Answer:
strong acid and weak base
Explanation:
#carryonlearning
In the given question dissociated solution describes the property of the strong base.
What are bases?Bases are substances which gives hydroxide ion into the solution.
Dissociation reaction of caustic soda will be represented as:
KOH → K⁺ + OH⁻
From the above dissociation we conclude that potassium hydroxide is fully dissociates into their ions means it is a strong base and will make the solution caustic.
Weak acid & strong acid is wrong because acids gives H⁺ ion not OH⁻.Weak base is also wrong as weak bases show partial dissociation only.Hence potassium hydroxide is a strong base.
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When copper sulphate is dissolved in water in a beaker, a bright blue liquid or solution is formed. If copper sulphate is added until no more will dissolve, a saturated solution is formed. Some blue crystals will remain at the bottom of the beaker?
Please answers quick
Answer:
ok i dont get your question fully but i'll answer
When copper sulfate is dissolved in water in a beaker, a bright blue liquid or solution is formed. If copper sulfate is added until no more will dissolve, a saturated solution is formed. And some blue crystals will remain at the bottom of the beaker due to crystallization reaction. It is the process by which a solid form, where the atoms or molecules are highly organized into a structure known as a crystal.
Guys please help me ill give brainily points
When an apple is cut open and left out on a table in your kitchen it turns brown over
time when oxygen reacts with the apple. Describe what happens to oxygen atoms in
order to make O2 instead of 0 +2 i
Answer:
Alright, We all know fruits contains enzyme, so there is a reaction name enzymic browning! Actually what happens when we cut the apple and keep it open the organic enzyme molecules starts reacting with oxygen of surroundings and oxidises it!
Which types of chemical reactions are
considered opposites of one another?
Answer:
Hi
Explanation:
Decomposition reactions are really the opposite of combination reactions. In decomposition reactions, a single compound breaks down into two or more simpler substances (elements and/or compounds).
Explanation:
Decomposition chemical reactions
Decomposition reactions are really the opposite of combination reactions. In decomposition reactions, a single compound breaks down into two or more simpler substances (elements and/or compounds).
The decomposition of water into hydrogen and oxygen gases
and the decomposition of hydrogen peroxide t form oxygen gas and water
are examples of decomposition reactions.
PLEASE HELP FAST! NO LINKS
50 POINTS
Answer:
a
Explanation:
i am wrong haha
Answer:
are u out of time ?
Explanation:
hello BEANS would you like to play a game knok knok
Answer:
Maybe later, not right now. Tell you when.
hot cheetos hot cheetossss
Certain race cars use methanol (CH 3 OH) as fuel. The combustion of 9.8 moles of methanol produces what mass of water?
The combustion of 9.8 moles of methanol will produce 352.8 grams of water.
Stoichiometric calculationFirst, let us look at the balanced equation of combustion of methanol:
[tex]2CH_3OH(l)+3O_2(g)-- > 2CO_2(g)+4H_2O(l)[/tex]
The ratio of number of moles of methanol burned and that of water produced is 1:2.
Thus, 9.8 moles of methanol will produce 19.6 moles of water.
Mass of 19.6 moles water = 19.6 x 18 = 352.8 grams
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cells in animals and plants use the ___ that plants put in the air
Answer:
oxygen
Explanation:
plants and animals use oxygen
What is the gravitational potential energy of a box that is 2.9 m off the ground and a mass of 12.5 kg? * 20 points
Answer:
362,5J
Explanation:
formula for calculating Gravitational Potential Energy is mass×gravitational field strength ×height
12.5×10×2.9=362,5J
28. A runner completes a 10 km run in about 30 minutes. What was the runner's average
speed in km/h? Hint: (60 minutes = 1 hr)
a. 10 km/hr
c. 20 km/hr
b. 15 km/hr
d. 30 km/hr
Answer:
20 km/h
Explanation:
Speed = distance ÷ time
Speed = 10 ÷ 0.5 hours
Speed = 20 km/hr
A chemist wants to make a gas-liquid solution. However, the gas will not dissolve readily into the liquid solvent. Which step would MOST likely increase the solubility of the gas in the liquid solvent?
A) Expand the volume of the liquid.
B) Increase the temperature of the gas and liquid.
C) Lower the pressure of the gas above the liquid.
