Which is an acceleration?
A. Flying at 200 miles/hr
B. Speed changing from 2 km/hr to 5 km/hr
C. Moving north at 40 km/hr
D. Moving 8 meters in 2 seconds
The photograph shows one of the boats in a science club's toy boat race. All the boats were powered by identical
rubber bands. Judges used stopwatches to time how long each rubber band took to unwind. The table shows some
of the data the judges collected.
Which boat experienced the greatest unbalanced force?
Answer:Boat P
Explanation:
Multiple all of them mass times acceleration and which ever one was the greatest was the answer. Which was Boat P 0.2436
Which of the following statements describes a concentrated solution?
a) contains more solvent
b) contains more solute per volume
c) contains a solute only
d) appears to contain two layers
What is the Sl unit for energy? Be sure to give the full name for the unit
Answer:
Joules
Explanation:
I’ll give brainliest, pls help with this mole concept. Due in 2hours
Answer:
20 g of copper (II) oxide, CuO
Explanation:
The balanced equation for the reaction is given below:
CuO + 2HCl —> CuCl₂ + H₂O
From the balanced equation above,
1 mole of CuO reacted to produce 1 mole of CuCl₂.
Next, we shall determine the number of mole of CuO needed to produce 0.25 mole of CuCl₂. This can be obtained as follow:
From the balanced equation above,
1 mole of CuO reacted to produce 1 mole of CuCl₂.
Therefore, 0.25 mole of CuO will also react to produce 0.25 mole of CuCl₂.
Finally, we shall determine the mass of 0.25 mole of CuO. This can be obtained as follow:
Mole of CuO = 0.25 mole
Molar mass of CuO = 64 + 16
= 80 g/mol
Mass of CuO =?
Mole = mass /Molar mass
0.25 = mass of CuO /80
Cross multiply
Mass of CuO = 0.25 × 80
Mass of CuO = 20 g
Therefore, 20 g of copper (II) oxide, CuO is needed for the reaction.
Questions and answer options are on ( Picture )
remember pick 2 answers it says
help :(
ZOOM IN if needed
Answer:
The answer is A
Explanation:
I dont see any claim
WILL GIVE BRAINLIEST
Select all the correct answers.
Which of these are examples of mixing and separating?
removing seed casings from grains
a soda bottle bubbling when it is opened
a bright copper statue turning green from weathering
removing salt from seawater
water decomposing to oxygen and hydrogen
Answer:
Removing seed casings: separatingSoda bottle bubbling when opened: mixing as before it was opened nothing was happening but as it came in contact with atmosphere it started to bubble.
Bright copper statue turning green from weathering: mixing as all vapors and gases in atmosphere combined with copper of that statue they started to change color of statue
Removing salt from seawater: obviously removing as one component Water decomposing: obviously separating as it's constituent elements are removed from compound and converted into individual elements
WILL MARK BRAINLIEST!!!
*please answer correctly*
Answer:
Your answer is 344,758.168519
Explanation:
SOMEONE PLS HELP ASAP!!
Which pair of objects will have the least gravitational attraction to each other?
Group of answer choices
Two marbles 12 centimeters apart.
A cinderblock and marble 6 centimeters apart.
A cinderblock and marble 12 centimeters apart.
Two cinder blocks 6 centimeters apart.
Answer:
Two cinder blocks 6 centimeters apart
Explanation:
im not 100% certain but the 2 cinder blocks are more dense than the other options
sry if its wrong
Why is much of the ocean floor so difficult to see?
Answer:
because ocean currents deposit sediment on the ocean floor.
(20 points)
Dracens based on the headlines in the newspapers or electronic
mens watched news on television or listened radio nas program about
uwelated comes in the Philippines, write down/create 10 headlines about
drugs
Answer:
Scammer
Explanation:
¯\_(๑´ω｀๑)_/¯
Scammer
Newton's first law is demonstrated in what station?
Answer:
hope this helps!
Explanation:
This law states that a still object will stay still unless a force pushes or pulls it. A moving object will stay moving unless a force pushes or pulls it. Gravity and friction are forces that constantly push and pull the "stuff" on earth. So, when we roll a ball, it slowly comes to a stop.
A student has a mixture of salt and iron filings.
Which property can the student use to separate the different parts of the mixture?
Answer:
aksksks
Explanation:ss
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zxrkkrkrkkrkkrrkr
Give an example of elastic potential energy
Answer:
An archer's stretched bow.
Explanation:
Elastic potential energy is energy stored as a result of applying a force to deform an elastic object.
Is N2F5 ionic or covalent
Answer:
it's a covalent compound
Explanation:
Two non metals are bonded to together
what is the answer PLEASE HELP!!
Answer:
the water displaced will not help the student find the correct volume because you can not accurately calculate it. you have to get the water when it is settled then you place the wood in.
Explanation:
pls help because im not smart.-.
Answer:
Im not smart either but im pretty sure its D because its a pie chart so its asking how many and pie charts tell you how much something has
Explanation:
18. What is the molarity of a bleach solution containing 9.5 g of NaOCL per liter of bleach
Answer:
0,1276 M
Explanation:
Molair mass of NaOCl = 74,44 g/mol
You have 9,5 g/L.
