Answer:
The amount of heat energy that was released by the reaction is 10,460 J.
Explanation:
Sensible heat is that which a body or an object receives or releases and causes its temperature to increase or decrease without affecting its molecular structure and therefore its state.
In other words, sensible heat is the amount of heat that a body absorbs or releases without any changes in its physical state (phase change). When a body is supplied or absorbed sensible heat, the temperature varies.
The equation that allows calculating heat exchanges is:
Q = c * m * ΔT
where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.
In this case:
c= 4.184 [tex]\frac{J}{g*C}[/tex]m= 100 gΔT= Tfinal - Tinitial= 50 C - 25 C= 25 CReplacing:
Q= 4.184 [tex]\frac{J}{g*C}[/tex] *100 g* 25 C
Solving:
Q=10,460 J
The amount of heat energy that was released by the reaction is 10,460 J.
NaCl is 0.85% m/v calculate molarity
Answer:
For example, 0.9% NaCl contains 0.9 g NaCl per 100 ml of solution or 9 g NaCl/l. This can be converted to molarity by dividing by molecular weight: 0.9% NaCl = (9g/l)/(58.5g/mole) = 0.15 M NaCl.
What is physical weathering NOT caused by? (pls i really need help with this!!)
Answer:
the changing tempure in rocks causing it to back apart
about how many days does it take to go from one moon phase to another
Answer:
After one month, the Moon returns to the same location in the sky as the Sun and we see a New Moon again. The demo represents a month as 28 days for simplicity. But the real cycle of phases takes 29.5 days to complete.
what is the name of the world's first scientist?
Answer:
Aristotle is considered by many to be the first scientist, although the term postdates him by more than two millennia. In Greece in the fourth century BC, he pioneered the techniques of logic, observation, inquiry and demonstration.
Explanation:
hope this help:))
how many total atoms of each element are presented in the following formula
Answer:
Aluminium (Al): (3*2)+(5*2)=16
Sulphor (S): (3*1)=3
Oxygen (O): (4*3)+(3*1)=15
PLEASE HURRY!!!! The diagram shows 2 identical charged particle. How does the potential energy and the force of repulsion changes as the charges are brought closer together
Answer:
Please did you ever get an answer??
Explanation:
Im doing usa test prep too and its really late
How many atoms of carbon are in 6.00 g of carbon?
Answer:
12 atoms
C-12.thats all
How do electric charges occur?
Answer:
In an atom of matter, an electrical charge occurs whenever the number of protons in the nucleus differs from the number of electrons surrounding that nucleus. If there are more electrons than protons, the atom has a negative charge. If there are fewer electrons than protons, the atom has a positive charge.
Explanation:
What is an Isochron map
Answer:
An isochrone map in geography and urban planning is a map that depicts the area accessible from a point within a certain time threshold. An isochrone is defined as "a line drawn on a map connecting points at which something occurs or arrives at the same time".
Explanation:
Answer:
An isochrone (iso = equal, chrone = time) is defined as "a line drawn on a map connecting points at which something occurs or arrives at the same time". In hydrology and transportation planning isochrone maps are commonly used to depict areas of equal travel time.
Explanation:
BRAINLIEST plz
What is the correct name for TiF3
Answer:
Titanium fluoride
Explanation:
How to convert 1348celsius to kelvin in stoichiometry reaction of a gas. The gas turned white not green.
Answer:
1621 K
Explanation:
How to convert 1348 celsius to kelvin
Celsius and Kelvin are both units for temperature. The relationship between both units is given as;
Kelvin (K) = Celsius ( °C ) + 273
Inserting the values from the question;
Kelvin (K) = 1348 + 273 = 1621 K
How do you calculate neutrons of an element???
