purchases 3 points, what will his new rate be?A. 1.75% B. 0.375% C. 4.15% D. 4.125% what was the theatre world like in shakespheres time A line passes through the points (4, -1) and (2,3). What is the slope of the line? 20 points! (It says +5/+10 because thats the bonus points you'll get!!! :DWhat is the authors primary purpose in writing the selection?F To provide information about the best locations for chickadees to live in order to surviveG To describe the ways chickadees have adapted to be able to stay alive in cold climatesH To communicate the problems chickadees encounter as a result of their small sizeJ To explain how the feathers of chickadees function in different environments 16. Safety refers to the behaviors that protectchildren and adults from risks and injury. A. True B. False Linda had 25 ounces of water in her water bottle.After she drank x ounces of water, there were 10 ounces left. Select all the equations that represent this situation. * Read this quote by Frederick Douglass about the newspaper the Liberator.The paper became my meat and my drink. My soul was set all on fire. Its sympathy for my brethren in bonds.... sent a thrill of joy through my soul, such as I had never felt before!Which of the following best describes how The Liberator affected Frederick Douglass?Reading the paper angered Douglass and made him want to publish his own newspaper to reveal the truth aboutslaveryReading the paper inspired Douglass and helped him feel that others understood the problem of slavery.Reading the paper angered Douglass and made him want to lead an armed revolt to stop the spread of slavery.Reading the paper inspired Douglass and made him want escape to freedom in the North. A gray element that borders on the zigzag line of the periodic table, is ductile and malleable, but is not a very good conductor of heat or electricity is known as which of the following? A. metalB. halogenC. metalloidD. nonmetal Imagine that an area near where you live is being developed in order to attract tourists.The new developments may bring benefits, but some disadvantages, too. Discuss thistopic with the assessor. please help, I'm failing Spanish and have no idea what any of this means A model rocket was launched from a podium 5 meters above arean initial velocity of 98 m/s. The function that models height in mewith respect to time (in seconds) is h(t) = 5 + 987-4.9t2meters above ground atmeters) The Poolas family likes to hike along the Purple Mountain Trail. They hiked the same distance each day for 6 days, traveling a total of 25 miles. How many miles did they hike each day ? 4 2/31 1/5 ....... A sample of oxygen gas has a volume of 150 mL when its pressure is 0.587 atm at 155 K. If the pressure and temperature are increased to STP, what will the new gas volume be? 233 + 628 I want this answer pleaseTHX Harry rolls 2 fair dice. What is the probability of both dice showing a factor of 12? In the movie The Hunger Games, the Capitol (a term used to refer to what we would call the government) produced genetically enhanced birds called jabber jays to spy on rebels. Unexpectedly, these birds bred with mockingbirds, creating a new hybrid bird called the mocking jay. The Capitol did not intend for this to happen, and the bird became a symbol of rebellion. What lessons can we draw about genetic engineering from these examples? Could a scenario like this, where a genetically engineered organism hybridizes with a wild animal or plant, happen in the real world? Why or why not? A cell phone company offers two plans to its subscribers. At the time new subscribers sign up, they are asked to provide some demographic information. The mean yearly income for a sample of 39 subscribers to Plan A is $55,575 with a standard deviation of $8,970. For a sample of 29 subscribers to Plan B, the mean income is $59,475 with a standard deviation of $6,942.At the .025 significance level, is it reasonable to conclude the mean income of those selecting Plan B is larger? Hint: For the calculations, assume the Plan A as the first sample.The test statistic is ______. (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)The decision is _______the null hypothesis that the mean of Plan B is larger.The p-value is ______(Round your answer to 2 decimal places.) Solve 8 = 2^x+ 4Help meeee Use Of Feathers, Fat, and Freezing to answer questions 1-4.What is the authors primary purpose in writing the selection?