You need to calculate with the molair mass, how many moles 9,5 g are:
9,5 g / 74,44 g/mol = 0,1276 mol
0,1276 mol / 1 L = 0,1276 M
The molarity of a bleach solution containing 9.5 g of NaOCL per liter of bleach is mathematically given as
M= 0.1276 M
What is the molarity of a bleach solution containing 9.5 g of NaOCL per liter of bleach?Generally, the equation for the Molar mass is mathematically given as
M=m/(g/mol)
Therefore
M=9,5 g / 74,44 g/mol
M= 0,1276 mol
Hence
M= 0.1276 M
In conclusion, the molarity
M= 0.1276 M
Read more about Molarity
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Which organelle of a prokaryotic cell contains genetic information?
cell membrane
ribosomes
nucleus
nucleoid
Answer:
The right option is the 4 one. nucleoid
Prokaryotic cells are simple cells that lack a definite nucleus and some membrane-bound organelles. Prokaryotic cells have a nucleoid region, which is an irregularly-shaped central region of the cell that contains the cell’s genetic information (DNA). Other organelles that can be found in prokaryotic cells include plasma membrane, cell wall, cytoplasm, and ribosomes.
Explanation:
Answer:
nucleoid
Explanation:
What happens if you mix Hydrochloric Acid (HCl) and Sodium Bicarbonate (NaHCO3 ) together?
Answer:
plz mark as brainliest
Explanation:
A saturated solution of sodium bicarbonate is reacted with hydrochloric acid to form carbon dioxide gas.
Answer:
Table salt forms as well as water and carbon dioxide
Explanation:
NaHCO3 (aq) + HCl (aq) --> NaCl (aq) + CO2 (g) + H2O (l)
can sum1 help me ????
Answer:
The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top. Based on this, layer C is oldest, followed by B and A. hope that helps
Explanation:
A=top
B=middle
C=bottom
In which of these do you need to know the direction in which the object is moving?
velocity
instantaneous speed
average speed
mass
Answer:
velocity
Explanation:
please help me with this question/
Answer:
4 of each protons and electrons
Explanation:
since the atomic number is 4 it would contain both the same number of protons and electrons
is A bond a chemical attraction between two atoms?
Answer:
Yes, a chemical bond is a lasting attraction between two atoms. (I am not completely sure what you mean, but I hope this helps!)
As a species evolve, they develop ________ and ________ others
3 points
old traits, save
new traits, save
old traits, lose
new traits, lose
Answer:
d
Explanation:
Consider the reaction and the rate law below.
2O3 → 302
R= k[03]2
What is the overall order of the reactants in this rate law?
A. 0
B. 1
C. 2
D. 3
The overall order of the reactants in this rate law : 2
Further explanationGiven
Reaction
2O3 → 302
The rate law :
R= k[03]²
Required
The overall order
Solution
The overall order : the sum of orders for each reactant
For A + B ---> C + D
r = k [A]ᵃ[B]ᵇ
The overall reaction order is m+n
So for the rate law of R= k[03]², the overall order = 2
explain isotope with hydrgen diagram
Answer:
Hydrogen has three naturally occurringisotopes: 1H (protium), 2H (deuterium), and 3H (tritium). Other highly unstable nuclei (4H to 7H) have been synthesized in the laboratory, but do not occur in nature. The most stable radioisotope ofhydrogen is tritium, with a half-life of 12.32 years.
Although I2 is the stable form of iodine at low temperatures, at high temperatures the molecule can dissociate:
Upper I subscript 2 (g) double-headed arrow 2 upper I (g).
What is the equilibrium constant expression for this system?
K subscript e q equals StartFraction StartBracket upper I EndBracket superscript 2 over StartBracket upper I subscript 2 EndBracket EndFraction.
K subscript e q equals StartFraction StartBracket upper I EndBracket over StartBracket upper I subscript 2 EndBracket EndFraction.
K subscript e q equals StartFraction StartBracket upper I subscript 2 EndBracket over StartBracket upper I EndBracket superscript 2.
Answer:
1. A
2. B
3. Left/Reactants
Explanation:
UWU
Answer:
Question 1 : A
Question 2: B
Question 3: In this system, the equilibrium lies to the ✔ left,and the reaction favors the reactants.
Explanation:
Hope this helps.
Edge 2022
The pH of a solution is 8.7
What is the pOH?
Answer:
pOH = -log[OH – ]
pH + pOH = 14
Explanation:
I did not understand the question but hope this help!
The pH of a solution is 8.7 and pOH is 5.3
What is sum of pH and pOH?The sum of pH and pOH is 14.
pH + pOH = 14
If pH of a solution is 8.7 then pOH is calculated as,
8.7 + pOH = 14
pOH = 14 - 8.7
pOH = 5.3
To learn more about pH here.
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How many streams form?
Answer:
DE Q SECUENCIAS DE Q
Explanation: