Answer:
Oxidation
Explanation:
Mg loses 2e- for it to gain it's stability hence the reaction above is oxidation
note: Oxidation is the loss of electrons while reduction is the gain of electrons
A sample of sodium hydroxide of volume 13.9 mL was titrated to the stoichiometric point with 20.6 mL of 0.209 M HCl(aq). What is the initial molarity of NaOH in the solution? Answer in units of M
Answer:
Explanation:
NaOH + HCl = NaCl + H₂O
1 mole 1 mole
moles of hydrogen chloride reacted = .0206 x .209
= 4.3054 x 10⁻³ moles .
moles of sodium hydroxide reacted will be same = 4.3054 x 10⁻³ moles
Let x be the molarity of NaOH
13.9 mL of x molarity will contain
.0139 x moles
.0139 x = 4.3054 x 10⁻³
13.9 x 10⁻³ x = 4.3054 x 10⁻³
x = .3097 M .
= .31 M .
Find the mass of 3.89 mol of NaF
the mayor refused to _______ as to his margin of victory in the election.
a.) drudgery
b.)prognosticate
c.) implored
Answer:
prognosticate
Explanation:
foretell or prophesy (an event in the future).
"the economists were prognosticating financial Armageddon"
which kingdom does spiny lobster, and diatom belong to?
Answer:
Animalia
Explanation:
1. What is the density of a 75 g block of wood measuring 12 cm x 8 cm x 9 cm?
Answer:
0.087 g/cm^3
Explanation:
Density is Mass : Volume.
Volume = 12 x 8 x 9 = 864 cm^3
Mass = 75 g
Density = 75g/864 cm^3 = 0.087 g/cm^3
The density of a 75 g block of wood measuring 12 cm x 8 cm x 9 cm is 8.6 x 10⁻⁵ Kg/cm³.
What is density?
Density is defined as the mass per unit volume of the body. Mathematically-
ρ = M/V
Given is a 75 g block of wood measuring 12 cm x 8 cm x 9 cm.
We can write -
Mass = [m] = 75 g = 75/1000 = 0.075 Kg
Volume = [V] = L x B x H = 12 x 8 x 9 = 864 cm³
Therefore, the density of the object will be -
ρ = M/V
ρ = 0.075/864
ρ = 8.6 x 10⁻⁵ Kg/cm³
Therefore, the density of a 75 g block of wood measuring 12 cm x 8 cm x 9 cm is 8.6 x 10⁻⁵ Kg/cm³.
To solve more questions on density and mass, visit the link below-
https://brainly.com/question/2900792
#SPJ2
One of the following derivations is correct which one
Someone who looks after all of the different area managers in a large corporation such as in HR, Business Information, and Operations is called a:
The person who looks at the different area managers in a large corporation such as in HR, Business Information and Operations is known as a general manager.
What is organizational structure?An organizational structure can be described as the process which involves dividing an organization into several functional units. A functional organizational structure is a kind of structure used to organize staff by categorizing them into several departments based on their roles or functions, skill sets, and knowledge.
These departments are vertically structured and may include IT, sales, finance and marketing, research, customer service, etc. The various departments are headed by functional managers who have the responsibility of managing, overseeing, and reporting to the executive management.
A manager is an individual who has the responsibility of providing guidance, supervision, support, and administrative control, as well as acting as a role model to the employees working in an organization.
Generally, managers are involved in taking up leadership roles and are expected to build strong relationships with their subordinates by providing a fair ground for effective communication and sharing of resources.
Learn more about organizational structure, here:
https://brainly.com/question/12789625
#SPJ1
Static electricity is produced when _____.
atoms gain protons
atoms gain or lose electrons
atoms lose neutrons
electrons move through materials
Answer:
Atoms gain or lose electrons
Explanation:
When the sun shines directly on objects, white objects remain cooler than black objects. This difference in temperature is because more of the light striking white objects is–
Answer:
The amount of sun that is being reflected and how hot the sunlight being reflected is
Explanation:
7.
Which equation is correctly balanced?
what is sodium chloride
Answer:
Sodium chloride, commonly known as salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions.
Explanation:
I HOPE THIS HELPS YOU OUT WITH YOUR QUESTION! PLZ LET ME KNOW IF IT DID! IT MAKES ME FEEL GOOD THAT SOMEONE APPRECIATES IT! ANYWAY, IF YOU HAVE A FEW MINUTES PLZ GOT TO MY PROFILE AND THANK MY ANSWERS (THE MORE THE MERRIER)
The frequency of the musical note F3 is 1.85 102 hertz. What is its period?
A 5.40 x 10-3seconds
B. 1.05 x 10-3 seconds
C. 3.09 x 10-3 seconds
D. 5.31 x 10-1 seconds
Answer: 0.0054 s
Explanation: There is an inverse relation between the frequency and the period of a wave (a sound wave in this case):
T=1/F
Where f = 1.85 (10)² H z
Hence : T = 1/1.85 (10)² H z T =0.0054s
First person with the right answer gets brainliest thanks (btw the numbers on the right are the answers choose the right one)
Question 10
Which chemical species is an intermediate in the formation of the goal reaction?
Answer:
C. C
Explanation:
Intermediates are species that are neither reactants nor products.
In this reaction;
Reactant = C3H8 and O2
Products = CO2 + H2O
From the options, the only element that is either the reactants nor products is;
C. C
(I got 4 questions for the day.)
Isotopes are elements with the same # of protons but a different # of_____.
