Answer:
which produces hydrogen ion in water, called acid. A substance which produces hydroxide ion in water, called base. According to Bronsted-Lowry theory, an acid is proton donor and base is proton acceptor. Actually, Arrhenius theory is limited only to the aqueous solution.
Explanation:
Consider the reaction below.
HI + H2O → H30++
Which is an acid-conjugate base pair?
O HI and H20
O H2O and Hž0+
OH30+ and I
O HI and
Answer:
HI and I-
Explanation:
Hello there!
In this case, according to the acid ionization of hydroiodic acid:
[tex]HI+H_2O\rightarrow I^-+H_3O^+[/tex]
Now, since the acid, HI, results in the conjugate base, I- and the base, H2O in the conjugate acid, H3O+, it is correct to assert that the acid-conjugate base pair is HI and I-
Best regards!
The acid-conjugate base pair in the reaction above is HI and I-. Details about conjugate base can be found below.
What is a conjugate base?A conjugate base is the substance formed when an acid loses or donates its proton or hydrogen ion.
According to this question, the following reaction is given:
HI + H2O → H30+ + I-
The acid in this reaction is HI while the conjugate base is I-.
Learn more about conjugate base at: https://brainly.com/question/12883745
#SPJ5
PLZZ I WILL GIVE Braliest!!!
What makes a radioactive decay chain end?
A. The final element has the longest half-life.
B. All mass has been converted to energy.
C. The radiation is absorbed by something.
D. The final product is not radioactive.
SUBMIT
[tex]\huge{\mathbb{\tt {QUESTION:}}}[/tex]
What makes a radioactive decay chain end?
OA. The final element has the longest half-life.
OB. All mass has been converted to energy.
OC. The radiation is absorbed by something.
OD. The final product is not radioactive.
[tex]\huge{\mathbb{\tt {ANSWER:}}}[/tex]
D. The final product is not radioactive
[tex]\huge{\mathbb{\tt {EXPLANATION:}}}[/tex]
A radioactive decay chain will end when the last particle formed is stable. The initial radioactive isotope is called the parent isotope.
#CarryOnLearning
#LetsEnjoyTheSummer
→X x K i m 0 2 x XA decay chain will end only when the final product is not radioactive.
What is radioactivity?The term radioactivity has to do with the sponteanous disintegration of an atom with the emission of radiation. Usually, there are radioactive decay series for different isotopes.
A radioactive decay series will continue untill a stable isotope is formed hence, a decay chain will end only when the final product is not radioactive.
Learn more about radioactivity: https://brainly.com/question/14356798
are insert gases used in fluorescent
A certain automobile contains 4 tires, 2 headlights, 1 steering wheel,
and 6 spark plugs. How many of each part will be required to build 17 of
these cars?
Answer:
143 parts I think probably not
What is the pH and pOH of a 2.34 x 10^-5 NaOH solution?
Answer:
pOH = 4.63
pH = 9.37
Explanation:
Because NaOH is a strong base, it will completely dissociate, which means you can find pOH by taking the negative log of the concentration of hydroxide ions: pOH = -log(OH) = -log(2.34 x 10⁻⁵) = 4.630784143
To find pH use 14.00 = pH + pOH
pH = 14.00 - 4.630784143 = 9.369215857
What are 2 diseases caused by coronaviruses?
If you hear a weather report say that a low pressure system is coming in, what kind of
weather can you expect?
A
wind
B
polluted air
precipitation
D
heat
Answer:
It would be A
Explanation:
Answer:
A - wind
Explanation:
A low pressure system is a whirling mass of warm, moist air that generally brings stormy weather with strong winds. When viewed from above, winds spiral into a low-pressure center in a counterclockwise rotation in the Northern Hemisphere.
What is the oxidation number of each nitrogen atom (N) in calcium nitrate (Ca(NO3)2)? (3
points)
+2
+3
+5
+6
Calculate the mass of magnesium chloride you would need to dissolve in 4dm of water to
make a 0.9g/dm solution.
Question: Calculate the mass of magnesium chloride you would need to dissolve in 4dm³ of water to
make a 0.9g/dm³ solution.
Answer:
3.6 g
Explanation:
From the question,
Density of magnesium (D) = Mass of magnesium (m)/Volume of magnesium(V)
D = m/V............... Equation 1
Make m the subject of the equation
m = D×V............. Equation 2
Given: D = 0.9 g/dm³, v = 4 dm³
Substitute these values into equation 2
m = 0.9×4
m = 3.6 g.
