A sample of helium gas has a volume of 1.25 L and a temperature of 22 °C, under a constant pressure. What is the new volume if the temperature is increased to 45 °C?
Answer:
the new volume is 1.35L
Explanation:
The computation of the new volume in the case when the temperature rises to 45 degrees is shown below:
GIven that
Volume = 1.25L
And, the temperature is 22 degrees celsius
So, [tex]T_1[/tex] = (275 + 22)k
= 297 k
Now
[tex]T_2[/tex] = (275 + 45)k
= 320 k
Now as it is a constant pressure
So, the new volume is
[tex]\frac{V_1}{T_1} = \frac{V_2}{T_2} \\\\V_2 = \frac{V_1}{T_1}\times T_2 \\\\= \frac{1.25}{297}\times 320[/tex]
= 1.35L
hence, the new volume is 1.35L
Need Answer Quick
Copper is used in wiring because its metallic bonding gives its _______ a high degree of freedom and the material a high conductivity.
electrons
neutrons
protons
Answer:
Electrons
Explanation:
can someone pls help
Answer:
1.2km=1,200,000! hope this helps
What is an element?
What is it represented by?
What is it made up of?
Give an example
Answer:
what is an element?
element is a pure substance which cannot be broken down by chemical means
what is it represented by?
By its symbol and atomic number
what is it made up off?
It is made up of it's owm type of atom.
Example
carbon,oxygen,hydrogen,gold,silver,iron
Which compound is the strongest acid?
O H2S
O HBr
O Li2O
O LiBr
Answer
D. Malleability because he is most likely going to show how you can easily roll pizza dough
<*> blue misssst <*>
Explanation:
Which of the following elements has the greatest metallic character?
Rb
Mo
Au
B
Answer:
Au. fifififiof
Explanation:
djdjdjndsksidndndnendnnd
Answer:
Rb
Explanation:
What is an organism and microorganisms?plz help ASAP!
what happens first during cellular respiration
Answer:
glcolysis
Explanation:
Glcolysis uses glucose to create ATP within the cytoplasm of the cell.
Answer:
the answer is glycolysis
Explanation:
are carbon atoms alive and why? (plz)
Answer:
yyes they are lovely . . . . .
Answer:
No they are not alive
Explanation:
Since they are just atoms how would they be alive? They also make up all living things so how would they be made of themselves
After developing a hypothesis, a scientist is ready to test it by A. gathering facts and evidence. B. conducting an experiment. C. posing questions about an observation. D. communicating with other scientists.
Answer:
B.
Explanation:
Which groups of the periodic table want to gain electrons? What kind(s) of elements are these groups
Answer:
Elements that are metals tend to lose electrons and become positively charged ions called cations. Elements that are nonmetals tend to gain electrons and become negatively charged ions called anions. Metals that are located in column 1A of the periodic table form ions by losing one electron.
Explanation:
The groups in the periodic table that want to gain electrons are groups; 15, 16 and 17. The members of these groups are mostly nonmetals.
The periodic table is composed of 18 groups and 8 periods of elements. Groups 1 - 13 are metals while groups 15 -18 are nonmetals. Group 14 consists of a mixture of metals and nonmetals.
The nonmetals usually accept electrons while metals electrons easily donate electrons. Elements of group 18 neither receive nor donate electrons because they have a complete octet.
Nonmetals of groups 15 -17 gain electrons easily.
Learn more: https://brainly.com/question/16360348
A scientist wants to predict the weather which of the following spheres should he most directly study
Trying to find the energy in calories but, I don't understand the last part of the formula. Please help!
energy in calories = (mass of water)(change in water temperature)(0.001 Cal/g·°C)
Food Item: Peanut
Mass Of Food (g): 0.3
Mass Of Water (g): 51.4
Initial Water Temperature (°C): 21.2
Final Water Temperature (°C): 39.8
Energy (calories): ???
Answer:
Energy: (51.4)(39.8-21.2)(0.001) = 0.956Cal/g°C
Which of the following is NOT a trait of a scientist?