D) Increase the pressure of the gas above the liquid.
Answer:
B
Explanation:
Can't really explain it sorry buy heating the solvent tends to increase the solubility
The step that would increase the solubility of the gas in the liquid solvent is to increase the temperature of the gas and liquid.
What is solubility?Solubility is the mixing of any substance into another substance and the fully mixing of the ions of the substance to another substance's ions.
Solubility depends upon temperature, increasing temperature increase the solubility.
In the mixing of gas and liquid, the liquid is solvent and gas is solute, always.
Thus, the correct option is B.
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A shell container is useful for
What do you divide the mass by to get the concentration of a solute?
You divide by the mass of the solution.
Percent by mass is the mass of the solute divided by the mass of the solution, multiplied by 100.
Example:
You dissolve a 4.00 g sugar cube in 350 mL of tea at 80 °C. The density of water at 80 °C is 0.975 g/mL. What is the percent by mass of sugar in the solution?
Solution
Step 1 — Determine mass of the solute.
The solute is the sugar cube. Mass of solute = 4.00 g.
Step 2 — Determine mass of solvent.
The solvent is the 80 °C water. Use the density of the water to find the mass.
mass of solvent = 350 mL ×
0.975
g
1
mL
= 341 g
Step 3— Determine the total mass of the solution
mass of solution = mass of solute + mass of solvent = 4.00 g + 341 g = 345 g
Step 4 — Determine percent composition by mass of the sugar solution.
% by mass =
mass of solute
mass of solution
× 100 % =
4.00
g
345
g
× 100 % = 1.159 %
The percent composition by mass of the sugar solution is 1.159 %.
____ O3 --> ____ O + ____ O2
Answer:
1O3 --> 1O + 1O2
Explanation:
Put 1 in every blank
The kidneys help the body preserve water. When an animal has not had enough to drink, the kidneys signal the body to absorb water. The animal produces little urine, so it loses less water. During this process, the kidneys work in conjunction with which body system?
Answer:
This regulatory mechanism is in conjunction with the endocrine system, particularly in the posterior pituitary gland. This is related in the secretion of vasopressin or antidiuretic hormone (ADH). In the event of dehydration or extreme thirst, the body will conserve as much fluid as possible and the posterior pituitary will secrete more ADH that will signal the kidney to reabsorb more water in the collecting tubules.
Which planet could support human life
Answer:
D
Explanation:
It states that D has oxygen, and is closer to the Sun.
Hope this helped, and please mark as Brianliest <3
Answer:
I am pretty sure it is B
Explanation:
The others would either burn u like a crispy chicken nugget or freeze you like a popsicle
3Al + 3 NH4ClO4 ---> Al2O3 + AlCl3 + 3 NO + 6H20
How many liters of nitrogen monoxide (NO) are formed by completely reacting 50.0 grams of ammonium perchlorate (NH4C104)?
Answer:
9.63 L of NO
Explanation:
We'll begin by calculating the number of mole in 50.0 g of NH₄ClO₄. This can be obtained as follow:
Mass of NH₄ClO₄ = 50 g
Molar mass of NH₄ClO₄ = 14 + (4×1) + 35.5 + (16×4)
= 14 + 4 + 35.5 + 64
= 117.5 g/mol
Mole of NH₄ClO₄ =?
Mole = mass /molar mass
Mole of NH₄ClO₄ = 50/117.5
Mole of NH₄ClO₄ = 0.43 mole
Next, we shall determine the number of mole of NO produced by the reaction of 50 g (i.e 0.43 mole) of NH₄ClO₄. This can be obtained as follow:
3Al + 3NH₄ClO₄ –> Al₂O₃ + AlCl₃ + 3NO + 6H₂O
From the balanced equation above,
3 moles of NH₄ClO₄ reacted to produce 3 moles of NO.
Therefore, 0.43 mole of NH₄ClO₄ will also react to produce 0.43 mole of NO.
Finally, we shall determine the volume occupied by 0.43 mole of NO. This can be obtained as follow:
1 mole of NO = 22.4 L
Therefore,
0.43 mole of NO = 0.43 × 22.4
0.43 mole of NO = 9.63 L
Thus, 9.63 L of NO were obtained from the reaction.
does anyone wanna help me with my question for chemistry [i'll comment the question to you lol someone keeps sending links into my questions]
Answer:
same I was looking for a question like this I was asking question and someone kept commenting this bitly thing i dont kno I though it was just weird and frustrating lol
Nitrogen is used to keep food frozen during transportation.