Hence the mass of magnesium is 3.6 g.
PLEASE HURRY I'M TIMED Where does the flow of energy begin in every ecosystem?
the consumers
the producers
the sun
the herbivores
what is the heating curve on the horizontal line
Answer:
The plateaus or horizontal lines on the graph represent the transition between states of the sample. The first plateau represents the melting (or transition from solid to liquid) and the second plateau represents boiling (or transition from liquid to gas).
Explanation:
PLEASE HELP ASAP
which is a primary consumer?
Picture shown above
zooplankton cod and krill
If the pressure of a gas changes, but the number of moles and volume remain constant, which
of the following values must also change?
Answer:
Pressure
Explanation:
the manager of a bookstore uses the equation s = p - 3.5 to find the price a student pays for books
ill mark brainliest
Answer:
Third one
Explanation:
During the process of photosynthesis, plants use energy from the Sun to transform carbon dioxide from the air into
OA. soil and molecules of sugar.
OB. protein and minerals,
OC.
oxygen gas and molecules of sugar
OD
minerals and liquid carbon dioxide.
OA soil and molecules of suger
2Fe2O3 + C → Fe + 3CO2 You add 28 grams of carbon. You find the actual yield to be 181.2 grams of CO2. What is the percent yield of CO2?
An empty beaker weighs 20g and when filled with
Kensene weighs 60g. If the Volume of the kerosene is 15cm2 calculate
the density of the kerosene
Answer: The density of kerosene is [tex]2.7g/cm^3[/tex]
Explanation:
Density is defined as the mass contained per unit volume.
[tex]Density=\frac{mass}{Volume}[/tex]
Given : Mass of kerosene = mass of beaker with kerosene - mass of empty beaker = 60 g - 20 g = 40 g
Volume of kersone = [tex]15cm^3[/tex]
Putting in the values we get:
[tex]Density=\frac{40g}{15cm^3}[/tex]
[tex]Density=2.7g/cm^3[/tex]
Thus the density of kerosene is [tex]2.7g/cm^3[/tex]
PLEASE HELPPPPPP?????
A solution consists of 10.3 g of the nonelectrolyte glucose, C6H12O6, dissolved in 250. g of ethanol. What is the new freezing point of the ethanol solution
Answer:
-114.6°C is the new freezing point
Explanation:
The addition of a solute to a pure solvent produce the decreasing in the freezing point (Freezing point depression, Colligative property). The equation to find the new freezing point of the mixture is:
ΔT = Kf*m*i
Where ΔT is the change in the freezing point,
Kf is the freezing point depression constant of the solvent = 1.99°C/m
m is molality of the solution (Moles of solute / kg solvent)
i is Van't Hoff factor = 1 for nonelectrolytes
Molality of the solution is:
Moles glucose -Molar mass: 180.156g/mol-
10.3g * (1mol / 180.156g) = 0.05717 moles
kg of solvent:
250g * (1kg / 1000g) = 0.250kg
Molality = 0.05717 moles / 0.250kg =
0.2287m
ΔT = 1.99°C/m*0.2287m*1
ΔT = 0.46°C
As the freezing point of ethanol is -114.1°C, the freezing point of te solution is:
-114.1°C - 0.46°C
= -114.6°C is the new freezing point
4 InS03 + 3 RSC2 --> 2 In Sc3+3 RS04
Using the balanced equation, if you had 4.3 moles of InSoz, what volume would RS04 occupy at
STP?
Answer:
Explanation:
What volume of water is required to prepare 1.50M solution with 2.55 moles of NaCl?
Answer:
?
Explanation:
Molarity is the molar concentration of the moles in a solution. The volume of water required for preparing 1.50 M NaCl solution is 1.7 L.
What is volume?Volume is the number of moles of solute present in a molar concentration of a solution.
Molar concentration is given as,
[tex]\rm Molarity (M) = \dfrac{\text{moles of solute}}{\text{litres of solution}}[/tex]
Given,
Molarity of sodium chloride = 1.50 M
Number of moles of sodium chloride = 2.55 mol
Substituting values in the above equation the volume is calculated as:
[tex]\begin{aligned}\rm Volume &=\rm \dfrac{moles}{molarity}\\\\&= \dfrac{2.55}{1.50}\\\\&= 1.7 \;\rm L\end{aligned}[/tex]
Therefore, 1.7 L of water is required.
