will mark brainliest

Answer:

Globular clusters are densely packed collections of ancient stars. Roughly spherical in shape, they contain hundreds of thousands, and sometimes millions, of stars. Studying them helps astronomers estimate the age of the universe or figure out where the center of a galaxy lies.

Explanation:

Answer:

because Sulphur is written as S₂

Explanation:

Answer:

Is C

Explanation:

Answer:

P1 =4 atm

T1= 20°C

P2=1 atm

T2=?

According to Gay-Lussac's Law or Third Gas Law,

P1T2=P2T1

4×T2=1×20

T2= 20/4

T2= 5°C

Answer At 5°C temperature does a gas at 1.00 atm !

Answer: True

Explanation:

Explanation:

It explodes when a spark is present.. letter D

Answer:

A. It is flammable.

Explanation:

physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity.

Answer:

Are memories stored in just one part of the brain, or are they stored in many different parts of the brain? Karl Lashley began exploring this problem, about 100 years ago, by making lesions in the brains of animals such as rats and monkeys. He was searching for evidence of the engram: the group of neurons that serve as the “physical representation of memory” (Josselyn, 2010). First, Lashley (1950) trained rats to find their way through a maze. Then, he used the tools available at the time—in this case a soldering iron—to create lesions in the rats’ brains, specifically in the cerebral cortex. He did this because he was trying to erase the engram, or the original memory trace that the rats had of the maze.

Lashley did not find evidence of the engram, and the rats were still able to find their way through the maze, regardless of the size or location of the lesion. Based on his creation of lesions and the animals’ reaction, he formulated the equipotentiality hypothesis: if part of one area of the brain involved in memory is damaged, another part of the same area can take over that memory function (Lashley, 1950). Although Lashley’s early work did not confirm the existence of the engram, modern psychologists are making progress locating it. Eric Kandel, for example, spent decades working on the synapse, the basic structure of the brain, and its role in controlling the flow of information through neural circuits needed to store memories (Mayford, Siegelbaum, & Kandel, 2012).

Many scientists believe that the entire brain is involved with memory. However, since Lashley’s research, other scientists have been able to look more closely at the brain and memory. They have argued that memory is located in specific parts of the brain, and specific neurons can be recognized for their involvement in forming memories. The main parts of the brain involved with memory are the amygdala, the hippocampus, the cerebellum, and the prefrontal cortex 

Answer:

memory

Explanation:

for study island

Answer:

It was the fifth radioactive element discovered, and is typically a colorless gas that puts off an insane glow when frozen.

Answer:

2.3 L

Explanation:

A change in pressure-volume at constant temperature is described by the Boyle's law. The mathematical relationship between initial pressure and volume (P₁ and V₁) and final pressure and volume (P₂ and V₂) is given by:

P₁V₁ = P₂V₂

We have the following data:

initial pressure: P₁= 2.5 atm

initial volume: V₁ = 9.1 L

final pressure: P₂= 9.8 atm

Thus, we introduce the data in the mathematical expression and calculate the final volume V₂, as follows:

V₂ = P₁V₁/P₂ = (2.5 atm x 9.1 L)/9.8 atm = 2.3 L

Therefore, the volume of the canister is 2.3 L.

Answer:

The meet

Explanation:

Answer:

D. Electrical energy is changed into mechanical energy

Explanation:

When you turn on the fan, the electricity that is given through the power outlet allows the fan to have the available energy to spins the fan blades. By the fan's blades spinning, this is a movement that can be described as mechanical energy.

Answer: 8

Explanation: just did the same question and got it right

Answer:

You transfer kinetic energy from you foot to the ball.

Explanation:

Energy cannot be created or destroyed.

Answer:

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Answer:

No, it is not.

Explanation:

Oil is a non-renewable source of energy. ... Burning oil can pollute the air. Much of our oil has to be imported and it is becoming more and more expensive as reserves reduce and imports increase. Producing electricity from crude oil is expensive compared to other fossil fuels such as coal or gas.

*You Can put this in your own words

Answer:

The pressure of O₂ is 0.8 atm.

Explanation:

The pressure exerted by a particular gas in a mixture is known as its partial pressure. So, Dalton's law states that the total pressure of a gas mixture is equal to the sum of the pressures that each gas would exert if it were alone:

PT = PA + PB

This relationship is due to the assumption that there are no attractive forces between the gases.

In this case:

PT=Pnitrogen + Pcarbon dioxide + Pother gases

Being:

and replacing:

PT= 593.4 mmHg + 3 mmHg + 7.1 mmHg

you get:

PT= 603.5 mmHg

Being 760 mmHg= 1 atm, you get:

PT= 603.5 mmHg= 0.8 atm

The pressure of O₂ is 0.8 atm.

Explanation:

Its value is 6.02 kj/mol. This means for every mole of ice we melt we must apply 6.02 kj of heat. We can calculate the heat needed with the following equation:

q

=

n

×

Δ

H

where:

q

= heat

n

= moles

Δ

H

= enthalpy

In this problem we would like to calculate the heat needed to melt 35 grams of ice at 0 °C. This problem can be broken into three steps:

1. Calculate moles of water

2. multiply by the enthalpy of fusion

3. Convert kJ to J

Step 1: Calculating moles of water

35

g

×

(

1

m

o

l

18.02

g

)

=

1.94

m

o

l

s

Step 2: Multiply by enthalpy of fusion

q

=

n

×

Δ

H

=

1.94

×

6.02

=

11.678

k

J

Step 3: Convert kJ to J

11.678

k

J

×

(

1000

J

1

k

J

)

=

11

,

678

J

Finally rounding to 2 sig figs (since 34°C has two sig figs) we get

q

=

12

,

000

J

One last note, if the temperature were not 0 °C then the ice would have to be heated in addition to melted. This would be a phase change problem combined with a heat capacity problem.

Answer:

the periodic table is G.

The periodic table has the elements placed in the locations that match the information on the flash cards is F.

The term "periodic table" refers to an arrangement of all known elements in order of increasing atomic number and recurrent chemical attributes. The periodic table is organized into 118 elements.

The term "periodic table" can also refer to a table that lists all known chemical elements in rows and columns.

In the F table, L is found in alkaline earth metals while M is found in transition metals. M has more valence electrons than L, while L is more reactive than M.

Thus, the  periodic table has the elements placed in the locations that match the information on the flash cards is F.

To learn more about periodic table, refer to the link below:

https://brainly.com/question/11155928

#SPJ5

Answer:

a. 0.66 atm

Explanation:

Pi = 750 torr = 0.99 atm. Pf = ?

Vi = 400 ml Vf = 600ml

Using PiVi = PfVf

Then 400ml × 0.99atm = Pfatm × 600ml

Solving for Pf, we have,

Pf = (400ml × 0.99atm)/600ml

Pf = 0.66atm

Answer:

distance and time

Explanation:

total distance/ total time

Answer:

6.1

Explanation:

Because if you get to the large mark it would be 5 but since its not at 5, it would be 6.1 as you can see in my drawing. It aligns perfectly with 6.1.

Explanation:

can you tell us what do want help with?

Answer:

Ok I will give you answer

Answer:

3

Explanation:

Answer:

3. 0.50 mol

Explanation:

Answer:

250k

I Really This Helps A Little Bit.