i need help with my assignment asap​

I Need Help With My Assignment Asap

Answers

Answer 1
1) taking drugs to prevent diseases

2) liver cirrhosis

3) valve

Related Questions

Compare physical change and chemical change in terms of the arrangement of the particles and the changes in number of atoms or types of atoms?​

Answers

Answer:

Don not sure if you got my last email I sent you a text but different question

During a physical change, the arrangement of particles may change but the mass, number of atoms and number of molecules will stay the same. ... During a chemical change, the mass and number of atoms is conserved, but the number of molecules is not always the same. Chemical reactions involve large changes in energy.

HELP AN ILL PUT U IN BRAINLIEST - THANKYOU

Answers

Answer:

D

Explanation:

The amount increased to a certain point then decreased

Answer:

it is D

Explanation:

Susie cooked sausages on a barbecue. Fat and water in the sausages changed state. which two changes of state occur during this process? a. Fat melted b. Water evaporated

Answers

Answer:

The options a and b are correct

Explanation:

This options provided to the question are the answers to the question. But for clarification. When the fat melts, the change of state that occurs here is from solid to liquid (which is called melting) while the change of state that occurs when the water evaporated is from liquid to gas (which is called evaporation).

What role does the Automated Surface Observing Systems (ASOS) play in weather forecasting?

Answers

Answer:

What role does the Automated Surface Observing Systems (ASOS) play in weather forecasting? It is a system of radar sensors used to track storms. It is the nation's primary weather-observing network. It provides weather reports much like the National Weather Service.

Explanation:

Answer:

the answer is c).It is the nation's primary weather-observing network.

Explanation:

If a radiation source has a wavelength of 4.76 x 10-6 m, then what is its frequency?

Answers

Answer: 6.3 * 10^15

Explanation:

wavelength = speed of light / frequency

so rewriting the equation gives frequency = speed of light / wavelength

so 3.0 *10^10 / 4.76 * 10^-6  = 6.3 * 10^15

How many atoms are in 1.65 mol of potassium

Answers

Answer:

9.93 × 10²³ atoms

Explanation:

The number of atoms of potassium can be found by using the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 1.65 × 6.02 × 10²³

We have the final answer as

9.93 × 10²³ atoms

Hope this helps you

What happens during every chemical change?
A. Heat or light is produced.
B. Two substances combine to make a different substance.
C. One type of matter becomes another type of matter.
D. Matter changes from one state to another.
pleaase helpppp

Answers

Answer:

D

Explanation:

ahh i think,

AHH JUST LET ME SEND ITTT

Answer:

its one type of matter becomes another type of matter

Explanation:

it was that for a p e x

How does a liquid substance change into gas? ​

Answers

Answer: heat

Explanation:

Is that heat boils the liquid and the liquid eventually evaporated into gas

what are the 3 types of water?​

Answers

Solid liquid gas. .

Answer:

3 Types of Water: Mineral, Spring and Prepared Water

check wether all the answers are correct or not. please?​

Answers

Answer:

c

your answer is correct

Calculate the volume (in cm³) of 935 grams of steel. The density of steel is 7.8 g/cm³. Give your answer to 2 decimal places.

Answers

Answer:

119.87 cm³

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

[tex]volume = \frac{mass}{density} \\[/tex]

From the question we have

[tex]volume = \frac{935}{7.8} \\ = 119.871794...[/tex]

We have the final answer as

119.87 cm³ to two decimal places

Hope this helps you

How many moles of Nitrogen gas are in 135L of Nitrogen gas at STP?

Answers

Explanation:

P×V=n×R×T

L×atm / mol×K

n= PV /RT

Description:

So as we know that our Known variables: are P, V, R, T and our unknown variables are n. N= PV / RV. = 6.02 moles.

Answer: 6.02  moles

Hope this helps.

The moles of nitrogen gas present in 135 L at STP have been 6.02 moles.

The nitrogen gas has been assumed to be the ideal gas. For an ideal gas, at STP or standard pressure and temperature, the volume of 1mole of gas has been 22.4 L.

The STP conditions have been 273.15 K temperature, and 1 atm pressure.