Learn more about molarity and volume here:
https://brainly.com/question/892480
Which material would take the longest to cool off once heated?
Liquid water
Lead
Ice
Copper
Answer:
Liquid water
Short Answer/Essay
Note: Your teacher will grade your responses to questions 19 and 20 to ensure you receive proper credit for your answers.
What is global warming? What can people do to reduce global warming?
Answer:
lol global warming is the gradual increase in the temperature of the earth and its atmosphere. this is do to the greenhouse effect caused by increased levels of carbon dioxide.
Explanation:
common knowledge
Predict the reactivity of beryllium compared with magnesium give a reason for your answer use the periodic table
Answer:
Beryllium metal is relatively unreactive at room temperature, particularly in its massive form. Magnesium is more electropositive than the amphoteric beryllium and reacts more readily with most of the nonmetals.
Explanation:
When it comes to the ease with which a positive ion or cation of the metal can form, beryllium is less reactive than magnesium.
What is magnesium ?The chemical element magnesium has the atomic number 12 and the letter Mg as its symbol. It is a glossy, gray metal with a low melting point, high chemical reactivity, and a low density. It only naturally occurs in mixtures with other elements, just like the other alkaline earth metals, and it almost always has an oxidation state of +2.
At room temperature, beryllium metal is largely non-reactive, especially in its massive form. Magnesium interacts more quickly with the majority of nonmetals because it is more electropositive than amphoteric beryllium.
Due to the electron being removed being in the 3-level rather than the 2-level and being further away from the nucleus's attraction, the first ionization energy of magnesium is lower than that of beryllium.
Thus, When it comes to the ease with which a positive ion or cation of the metal can form, beryllium is less reactive than magnesium.
To learn more about magnesium, follow the link;
https://brainly.com/question/1533548
#SPJ2
A student observed pond water through a field microscope. He saw several organisms moving around in the water. His teacher explained that bacteria are too small to be seen with the limited magnification of the field microscope. The unicellular organisms the student observed were most likely from the kingdom -
Answer:
Kingdom Monera.
Explanation:
The unicellular organisms the student observed were most likely from the Kingdom Monera because in this kingdom, unicellular organisms are included which are prokaryotic in nature. Monera is a Greek word means "single" is a kingdom that contains organisms that are made up of one cell and having a prokaryotic cell means having no nuclear membrane and we know that bacteria is also a unicellular organism and prokaryotic in nature.
Write a sentence or mathematical expression that relates each of the
following:
-mass to moles
-moles to mass
-moles to particles
-particles to moles
Answer:
Mass to moles: mass/molar mass=mole
Moles to mass: moles x molar mass = mass
Moles to particles:1mole = 6.022x10^23 particles
Particles to moles: 1 particle =1/(6.022x10^23) mole
Explanation:
True/False: Sometimes people have to make modify or make adjustments to the land so that we can use it to farm.
_______ have cells that are all dried out.
Explanation: the answer plant seeds
not skin
Which of the selections completes the following nuclear reaction?
Answer:
najsbsbsmnshzhskwjzhhsbsbsbsbzbbsnzn
hsnznzkskzjbxbs
gasjhsjsbabakjahajakqjahsvhwksbxbwhsjkxjsjshshshshshhshshshsjshxhsbsbsbsbhshshdbdbbdbdbdhbsjajshshshsjsksksjsjsjjsbsksshshssgsgsbsbvsgsbsjsksjsjxjxjksksjgshkajahsgshsjsjabavsvshwhsggehsjsjsjdnsjajs
Answer:
uhh the Neutron i guess lol you didn't give any choices or explanation
Explanation:
how many liters would you need to make a 1 M solution if you have 6 mol of Sodium Hydroxide
a. 3
b. 4
c. 6
d. 2
One mole of NaOH = 40g NaOH
One mole of NaOH = 40g NaOHso to prepare 1M NaOH we need to dissolve 40g NaOH in water
One mole of NaOH = 40g NaOHso to prepare 1M NaOH we need to dissolve 40g NaOH in wateraccording to the given data,
One mole of NaOH = 40g NaOHso to prepare 1M NaOH we need to dissolve 40g NaOH in wateraccording to the given data,we have 6 moles of NaOH so we need 6 litres of Water olto prepare 1M Solution