Which properties make it suitable for this?
Answer:
Gaseous nitrogen has unique chemical and physical properties that make it suitable for use in food processing. Nitrogen is inert which means it will not react with prepared food materials, which can alter their aromas or flavors. Also, gaseous nitrogen will effectively displace oxygen minimizing oxidation and the growth of microorganisms that cause foods to lose their freshness and deteriorate faster.
Explanation:
Source: https://www.generon.com/using-nitrogen-gas-in-food-packaging/
"Because it deflects oxygen, nitrogen is just a common gas for food packing." Because oxygen will carry moisture, this is critical. Bacteria use oxygen to grow and survive on organic matter. Bacteria find it much harder to develop while as much oxygen as possible is removed.
What is food packing?Food packaging is the process of packaging food. A package provides security, resistance to manipulation, and particular physical, chemical, and even biological requirements. Food packaging may include a nutrition label and other information about the product being sold.
What is bacteria?Bacteria are commonly found, mostly free-living organisms with one biological cell. They belong to the prokaryotic organisms category. Bacteria, which have been typically a few micrometers long, were one of the first living species to originate on Earth and may be found in practically every ecosystem.
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Please help I'm so confused!! Turn the following Aufbau Diagrams into Ions
Which of Graphs 1 correctly represents the relationship between the pressure and volume of a gas?
Answer:
D
Explanation:
pressure is inversely proportional to gas volume
how many moles is 62 G of oxygen gas
Answer:
There are 2 moles of oxygen molecules; there are 4 moles of oxygen atoms.
Explanation:
From which celestial body is a star born?
A. supernova
B. nebula
C. protostar
D. black dwarf
Answer: B. nebula
Explanation:
Answer:
B. nebula
Explanation:
Birth takes place inside hydrogen-based dust clouds called nebulae.
-TheUnknownScientist
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____ N2 + ___ H2 --> ____ NH3
Reaction :
N2 +H2 →2 NH3
"Reactants Products Nitrogen 2 2 Hydrogen 2 6 Since NH3 is multiplied by a coefficient of 2 there are now 2 nitrogens and 6 hydrogens. The 6 hydrogens come from the 2 multiplied by the subscript of 3."
The density of ethanol is 0.789 g/mL. What is the mass of 150 ml. of this alcohol?
Answer: 120 g
Explanation:
The mass in grams of 2.6 x 10^22 chlorine atoms is
a.4.4
b.0.76
c.1.5
d.11
Which is a characteristic of a physical change?
a
The chemical bonds in the substance are unchanged.
b
The change cannot be seen.
c
The molecules all move at the same speed.
d
The substance has reacted with another substance.
Which ion dissociates in Acids?
A- ООН-
B- ОН+
C- ОН+
D- COOH
Hello Friends Can Yall Plz Help Me For Brainliest Don’t Comments No B.S Yu Will Get Cursed out show ya work
Answer:
it is b
Explanation:
mid ocean ridge diverges meaning it moving in two different direction horizontally - left to right
What volume of 2.0 M hydrochloric acid solution will be consumed when it reacts with 5 grams of magnesium to form magnesium chloride and hydrogen gas?
2HCl + Mg -> MgCl2 + H2
Answer:
Explanation:
Remember, matter can neither be created nor destroyed, so every atom of reactant the leftt side of the equation must be accounted for in the products on the right side of the equation. With magnesium and hydrochloric acid we have: Mg + 2HCl → MgCl2 + H2(g). Magnesium is divalent, and so requires two chloride ions to form magnesium chloride. Hydrogen gas is a diatomic molecule, so the reaction requires the product to be H2. Going across the equation from left to right we have 1 atom of magnesium (accounted for on the right side of the equation), and on the left, 2 moles of hydrochloric acid; the two hydrogens represented on the left of the equation are accounted for on the right of the equation. Likewise, the two chloride anions on the left of the equation are accounted for in the formation of MgCl2 on the right. When all the atoms are accounted for on both sides of the equation, we say the equation is "balanced".