PLS HELP ME!!!!!!!!!!!!!! I DON'T HAVE A LOT OF TIME !!!!!!!!

PLS HELP ME!!!!!!!!!!!!!! I DON'T HAVE A LOT OF TIME !!!!!!!!

Answers

Answer 1

Answer: Well i think i have saw this i wolud say B hope this helps

Explanation:


Related Questions

You start with a container that is 8L big and the temperature in the room is 326K.
If the you take the container out in the heat at 352K, how big will it get?

Answers

Answer:

The new volume is 8.64 L.

Explanation:

Charles's Law consists of the relationship that exists between the volume and the temperature of a certain quantity of ideal gas, which is maintained at a constant pressure. For a given sum of gas at constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases.

In summary, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the quotient that exists between the volume and the temperature will always have the same value:

[tex]\frac{V}{T} =k[/tex]

Being an initial state 1 that modifies its conditions until a final state 2, it is fulfilled:

[tex]\frac{V1}{T1} =\frac{V2}{T2}[/tex]

In this case:

V1= 8 LT1= 326 KV2= ?T2= 352 K

Replacing:

[tex]\frac{8L}{326 K} =\frac{V2}{352 K}[/tex]

Solving:

[tex]V2=352 K*\frac{8L}{326 K}[/tex]

V2= 8.64 L

The new volume is 8.64 L.

What number is pointing to the area where magma is less dense due to
heat?

Answers

Answer:

I think it's 2

Explanation:

The magma gets so hot, it floats up before cooling and sinking again

Question 15 (3 points)
How are cations and anions related to metals and nonmetals?

Answers

Answer:

uff mere dil ma ture kali chadiya ha uff tumi apne buni ha

Answer:

Cations (positively-charged ions) and anions (negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. ... And all of them form an anion with a single negative charge.

After eating, nutrients must be oved to other parts of the body. Which of the following systems will transport these nutrients.

nervous
digestive
circulatory
excretory

Answers

The circulatory system

Answer:

The circulatory system

Explanation:


3)
:NEN:
How many nonbonding electrons are on each nitrogen atom?
A)
0
B)
2
c)
4
D)
6
4)
-))

Answers

Answer:

your answer is C

Explanation:

The electron-dot structure of NH3 places one set of nonbonding electrons in the valence shell of the nitrogen atom. that means there are three bonded atoms and one single pair for a coordination number of four surrounding  the nitrogen, the same occurs in water to. along with the Lewis dot structure for ammonia, NH3. the non bonding atoms are basically like hydrogen atoms the try to refuse to bond and they can't be fused unless the right conditions are met.

6.
Ammonia (NH3) acts as a weak base in aqueous solution. What is the acid that reacts with this base
when ammonia is dissolved in water?
(A) NHA
(B) H2O
(C) Oxygen, which is always dissolved in water
(D) None of the above, there are no acids in pure water

Answers

Answer:

90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on eight comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you.!Explanation:

Ammonia acts as a weak base in aqueous solution. Water is the acid that reacts with this base when ammonia is dissolved in water.

What is a base?

According to the Arrhenius concept, base is defined as a substance which yields hydroxyl ions on dissociation.These ions react with the hydrogen ions of acids to produce salt in an acid-base reaction.

Bases have a pH higher than seven as they yield hydroxyl ions on dissociation.They are soapy in touch and have a bitter taste.According to the Lowry-Bronsted concept, base is defined as a substance which accepts protons .Base react violently with acids to produce salts .Aqueous solutions of bases can be used to conduct electricity .They can also be used as indicators in acid-base titrations.

They are used in the manufacture of soaps,paper, bleaching powder.Calcium hydroxide ,a base is used to clean sulfur dioxide gas while magnesium hydroxide can be used as an antacid to cure acidity.

Learn more about base,here:

https://brainly.com/question/12445440

#SPJ6

Which property of sulphuric acid makes it suitable to use as a catalyst for the preparation of esters?​

Answers

In Fisher esterification, sulfuric acid is used as a catalyst and its function is to convert the carboxylic compound in its conjugate acid. This favours the nucleophilic attack of the alcohol. To act as a catalyst you need a strong acid, therefore sulphuric acid is suitable for this kind of reaction.

