Answer:
295000 m/ms pretty sure
Explanation:
I need help on this Shi pls ……….
Answer:
3352.487 liters FeO. I'm not sure if this is the correct answer though.
This is 20 points!!!
Answer:
I think it both physical & chemical change :')
List number of each atoms in this compound 3BaF2
Answer:
Explanation:
This problem has no specific right answer. I can give you two possibilities. If you get the first one wrong, try the second.
1 molecule of BaF2 has
1 Ba 1
2F 2
Total 3
3 molecules have 3 * 3 = 9 atoms
That's one answer
The other is the actual number of atoms in 9 units
1 unit has 6.02 * 10^23 atoms
9 units have 6.02 * 10^23 * 9 = 5.42*10^24
Since the question is unclear, you will have to choose.
Explain the following graph on the basis of Maxwell-Boltzmann distribution curve. and derive an expression for battery would be used in next 7th day and optimum life of battery.
Goodbye brainly people!! Yumi muska, Shraddha Bhakti!!
In this exercise we will use Maxwell botzamn's knowledge of distribution to explain what happens, like this:
The Maxwell-Boltzmann distribution describes the distribution of velocities between particles in a sample of gas at a given temperature.
Then we can analyze that the graph referring to the boltzman distribution will be:
The y-axis of the Maxwell-Boltzmann graph can be viewed as the number of molecules per unit of velocity. So if the graph is higher in a given region, it means there are more gas molecules moving at those speeds.There is a longer "tail" in the high velocity region at the far right of the graph. The graph continues on the right for extremely high speeds, but on the left the graph should end at zero.See more about Maxwell botzamn's at brainly.com/question/5615650
If you have 18.12 x 10 23 atoms how many moles do you have?
Answer:
The answer is
→ 3.008896419986146
Explanation:
[tex]18.12*10^2^3[/tex] → [tex]1.812e+24[/tex] [tex]atoms[/tex]
[tex]1.812e+24[/tex] [tex]atoms[/tex] → [tex]3.008896419986146[/tex] [tex]moles[/tex]
Hope this helped! If it didn't, then I'm deeply sorry.
Use the reaction equation and bond energies to answer the question
2H20 – 2H2 + O2
H-O: 467 kJ/mol
H-H: 432 kJ/mol
O=0: 495 kJ/mol
What is the total energy of the reaction? Is this an endothermic or exothermic reaction?
A 509 kJ/mol, exothermic
B -509 kJ/mol, exothermic
C 509 kJ/mol, endothermic
D -509 kJ/mol, endothermic
Answer: 509 kj/mol, endothermic
Explanation: just took the test
Answer:
509 kj/mol endothermic
i just took the test and got it right.
Explanation:
How many hydrogen atoms are present in 55.5g of H2O?
WRITE THE ELECTRONIC CONFIGURATION OF THE FOLLOWING ELEMENT
Answer:WHAT IS THE ELEMENT NAME?
1.Are gender traits completely a result of societal expectations?
2.Are there any parts of the human body that get oxygen directly from the air and not from the blood?
3.Are there nuclear reactions going on in our bodies?
Answer:
No. Gender traits in humans are largely determined by biophysical processes
Upper-layer skin cells and the cells in the front surface of the eyes get a significant amount of oxygen directly from the air rather than from the blood.
there are nuclear reactions constantly occurring in our bodies, but there are very few of them compared to the chemical reactions, and they do not affect our bodies much. Chemical reactions do not change the nuclear structure of any atoms. In contrast, nuclear reactions involve the transformation of atomic nuclei.
Explanation:
Have great day
Answer:
1- no
2- yes there are 2 parts of the body
- the cell in the front surface of the eye called the cornea
- the upper layer of skin layer
3- yes
Explanation:
Pleaaaaase hellllp asaaaap
Answer:
solve example number 2 ....
Explanation:
solve examole number 2 .....
Calculate the expression 89.3x77.0x0.07 to the correct number of significant figures
The given expression can be simplified to correct significant figures as 481.
Standard form of numbersA number can be expressed in the power of tens to reduce some ambiguity associated with representing the large number.
Calculating the numbersThe given numbers can be expressed as follows;
89.3 x 77.0 x 0.07 = 481.327
Correct significant figures≅ 481 (3 was rounded down to zero)
Thus, the given expression can be simplified to correct significant figures as 481.
Learn more about significant figures here: https://brainly.com/question/8018410
PLS HELP!! NO LINKS PLS.
When magnesium (Mg) metal is burned in the presence of oxygen (02), magnesium oxide (Mg0) is produced. Is Mg0 an element, compound, or mixture? Explain.
Answer:
When the magnesium metal burns it reacts with oxygen found in the air to form Magnesium Oxide, which is a compound. A compound is a material in which atoms of different elements are bonded to one another. Oxygen and magnesium come together in a chemical reaction to form this compound.
Does this help?
How many oxygen atoms are contained in 112.2 g of iron sulfate FeSO,7H,0?
đhh.đhh đh đh đu đu đh
Explanation:
How many oxygen atoms are contained in 112.2 g of iron sulfate FeSO,7H,0?
Use the bond energies to answer the question.
H–H = 432
H–O = 467
O–O = 146
O=O = 495
H2 (H–H) combines with O2 (O=O) to become hydrogen peroxide (H2O2) bonded as such: H–O–O–H. Which option shows the difference in total bond energy between the reactants and the products?
A. 1,0801,080
B. −927
C. −153
D. 153
Answer:
D
Explanation:
Hello!
This is a topic I just learned this year so I might not help the best as of explaining. But I will try my best.
To solve this problem, we must first figure the balanced equation.
H₂+O₂=H₂O₂
Now, we have to find the bond energy of the reactants and products. This is how.
Let's find the reactant first.
For the compound H₂, the Lewis dot structure says that it only consists of one singular bond. So the bond energy of H₂ would be 432.
For the compound O₂, the Lewis dot structure that is the best out of the resonance structures form a double bond. Let's use the bond energy 495 for this since there are double bonds and we need the corresponding double bond energy to make the bond energy accurate.
Let's add this amount together. 927
Now, we have to find the bond energy of the products.
H₂O₂ sounds complicated but it's fairly easy. When you write the Lewis dot structure for this specific compound, you will get something along the lines of this:
H-O-O-H (disregarding lone pairs)
In this compound, there are two bonds of H-O and one bond that is a O-O. This might take you a long time to see this, but just think of what atom is touching the atom next door. This might help distinguish the bonds there are between the compound.
Let's take the bond energy of H-O (467) and multiply this by two since we have two. Add that number to the bond energy of O-O (146). We should have the numbers 1080.
Since the problem is asking for the difference in total energy between the reactants and products, let's subtract the total bond energy of the products-reactants.
1080-927=153
Therefore, your final answer of the total bond energy is 153.
___B2Br6 + ___HNO3 ___B(NO3) + ___HBr