Answer:
The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus. The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z). Hope This Helps
Explanation:
what is a rule for determining the mass number of an atom or ion
Answer:
The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
sorry if im wrong
Explanation:
Help why isn’t
No one helping
Answer:
the second one
Explanation:
speed = Distance divided by time
10. Find the mass of 0.061 mol of H2O2.
11. Find the mass of 0.30 mol of Ne.
Answer:
10. 2.0748gm
11. 6.05391gm
Explanation:
(this is due tonight)
Give a real life example of something that is measured in velocity units.
Answer:
Velocity of a satellite around the earth.
Velocity of a car while driving.
Explanation:
Calculate the molarity of a MgSO4, solution
prepared by adding 0.32 moles of MgSO4, to
enough water to make 5.5 L of solution,
Answer in units of M.
Answer:
0.058M is molarity of the solution
Explanation:
Molarity is defined as the ratio between the moles of solute (In this case, MgSO₄) and the liters of solution.
In the problem:
Moles MgSO₄: 0.32 moles
Liters solution: 5.5L
Molarity is:
0.32 moles / 5.5L =
0.058M is molarity of the solution
someone please help me with this????
Answer:
D po ayan po ang sagot ko salamat po
please I'm not really sure.
Answer:
a pea!
Explanation:
Answer:
A pea
Explanation:
We already know a electron is smaller than a proton.
The pieces of the Earth's crust or lithosphere that fit together like jigsaw puzzle pieces are called:
Question 1 options:
subduction plates
continental plates
mountain plates
tectonic plates
Answer:
Tectonic Plates
Explanation:
SANA MAKATULONG TO
AND GOD BLESS
Tectonic plates are pieces of the Earth's crust or lithosphere that fit together like jigsaw puzzle pieces.
What is Lithosphere?This is defined as the rocky outer part of the Earth. It consists of tectonic plates in the form of different pieces.
They also fit together like jigsaw puzzle pieces which was why option D was chosen as the most appropriate choice.
Read more about Tectonic plates here https://brainly.com/question/1162125
brainiest plsss helpp
Answer:
b 13kg/m³ is the answer to this question
Answer:
A) 19320 kg/m^3
Explanation:
hope this helps and please give me brainiest if i get it correct or if you want? i would be happy if you did :D
Which two processes turn layers of loose sediment into hard sedimentary rock? (ASAP)
Answer:
compaction and cementation
Explanation:
Answer:
compaction and cementation
Explanation:
For each problem, define whether you are calculating for a scalar or vector quantity. Show your work to receive full credit.
A ball travels 300 m in 2,000 secs going east. What is the velocity of the ball?
Answer:
I dont get what you need help with
Explanation:
Answer:
i dont get what your supposed to do either
What would be the right answer?
Answer:
5 is the answer since they are asking for pair. And 3 pairs in the triple bond
Answer:hydrogen=1
carbon=3
total=2h+c=2×1+3=5
7. From the arteries, blood flows into tiny, narrow vessels called _________________________________________.
Answer:
Arterioles
Explanation:
Arterioles
Plz help me out with this
10 points
Answer:
you can tell diorite is an intrusive igneous rock because it has a coarse-grained texture
Which choice best describes the objects motion from 2 to 5 seconds
Answer:
c is da answer it didn't move
Which is there not a bacteria shape
Answer:
i cant help you, if you'd like you can re-post this with a photo of the bacterial shapes or explain them.
Explanation:
:)
Based on percent ionic character the bond between Al & Br would be classified as
A. ionic
B. polar
C. nonpolar
D. metallic
*************PLEASE HELPPPPPPPPP*********
Answer: I think it's A
Explanation:
Which of the following is the mass in grams of 4.25 × 10³ mol of N2?
Answer:
119,059.5 g/mol
Explanation:
First, find the mass of N2
On the periodic table, nitrogen is 14.007
Because there are two nitrogens, multiply it by 2
14.007*2 = 28.014 g
Now convert... (also don't let that exponent intimidate you! You can change it to 4250 if that makes it easier)
4.25 × 10³ mol * 28.014 g/1 mol = 119059.5 g/mol