Answer:
because it is
Explanation:
simple
Answer:
Explanation: none
Determine from the balanced chemical reaction if
the derived mole ratio is correct or incorrect.
2FeBr3 + 3Na2S → Fe2S3 + 6NaBr
2 moles FeBra
3 moles Na2S
Answer:
Correct
Explanation:
According to the balanced chemical reaction, 2 mol FeBr3 are consumed for every 3 mol Na2S consumed.
A balanced equation obey the law of conservation of mass. The coefficients are the numbers which are added to balance the chemical equation. Here the given mole ratio is correct.
What is a balanced equation?An equation in which the number of atoms of reactants and products on both sides of the equation are balanced is defined as the balanced chemical equation. The coefficients which are added in front of the formula of each component represents the number of the species.
A molar ratio denotes the ratio between the amounts in moles of any two compounds involved in a balanced chemical reaction. By comparing the coefficient of each component, the mole ratio can be determined.
Here for the given reaction, for every 3 moles of Na₂S consumption 2 moles of FeBr₃ is also consumed. So the molar ratio of Na₂S to FeBr₃ is 2/3. Molar ratios are used as the conversion factors between products and reactants in many chemistry problems.
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4. A girl walked for 30 minutes. She noticed that she traveled farther in the first 15 minutes of
her walk than in the second 15 minutes,
What can she conclude about her walk?
A she walked over many hills
B
her average speed was faster during the first part of her walk
C. she walked in two different directions
D. she was walking at a constant speed
How many grams are in 26 moles of
magnesium hydroxide?
1,516.31168 grams of Magnesium Hydroxide
Ammonia (NH3) dissolved in water is heated in a beaker. If initially there had been 60 grams dissolved in 100 grams of water, what would happen if the temperature reached 90℃ and why? A. The solution would become supersaturated and the ammonia would all remain dissolved . B. The solution would become saturated but the amount of ammonia dissolved would remain the same . C. about 50 more grams of ammonia would be able to dissolve as the solution has become unsaturated . D. about 50 grams of ammonia would come out of solution as the temperature caused the solubility to decrease .
Answer:
C. About 50 more grams ammonia would be able to dissolve as the solution has become unsaturated
Explanation:
From the question, we have;
The mass of ammonia dissolved in water = 60 grams
The mass of the water solvent which dissolves the ammonia = 100 g
The temperature to which the ammonia water solution is raised = 90°C
Therefore, given that the solubility of a solute in a solvent increases with temperature, when the temperature is raised, we have, that the solution will more unsaturated and will be able to dissolve more ammonia, therefore, option 'C' is the most correct option that corresponds with the relationship of temperature and solubility
Calcium carbonate decomposes into
calcium oxide and carbon dioxide.
The mass of calcium carbonate that
decomposes is 57 g. At the end of
the experiment, the mass of the
products were only 45 g. What can
we conclude from this information?
Answer:
The mass of carbon dioxide formed is 12g.
Will award brainliest! Between which two ionization energies would you expect to see the biggest jump for calcium? A. 11-12
B. 12-13
C. 13-14
D. 14-15
answer:lettter B that is answer
Different substances have....
A.the same properties
B. different properties
C.similar properties
D.all properties
Answer:
Different properties
Explanation:
They are different.
Can someone balance this equation
CH₄ + 2O₂ = CO₂ + 2H₂O
is it true or false?
Answer:
The rainforest is teeming with animals and insects, so you would hear humming. Frogs and birds make some of the loudest rainforest sounds.
howler monkeys, are the loudest so i think that its false cause lost of animals are there but some can be quiet
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.)
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!
HELP!!!!
please omg
Answer:
I believe it's A. to reduce air bubbles. Tbh, it's been a while

A solution has a pOH of 5.
What is the pH?
Classify the solution as acid, base, or neutral.
Answer:
pH is the number given to a substance of how powerful it is before 7 or beyond 7.
the solution is an acid.
Explanation:
Pls mark BRAINLIEST
Answer:
August 15, 1971
The nine sheikhdoms still had not agreed on terms of union by 1971, however, prompting Bahrain to declare itself fully independent on August 15, 197
1.A solution has a pH of 5, calculate the pOH, [H+], and [OH-]. Classify the solution as an acid, base, or neutral solution.
it's an acid
Explanation:
I hope that this helps
object with a mass of 30 kg is observed to accelerate at the rate of 4 m/s2. Calculate the force required
What happens to the average speed of gas molecules as the temperature increases? Why?
Answer:
Average speed increases because average kinetic energy increases.
Explanation:
Temperature is the measure of the average kinetic energy of a system. As temperature increases, so will kinetic energy. As kinetic energy increases, speed increases.
You are melting a chocolate and accidentally have the stove up to high. the chocolate starts to burn on the bottom of your pot. Physical or Chemical Change?
Answer:
it is a chemical change because it can't be change back to it normal position when it gets burnt
3. The mass percent of nitrogen in NH4Cl is *
O 16.7% nitrogen
0 25.0% nitrogen
0 26.2% nitrogen
O none of these
Answer:
None of these
Explanation:
The mass percent is 35.4% (3 s.f.)
14/4+35.5 = 14/39.5 x 100 = 35.4 (3 s.f.)
The equation A+ BX à AX + B is the general equation for a
Answer: d
Explanation:
took the test