Answer:
2CH4 + 3O2 → 2CO + 4H2O
Explanation:
When methane is burnt in adequate supply of oxygen, then carbon dioxide is produced but when methane is burnt in limited supply of oxygen, then carbon mono-oxide is produced.
The balanced equation for the same is as follows -
2CH4 + 3O2 → 2CO + 4H2O
some one please help me
Answer:
C.4
Explanation:
how to find resistance of a color code with 4 rings?
Answer:
its yellow
Explanation:
it's a constant law .... much explanation
from 0 to 9
we have
black .o
brown 1
red 2
orange 3
yellow 4
green 5
blue 6
violet 7
grey 8
white 9
What is the role of Cl2 in the following
reaction?
CL + NaOH Nacl+ NaCO3+H2O
Answer:
Cl2 acts as an oxidizing agent
Explanation:
The balanced equation is
Cl2+NaOH⟶NaCl+NaClO3+H2O
Cl2 acts as a reactant in this chemical reaction
Cl2 receives one electron and thus reduces itself from Cl2 to 2 Cl−. This indicates that 2Cl- will oxidize some other element and hence Cl2 act as an oxidizing agent.
calculate the PH of a solution 0.030 M HCl
Answer:
pH = 1.522
Explanation:
HCl + H20 -> Cl^(-) + H30^(+)
0.03M ____ ____
____ 0.03M 0.03M
[H30^(+)] = 0.03M
pH = - log([H30^(+)])
pH = - log( 0.03)
pH = 2 - log3
pH = 2- 0.47
pH = 1.522
The pH of the hydrogen chloride, HCl solution having a concentration of 0.03 M is 1.52
What is pH ?This is simply a measure of the acidity / alkalinity of a solution.
The pH measures the hydrogen ion concentration while the pOH measures the hydroxide ion concentration
How to determine the concentration of H⁺Dissociation equation
HCl(aq) —> H⁺(aq) + Cl¯(aq)
From the balanced equation above,
1 mole of HCl contains 1 mole of H⁺.
Therefore,
0.03 M HCl will also contain 0.03 M H⁺
How to determine the pH Hydrogen ion concentration [H⁺] = 0.03 MpH =?pH = –Log H⁺
pH = –Log 0.03
pH = 1.52
Learn more about pH:
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Please help me with this chem question. Only answer if you know it.
Answer:
solid=(s)
Explanation:
A solubility table may be something your class may want you to memorize. Where an aqueous (aq) solution is formed by a soluble compound dissolving in water, our solvent. So if we refer to this solubility table, it says phosphate (PO4) is usually insoluble, so in the reaction it won't break down in water and will stay as a solid (s). The only exceptions are group 1 alkali metals or ammonium (NH4+).
How much kinetic energy does a 200 Kg wrecking ball have if it is swung at 10 m/s?
A. 2000 J
B. 20 J
C. 10,000 J
D. 19,60 J
Scientist have genetically altered a common virus so that it can Destroy the most lethal type of brain tumor without harming the healthy tissue nearby this technology is used for all expect
Answer:
The correct answer is - discovering or diagnosing the disease.
Explanation:
According to the question, this technology includes genetically modifying a common virus in order to destroy or kill the deadly brain tumor without affecting normal cells around the tumor, this technique is genetic engineering.
This technique can help in treating or curing the disease by killing the tumor cells and make them non-lethal. It can also prevent the tumor cells to grow and make them controlled. There is nothing mention related to diagnosing the disease in the question and it is not possible to find this tumor with help of such a technique.
what is the compound name for Cu(OH)2
Answer:
Copper hydroxide is the correct answer.
Explanation:
Hope this helped Mark BRAINLIEST!!!
Which type of molecule is shown below?
• A. Alkyne
• B. Aromatic
• C. Alkene
O D. Alkane
Zn + 2HCI → ZnCl2 + Hz
3. How many moles of hydrogen, H2, will be produced if 0.95 moles of zinc, Zn, reacts
with 6.2 moles of HCI? (Hint: Must determine limiting reactant.)
Answer:
0.95 moles
Explanation:
I believe that this is the equation we are looking at since this is an acid- metal reaction, thus the products would be a salt and hydrogen gas (H₂):
Zn +2HCl → ZnCl₂ +H₂
The limiting reactant is the reactant that we do not have enough of for the reaction to continue. From the balanced equation, the mole ratio of Zn to HCl is 1: 2. This means that for every 1 mole of Zn, 2 moles of HCl is needed.
Let's calculate the number of moles of HCl needed to react with 0.95 moles of Zn.