Oleic acid's melting point is 14°C and it's boiling point is 360°С. What phase is this substance
at room temperature 25°C?*

A. Solid
B. Liquid
C. Gas
D. Impossible to tell

Answers

The answer is C a gas

Help please if link will report

Answers

All i know is the first one is electromagnet, the second one is attraction, the third is magnetism, the fourth is magnetize, the fifth is repulsion, the sixth is lines of force, the seventh is magnetic pole, the eighth is electromagnetism, the ninth is magnetic field, and the tenth is permanent magnet

Help please see attached screenshot

Answers

Answer:

balanced equation of glucose

6CO2 + 6H2O----------C6H12O6 + 6O2

in the presence of sun light.

How could a scientist use a sedimentary rock to provide evidence that the right k cycle is a valid scientific model

Answers

Answer:

By closely observing the sedimentary rock and the presence of organic materials and mineral grains in sedimentary rocks

Explanation:

The rock cycle explains how the three types of rock are formed over time from each other.

To use a sedimentary rock to prove that the rock cycle is a valid scientific model is by, closely observing the sedimentary rock. when the sedimentary rock is closed observed the principle of superposition will be seen ( i.e. younger segments deposited on top ), the presence of organic materials and mineral grains that can be found in Igneous or Metamorphic rocks can also be seen and this shows that Sedimentary rocks pass through the rock cycle. hence this proves that the rock cycle is a valid scientific model overtime  

7
Why might living in a high-pollution area have a negative effect on a person's
thyroid?
I

Answers

Answer: since the thyroid produces hormones, the chemicals made by our bodies. Living where there is a lot of pollution would expose a person to many other chemicals -- gas fumes, contaminants in food and water, and so on. I hope this helped!!

When converting from grams to the must be used as a conversion factor

Answers

moles=grams/molar mass

Which of these is a behavioral adaptation?

Answers

Answer:

a brown bear hibernates and become inactive during winter

Which shows substances placed in order from strongest to weakest attractive forces at room temperature?
es )
A)
1. Br (s) 2. Br (9) 3 Br (1)
B)
1. Br (s) 2. Br (1) 3 Br (9)
1. Br (9) 2. Br (1) 3 Br (s)
D)
1. Br (aq) 2. Br (1) 3 Br (9)
Dhusical Dror

Answers

Explanation:

es la b es ciertos que es el resultado

The initial pressure of a balloon floating in the air is 0.53 atm. After the balloon has reached a certain point in the sky, the volume of the air particles in the balloon is 4.3 liters at a final pressure of 0.42 atm. What was the initial volume of the balloon?

Answers

Answer:

The initial volume of the balloon is 3.41 L.

Explanation:

The gas laws are a set of chemical and physical laws that allow determining the behavior of gases in a closed system. The parameters evaluated in these laws are pressure, volume, temperature, and moles.

As the volume increases, the gas particles (atoms or molecules) take longer to reach the walls of the container and therefore collide with them fewer times per unit of time. This means that the pressure will be lower because it represents the frequency of collisions of the gas against the walls. In this way pressure and volume are related, determining Boyle's law which says:

"The volume occupied by a certain gaseous mass at constant temperature is inversely proportional to pressure"

Boyle's law is expressed mathematically as:

Pressure * Volume = constant

or P * V = k

Now it is possible to assume that you have a certain volume of gas V1 that is at a pressure P1 at the beginning of the experiment. If you vary the volume of gas to a new value V2, then the pressure will change to P2, and it will be fulfilled:

P1 * V1 = P2 * V2

In this case:

P1= 0.53 atmV1= ?P2= 0.42 atmV2= 4.3 L

Replacing:

0.53 atm* V1= 0.42 atm* 4.3 L

Solving:

[tex]V1=\frac{0.42 atm* 4.3 L}{0.53 atm}[/tex]

V1= 3.41 L

The initial volume of the balloon is 3.41 L.

Help please!!!!!!!!!!!!!!!!!!!!!!!!