A.Electrons
B. Neutrons
C. Atoms
How many Neutrons are in this isotope of oxygen?
A.8
B.18
C.10
D.12
How many neutrons are in this isotope of carbon?
A.6
B.7
C.13
D.19
How many neutrons does the isotope of phosphorus have?
A.15
B.25
C.10
D.5
Answer:
A) Electrons
A) 16-8=8 so it'd be 8
(Relative atomic mass - atomic number = neutrons)
A) 12
Same thing as last one.
31-15=16 ( did you type the wrong options if not then huh?)
Explanation:
Shown in the table below are solubility data for different salts in water at 60oC.
Which salt is most soluble at 60o C?
A, B, C, or D.
(Chart Below:)
Answer:
D is the most soluble in water at 60 degrees Celsius
According to the data given in the table, the salt is most soluble at 60o C - salt D.
In the given table it is given that all the salts are soluble in different concentrations in different concentrations of the water at the same temperature of 60 degrees celsius.
Salt A - 10/ 50 grams H₂OSalt B - 20/60 grams H₂OSalt C - 30/120 grams H₂OSalt D - 40/120 grams H₂OConverting them in the same amount of H₂O that is 100 grams in the same ratio:
Salt A - 10/ 50 = x/100 gram = 20 gram/ 100 gram H₂OSalt B - 20/60 = x/100 grams = 33.3 gram/ 100 gram H₂OSalt C - 30/120 = x/100 grams = 25 gram/ 100 gram H₂OSalt D - 40/120 = x/100 grams = 50 gram/ 100 gram H₂OThus, the salt D is the most soluble that is 50 grams per 100 gram H₂O.
Learn more:
https://brainly.com/question/22185953
which formation is a result of a hotspot
Answer:
Hotspots occur when one of the Earth's plates moves over an unusually hot part of the Earth's mantle. These hot areas are usually relatively stationary and result in large amounts of magma rising up, piercing a hole in the plate to form a volcano. As the plates move, a series of volcanoes can form.
This yellow nonmetal with a distinct odor is used in the manufacture of
gunpowder, the vulcanization of rubber, and in insecticides and
medicinal drugs.
Answer: it is Sulphur, S
Explanation:
3. What are the Earth's Poles? *
2 points
The Earth has a North Pole where Santa class lives and a South Pole where all the
enemies of Santa Claus live
O
The Earth has magnetic poles like a magnet. It has magnetic north and south poles
just like a magnet.
The Earth's Poles are places where people gather together to drink nonalcoholic
drinks.
Explanation:
I think the answer is 2nd
What is true love? Real love
Answer:
Both of you guys love each other, and call in phones, not in texts.
Explanation:
Did you know if someone really loves each other, they call eachother instead of texting?
The mass in grams of an Avogadro number of molecules is its:
O formula mass
O molar mass
O inertial mass
O atomic mass
Select the correct answer.
Observe the two images. What is the correct conclusion?
copper in hot
sulphuric acid
bunsen burner
copper in
hydrochloric acid
Image 1
Image 2
O A. Copper reacts with any kind of acid.
B. Copper does not react with acids.
Conner rearts with sulfuric acid when heated
Calvin goes for a walk outside and begins to sweat. His sweat will not evaporate. What is the most likely cause of this?
D. A wind speed of 40 mph
E. An air temperature of 7 °C or 45 °F
F. A strong northerly wind
G. A relative humidity of 95%
Answer:D
Explanation:it makes sense alot
Answer: D) A relative humidity of 95%
Explanation:
First person with the right answer gets brainliest thanks (btw the numbers on the right are the answers choose the right one)
The Sun is made up of approximately 75% hydrogen and 25%
Answer:
The Sun, like others stars, is a ball of gas. In terms of the number of atoms, it is made of 91.0% hydrogen and 8.9% helium. By mass, the Sun is about 70.6% hydrogen and 27.4% helium.
Explanation:
helium is probs ur answer!
structuric formula of SO2
How many grams of H2 are produced from the reaction of 30.0g of NaOH?
Answer:
no se la verdad de la respuesta
Find the mass of 1.59 mol of NH3
Answer:
27.03 grams
Explanation:
moles (n) = mass(m)/Molar mass(M)
moles = 1.59
mass = ?
N = 14, H = 1
M(NH3) = 14 + 3(1) = 17
Substitute the values into the equation:
nM = m
∴ m = 1.59 × 17 = 27.03
PLEASE HELP ASAP IT'S TIMEDDDDD
A single electron configuration can represent multiple atoms. The one below represents the following atoms with different charges. Determine what charge they need to match the electron configuration. 1s²2s²2p⁶3s²3p⁶4s²3d⁷
Answer:
To have the electronic configuration equal to 1s²2s²2p⁶3s²3p⁶4s²3d⁷, the chemical element must have an electrical charge equal to 27, that is, it must have 27 electrons, such as Cobalt (Co), for example.
Explanation:
The electronic configuration shown in the question above is known as the Linus Pauling distribution and represents the energy sub-levels that an electrically charged atom can have in relation to the amount of electrons it has.
The layers sub-levels are presented in the following order 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹º 4p⁶ 5s² 4d¹º 5p⁶ 6s² 4f14 5d¹º 6p⁶ 7s² 5f14 6d¹º 7p⁶. Where the small numbers represent the number of electrons in each sub-level and the large numbers represent the layers of electronic distribution.
Accordingly, we can see that an atom that has the configuration 1s²2s²2p⁶3s²3p⁶4s²3d⁷ has 27 electrons, like Cobalt.