Number of moles of HCl required
= 0.95 ×2
= 1.9 moles
Since we have 6.2 moles of HCl, HCl is in excess and thus Zn is the limiting reactant. For 6.2 moles of HCl, 3.1 moles of Zn would be needed but we only have 0.95 moles.
For every 1 mole of Zn, 1 mole of H₂ is produced.
Thus, since 0.95 moles of Zn has reacted,
number of moles of H₂ produced= 0.95 moles
Name the following alkane molecule (picture)
A.) 2-methyl-3-broom-5-ethyloctane
B.) 3-bromo-5-ethyl-2-methyloctane
C.) 3-bromo-5-ethyl-2,7-dimethylheptane
Answer: B. 3-bromo-5-ethyl-2-methyloctane
Explanation:
The correct name of the compound as we can see is 3-bromo-5-ethyl-2-methyloctane.
What is IUPAC nomenclature?The IUPAC nomeclature shows the standard,, approved pattern for naming organic compounds. As a matter of fact it is intended to enable pratitioners to write the name of a compound from structure.
The correct name of the compound as we can see is 3-bromo-5-ethyl-2-methyloctane.
Learn more about IUPAC nomeclature: https://brainly.com/question/14356798
Use the masses of the elements below to calculate the mass of 8.70 moles of H3M (the number at the bottom of
each square is the atomic mass of that element)
1
2
3
4
5
6
A
H
C
B
M
Sm
aragon
hillsdale
capuchino
mills
burlingame
san mateo
1.10
3.50
7.09
11.22
15.23
18.98
Given:
Wanted
Relationship: 1 mole H3M =
grams
Final answer
grams
yes use the masses of an element below calculate the mass of it 8.70 mole of each 3M
how many moles of aluminum are produced from 4.9 moles of lithium?
Answer:
2.95078 × 10^23
hope this helps you ☺️☺️
Need this less than 4 minutes!! In which step do we see the chromosomes condense and meet up to form homologous pair?
Metaphase II Metaphase I Anaphase II Prophase I Prophase II
Answer:
Prophase I
Sorry if wrong I was rushing !!
Unsaturated, saturated, or supersaturated?
Answer:
supersaturated
Explanation:
If the reaction was reversed and we wanted to produce as much NaN3, in grams, as possible from 30.0 g of N2 and 20.0 g of Na, which reactant would be the limiting reactant? (4 points) How much NaN3 would actually be produced?
Answer:
N₂
Explanation:
Sodium is a larger molecule with a much higher molecular weight. However, 20g of N₂ would be a smaller amount of molecules than 20g of sodium due to how there are multiple nitrogen molecules.
2/3 * given mass of N₂ = mass of N₃
N₃ (Azide ion) given mass = 20g
Na = 20g
Masses of chemicals are equal
Na = 22.990g/mol
20g/22.990g/mol = 0.8699mol of Na
N₃ = 20g
N₃ = N g/mol x 3
N = 14.007 g/mol
14.007 x 3 = 42.021 g/mol
N₃ = 42.021g/mol
20g/42.021g/mol = 0.4759 mol of N₃
Notice how there are fewer moles of the Azide ion than the Sodium.
0.4759 moles of NaN₃ is produced
combine molecular weights:
42.021 + 22.990 = 65.011 g/mol
multiply by amount of moles of the limiting reactant:
0.4759 mol *65.011 = 30.942 g
Also, here is the balanced equation:
3N₂ + 2Na = 2NaN₃
The results are the same as the balanced equation.
9. Which of these things is true about the Moon?
A
The Moon is always moving around Earth in a circle.
B
The Moon is always in the same position in Earth's sky.
С
The Moon is always moving in many changing patterns around Earth.
D
The Moon is always moving back and forth across Earth's sky.
The true statement about the Moon is: A. The Moon is always moving around Earth in a circle.
What is a Moon?A Moon can be defined as the natural satellite of planet Earth that shines due to the Sun's reflected light, as it revolves around the Earth from west to east in 29½ days.
The phases of the Moon.Generally, there are four (4) primary Moon phases and these are:
New MoonFirst QuarterFull MoonThird Quarter (Last Quarter)In conclusion, the true statement about the Moon is that it is always moving around Earth in a circle.
Read more on the Earth here: brainly.com/question/1286910
What is something YOU can do Today to help preserve our Mother Earth??
Answer:
I would recycle, reuse, and reduce the litter on this already hurt Earth.
Explanation:
Answer:
I can go out and help pick up garbage and i can recycle and not litter and i can reuse all the plastic water bottles i drink.