Answers

The answer is n2+3h2=2nh3

The phenomenon that allows water to travel against gravity through thin openings (for
example, to the top of trees) is called:

Answers

Answer:

El motor que las permite vencer la gravedad es la evaporación del agua que tiene lugar en las hojas.

Explanation:

C + O2 + CO2
What type of reaction occurs when carbon dioxide is formed from carbon and oxygen?

Answers

Answer:

combustion reaction.

Explanation:

It is a combination reaction as carbon combines with oxygen to form carbon dioxide. It is a combustion reaction as carbon is burnt in the presence of oxygen.

Two tons of water is pumped into a tank 15 ft. High in 5 minutes. Determine the power output of the pump. (Note: One ton is equal to 2,000 lb. And remember to convert the minutes to seconds.)

Answers

Answer:

200 lb•ft/s

Explanation:

From the question given above, the following data were obtained:

Force (F) = 2 tons

Time (t) = 5 mins

Height (h) = 15 ft

Power (P) =?

Next, we shall convert 2 tons to pound. This can be obtained as follow:

1 ton = 2000 lb

Therefore,

2 tons = 2 × 2000

2 tons = 4000 lb

Next, we shall convert 5 mins to seconds. This can be obtained as follow:

1 min = 60 s

Therefore,

5 mins = 5 × 60

5 mins = 300 s

Finally, we shall determine the power of the pump. This can be obtained as follow:

Force (F) = 4000 lb

Time (t) = 300 s

Height (h) = 15 ft

Power (P) =?

P = F × h / t

P = 4000 × 15 / 300

P = 60000 / 300

P = 200 lb•ft/s

Thus, the power of the pump is 200 lb•ft/s

Answer:

It's 200 ft-lb/sec

Explanation:

I did it before!

Given : 4.50 molte

How many moles of ammonia would you get if 4.50 moles of hydrogen gas
reacted

Answers

you would get 35.................

How many atoms are in 25.0 moles of calcium (Ca)?

Answers

Answer:

1.8066e+24 is the answer

What is needed for our cells to get energy from our food?

Answers

Answer:

cellular respiration is needed for our cells to get energy from our food.

Explanation:

Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.

Gold can be pounded out to make a foil only a few atoms thick because of
A. Metallic Bonds
B. Ionic Bonds
C. Valence Bonds
D. Covalent Bonds

Answers

Answer:

A. Metallic Bonds

Explanation:

Metallic bonding is a type of chemical bonding that arises from the electrostatic attractive force between conduction electrons and positively charged metal ions.

what is the advantage of rusting​

Answers

Answer:

Provide more strength

Explanation:

Rust is metal that has been oxidised . Oxides are usually more fragile and porous than their crystals metal equivalents. Some oxides, such as Aluminum oxide, are useful because they have a thin, strong shell that protects the metal from further corrosion.

. Chalk is made of CaCO​ 3​ . How many molecules are in 5 grams of chalk?

Answers

Answer:

20.02 grams of chalk.

Explanation:

A sample of neon gas is at a temperature of 60°C and has a volume of 300 cm. What is the volume of the gas if it is heated to 100°C at a constant pressure?​

Answers

Answer:

336.04 cm

Explanation:

T1 = 60+273 = 333K

T2 = 100+273 = 373K

V2 = (V1×T2)/T1

V2 = 300×373/333

V2 = 336.04 cm

what is the pH when h+=0.045 M?

Answers

Answer:

pH≈1.35

Explanation:

-log(0.045)≈1.35

Need help on this question asap please

Answers

Answer:

The correct answer is - 14.

Explanation:

In the given molecular formula of the aluminum sulphite which is Al2(SO3)3, this molecular formula there different type of elements are bonded together to form this compound each element has a specific number of atoms present. This compound has three elements that are aluminum, sulfur, and oxygen and the atoms are present are:

Al = 2 atoms represented by subscript

S = 3 atoms represented as whole subscripts of sulfite

O = 9 atoms 3 inside bracket and 3 outside of bracket that multiplies.

Thus, total number of atoms are 2+3+9 = 14

A solution's hydrogen ion concentration is 1 x 10-5M.
What is the pH?

Answers

Answer:

pH=5

Explanation:

-log(1 x 10-5)=5

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