We
Curiosity
O Creativity
Logical
O inaccurate
Answer:
I think inaccurate is not a trait.
Explanation:
1. How many miles are in 1,000,000 centimeters?
Answer:
I looked it up and it said 6.214
what is the electron configuration for ground-state Boron
Answer:
The remaining electron will go in the 2p orbital. Therefore the B electron configuration will be 1s22s22p1.
In the Inca civilization what was the quipo used for?
It involved knots in strings called quipu. The quipu was not a calculator, rather it was a storage device. Remember that the Incas had no written records and so the quipu played a major role in the administration of the Inca empire since it allowed numerical information to be kept.
What does the force of gravity between two objects depend on?
A. The masses of the two objects and the distance between them
B. Only the mass of the smaller object and its distance from the
larger object
C. Only the masses of the two objects
D. The mass of the smaller object and the speed at which it's moving
Answer:
A
Explanation:
Answer:
Explanation:
The formula for the force of gravity is
F=G * m1 * m2 / r^2
G is a constant. It does not change with the use of the formula. There are 2 masses, so the force depends on the masses.
The right hand side is divided by r^2. that's a distance. So that's the other quantity influencing the Force.
B: incorrect. Both objects have masses. That determines the force between them.
C: incorrect. It's also the distance between them.
D: incorrect. The formula contains nothing to indicate that velocity is important.
The answer is A
N 2 , O 2 , and Cu are elements. True False
Answer:
True
Explanation:
N2 is nitrogen.
O2 is oxygen.
CU is copper.
They are all elements. Hope this helps!
You are a marine biologist who wants to study what type of zooplankton (microscopic animals that live in the ocean and feed larger organisms) inhabit a particular area of the Pacific Ocean. You have taken your samples, but now need to collect your data. What advantage would using a compound light microscope have over using a dissecting microscope? can anyone help me
Answer:
The advantage of the compound light microscope over the dissecting microscope is the magnification power of the telescope. Compound light microscope magnifies from 40x up to 1,000x while dissecting microscope magnifies up to 40 x only. In this regard, more magnification power is advantageous to view smaller objects.
Help I don't understand how to do this I need answerssss
Answer: what is this sorry
The dimensions of water tank are 1.0 m wide by 3.25 m long by 1.50 m tall what is the volume of the water tank t
Answer:
4.9 m^3
Explanation:
volume= 1.0 x 3.25 x 1.50= 4.875 -> 4.9m^3
what area of chemistry are marine chemist
Answer:
As a marine chemist, you study the chemical properties of different bodies of water with the goal of making them safer and cleaner. For this to happen, you determine the potential effects of foreign chemicals, as well as the impact of aquatic transportation and construction, on rivers, lakes, and oceans.
Explanation:
2) 2,047m2 + 42m = ?
Answer: It's 2,089m2
Explanation:
A new material formed in a chemical reaction is called a?
atom
element
product
reactant
Round to 3 significant figures.
21.4501
Answer:
it is twenty-one point four five zero one or 2.14501 × 101.
Explanation:
your welcome
ANALYZE A ball of clay is manipulated into different shapes in each of the images
below. Does the amount of mass and matter in each of the images below change as
the size and shape of the clay ball is changed? Explain your reasoning.
Answer:
The amount of mass and matter in all the transformations of the clay ball will remain the same or constant
Explanation:
From the law of conservation of mass we have, for an enclosed system to and from which there is no transfer of matter or energy, mass cannot be created nor destroyed, and remains constant at the given value, but the matter which make up the mass can be changed into different forms
Therefore, the clay ball can be transformed into different shapes and will still posses the same initial mass before the transformation, provided there are no transfer of matter or energy from the clay ball system.
please help me with this multiple choicee!!!
Answer:
Answer : it's 8.8kg
Explanation:
that's what's it should be.
Why hydrocarbons are regarded as parent organic compounds?
Answer:
hydrocarbons always consist hydrogen and carbon and the simplest organic compounds are also made up of hydrogen and carbon
Some one plz help me out ASAP!
Answer:
can you help me with my science