Explanation:
Im glad you care about mother earth to
Fe + O2 —> Fe2O3
can someone pls help me balance this??
Answer:
4Fe + 3O2 → 2Fe2O3
What is the biggest grass in the world
Answer:
bamboo is the biggest/tallest grass in the world
Answer:
Giant Bamboo
Explanation:
Giant bamboo, which can grow up to 151 feet tall, is the largest variety of grass.
Can somebody plz help answer these true or false questions correctly (only the ones you know that are right)
Thanks :3
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST..promise! :DDDD
Explanation:
1.False
2.False
3.True
4.True
5.False
what 3 things does cell division allow cells to do?
(there r no answer choices)
Answer:
Cell division is central to organism growth, reproduction and tissue repair.
Explanation:
Hope this helps!
Answer:
multiply, survive grow
What is the molar mass of CH 4 ? (C = 12.01g / m * o * l, H = 1.008g / m * o * l)
The shells further away from the nucleus are larger/smaller and can hold more/less electrons.
Which one is the right one? Larger/smaller? More/less?
If a chemist dilutes 2L of 0.700M solution to 3 L what will be the new concentration (M)?
Answer:
0.233M
Explanation:
M1 = 0.700M
V1 = 2L
V2 = 3L
M2 = ?
M1V1 = M2V2
(0.700)(2) = M2(3)
M2 = 0.233M
What’s an easy way to learn to convert metric numbers? Help plz
Explanation:
HOPE IT HELPS
THANKS
At the same temperature and pressure, 15L of CO2 gas has the same amount of molecules as what volume of N2 gas?
Answer: 15 L of [tex]N_2[/tex] gas will have same numer of molecules as 15L of [tex]CO_2[/tex] gas at the same temperature and pressure,
Explanation:
According to avogadro's law, equal moles of gases occupy equal volume at same conditions of temperature and pressure.
[tex]\text{Number of moles}=\frac{\text{Given volume}}{\text{Molar volume}}[/tex]
[tex]\text{Number of moles of} CO_2=\frac{15L}{22.4L/mol}=0.67mol[/tex]
[tex]1 mole of CO_2[/tex] contains=[tex]6.022\times 10^{23}[/tex] molecules of [tex]CO_2[/tex]
Thus 0.67 moles of [tex]CO_2[/tex] contains=[tex]\frac{6.022\times 10^{23}}{1}\times 0.67=4.03\times 10^{23}[/tex] molecules
Now molecules of [tex]N_2[/tex] = molecules of [tex]CO_2[/tex] = [tex]4.03\times 10^{23}[/tex]
[tex]6.023\times 10^{23}[/tex] molecules of [tex]N_2[/tex] = 22.4 L
Now [tex]4.03\times 10^{23}[/tex] molecules of [tex]N_2[/tex] = [tex]\frac{22.4}{6.023\times 10^{23}}\times 4.03\times 10^{23}=15L[/tex]
what would happen if a roof was made from wool?
A. it would not be transparent anymore.
B. it would not be waterproof anymore.
C. it would be soft and transparent.
D. it would be hard and water resistant .
Answer:
B
Explanation:
it will not be waterproof anymore
What other small steps can we take to save water ?
Answer:
Check your toilet for leaks. ...
Stop using your toilet as an ashtray or wastebasket. ...
Put a plastic bottle in your toilet tank. ...
Take shorter showers. ...
Install water-saving shower heads or flow restrictors. ...
Take baths. ...
Turn off the water while brushing your teeth. ...
Turn off the water while shaving.
Explanation:
Answer:
keeping the water clean
Explanation:
avoid dumping rubish in the water
Thank you!!! ;0;
3.00 moles of ammonia are originally put into a 1.00-liter container and allowed to decompose (no other chemicals present). At equilibrium, 0.600 moles of ammonia remained in the reaction vessel. What would be the equilibrium constant (K) for this reaction?
2 NH3(g) N2(g) + 3 H2(g(
Answer:
Kc ≅ 100 (1 sig. fig.)
Explanation:
2NH₃(g) ⇄ N₂(g) + 3H₂(g)
C(i) 3.00 mol/L 0 0
ΔC -2x +x +3x
C(eq) 0.600 mol/L x 3x
3.00 - 2x = 0.600 => x = 3.00 - 0.600/2 = 1.2 mole/L
At equilibrium Kc = [N₂][H₂]³/[NH₃]² = (x)(3x)³/(3·1.2)² = (1.2)(3.6)³/(0.600)² = 155.52 (calculator)
Rounds to 1 sig. fig. based on given 3.00 moles NH₃(g)' Kc ≅ 100.