Since, moles in 22.4 L gas been 1 mole. The moles in 135 L gas has been:

22.4 L = 1 mole

135 L = [tex]\rm \dfrac{1}{22.4}\;\times\;135\;moles[/tex]

135 L gas = 6.02 moles.

The moles of nitrogen gas present in 135 L at STP have been 6.02 moles.

For more information about the volume at STP, refer to the link:

https://brainly.com/question/11676583

Hydrogen bond is not formed by 1) oxygen 2) nitrogen 3) chlorine
PLEASE HELP!!!
i mean which cant form hydrogen bond

Answers

Answer:

Chlorine

Explanation:

Even though chlorine is highly electronegative, the best answer is no, and in this class we will consider chlorine not to form hydrogen bonds (even though it has the same electronegativity as oxygen). This is because chlorine is large and its lone electron is in a diffuse orbital, covering a large area, and thus do not have the high charge density to act as a strong hydrogen bond acceptor. But it does form weak hydrogen bonds in solid crystalline hydrogen chloride at very low temperatures.

What can you infer about particle's size?

Answers

Answer:

particle size analysis, particle size measurement, or simply particle sizing is the collective name of the technical procedures, or laboratory techniques which determines the size range, and/or the average, or mean size of the particles in a powder or liquid sample.

Explanation:

PLEASE HELPPP

A(n) _________is a
group of atom. joined by chemical bonds.

THIS IS SCIENCE NOT CHEMISTRY

Answers

Answer; molecule

Explanation:

In the burning food investigation where you are trying to find out which food contains the most energy - what is the independent variable? *

Answers

Answer:

sorry but i dont know it but you can ask me other things

Rosa lives in New York City, which has an average altitude of 33 feet. When she is at home, it takes her 10
minutes to cook noodles in boiling water. She decides to go on a camping trip to Mount McKinley. Her
campsite is located 11,000 feet above sea level. Write the answer to each.
A) Where will the atmospheric pressure be higher: at her home or her campsite?

B) Where will the boiling point be higher?

C) Will the noodles cook faster, slower, or at the same rate at her campsite than home?

Answers

Answer:

Home

Home

Slower

Explanation:

A liquid starts changing its phase to gas when the two pressures become the same i.e., vapor and atmospheric.

At a higher altitude the atmospheric pressure lowers so little amount of heat is required for the vapor pressure of water to equalize with the atmospheric pressure at a higher altitude.

The pressure at the Rosa's home will be higher and lower in the campsite.

The boiling point will be higher at her home.

As the boiling point is lower in the campsite the water used in cooking noodles will evaporate faster this may lead to the noodles being under cooked. The water may evaporate before the noodles have cooked. So, the noodles will cook at a slower rate at the campsite and faster in her home.

A. The atmospheric pressure at Rosa's home is higher than her campsite.

B. The boiling point of water at Rosa's home is higher.

C. The noodles will be cooked faster at Rosa's home compared to at the campsite

A. The pressure has been the force that has been exerted by the molecules against each other, The higher altitude has lesser air molecules, which resulted in the lower pressure.

Since the pressure at 33 feet has been higher as than the pressure at 11,000 feet altitude, the atmospheric pressure at Rosa's home is higher than her campsite.

B. The boiling point has been the temperature at which liquids have been converted to gases. With the decrease in atmospheric pressure, there has been a lowering in the boiling point as well.

The atmospheric pressure at Rosa's home is higher compared to her campsite. Thus, the boiling point of water at Rosa's home is higher.

C. The lower atmospheric pressure at the campsite has been responsible for the lower boiling point of the temperature, This implies that water has converted to steam at lower temperatures. The lower temperature of water requires more time for the noodles to be cooked.

Thus, the noodles will be cooked faster at Rosa's home compared to at the campsite.

For more information about the atmospheric pressure, refer to the link:

https://brainly.com/question/1393320

When is evaporation used

Answers

To separate a solid from a liquid

before the water goes back in the enviorment

5 points
An atom has a mass number of 65. Its number of
neutrons is the sum of its atomic number and 3. How
many protons, neutrons, and electrons does this atom
have? What is the identity of this atom? *
(justify your answer step by step!)

Answers

Answer:

25 protons, 25 electrons, 30 neutrons. ......... manganese is the identity

Explanation;

x = atomic number -# of protons

The number of neutrons = x + 5

The mass number (sum of protons + neutrons) = 55.

x + (x + 5) = 55

2x + 5 = 55

2x = 50  

x = 25; atomic number 25 = manganese (Mn)

so ;

25 = Protons

30=Neutrons  

25=Electrons

Pedro's book weighs 19/4 pounds. Blanca's book weighs 17/7 pounds. Use estimation to determine about how much more Perdro's book wweighs than Blanca's.

A 1lbs
Sorry I meant math.
B 2lbs

C 6lbs
D 7lbs

Answers

Answer:

2pounds

Explanation:

Given parameters:

Weight of Pedro's book  = [tex]\frac{19}{4}[/tex] pounds

Weight of Blanca's book  = [tex]\frac{17}{7}[/tex] pounds

Unknown:

How much more does Pedro's book weigh more than Bianca's book ?

Solution:

To Solve this problem, let us convert the fractions to decimal;

   Weight of Pedro's book  = 4.75 pounds

   Weight of Bianca's book  = 2.43 pounds

Differences  = 4.75pounds - 2.43 pounds

                     = 2.32 pounds

Estimating gives 2pounds

Ice packs are used to make things cold or to add cold to an injury. Some people use insulated cups to keep things like coffee warm. How are these cups different from an ice pack? How might the molecules inside an ice pack be different from the liquid inside of an insulated cup?

Answers

wow isn't this interesting, I never would've thought to find u on here

For an atom of chlorine-35, what number would you put as the SUPERSCRIPT in the atomic notation?

Answers

Answer:CI.Strictly speaking,the subscript is unnecessary ,since all atoms of cholorine have 17 protons.Hence the isotope symbols are usually written withouth the subscript.³CI and ³CI

EXPLANATION:I HPE IT HELP THANK YOU!

HELP AGAIN PLSS:
True or False: When water evaporated, the molecules broke apart into separate atoms.

Answers

This is true


Because when water evaporates molecules break and separate into different atoms

Which of the following characterizes a reaction at equilibrium?​

Answers

I’m pretty sure the correct answer is D.

A reaction comprises a reactant and a product. It is said to be in equilibrium when the rates for the forward and reverse reactions are equal. Thus, option D is correct.

What is an equilibrium reaction?

An equilibrium reaction is a thermodynamic condition where the reactants and the products are at a stable position even before and after the reaction. They remain fixed and do not vary with the addition of any catalyst.

In the equilibrium position, the reaction rate of the forward (product formation) and reverse (reactant formation) remains the same and is seen in the reversible reactions only.

The amount of the products and the reactant remains constant till the temperature is constant but may vary if the tempearture is varied.

Therefore, the rate of reverse and forward are equal in the equilibrium reaction.

Learn more about equilibrium reaction here:

https://brainly.com/question/14926771

#SPJ5

which of the metal is suitable to store lead nitrate solution​

Answers

Explanation:

The nitrate anion is a univalent (-1 charge) polyatomic ion composed of a single nitrogen atom ionically bound to three oxygen atoms (Symbol: NO3) for a total formula weight of 62.05. Lead Nitrate is generally immediately available in most volumes.

A physical change is when the atoms combine to create a new product.

>True
>False

Answers

False. A physical change does not create a new substance.

Which element below is Shiny, good conductor of heat and electricity, malleable and ductile? *
1 point
Chlorine
Nitrogen
Magnesium
Neon

Answers

Answer:

magnesium

Explanation:

it is the only metal in the choices. everything else is on the right side of the old line that separates metals and nonmetals on the PPT. nonmetals aren't, shiny or good conductors or malleable or ductile.  only metals can have those qualities. the only metal is magnesium

Balance the following reaction. A coefficient of "1" is understood. Choose the option "blank" for the correct answer if the coefficient is "1."
C3H8 + O2 → CO2 + H2O

Answers

C3H8 + 5O2 —-> 3CO2 + 4H2O

Answer:

Hope this helps!

Explanation:

When will heat transfer stop?

Answers

Answer:

Heat

Explanation:

Heat will always flow from the warmer object to the colder object. The heat transfer will stop when the two objects are at the same temperature and reach thermal equilibrium.

Hope this helps!

Answer:

when both object are the same temperature

Explanation:

Does Rubidium (Rb) have high or low electronegativity?

Answers

Answer:

high

Explanation:

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