Answer:
total moles of individual elements
1
Explain how adding crushed limestone reduces the acidity of the soil. Include a
general equation for the reaction.
Answer:
If a soil test indicates low magnesium, dolomitic limestone can be used to correct both the nutrient deficiency and pH. The value of limestone is in its ability to neutralize soil acidity. Limestone's properties differ considerably, and these differences influence the limestone's ability to neutralize soil acidity.
Explanation:
HAVE A GOOD DAY
How many moles of silver would you have if you have 550 g of silver?
Answer:
5.1 mol
Explanation:
Silver's molar mass is 107.8682
550/107.8682=5.09881503539
Or if you round it's = 5.1
Answer:
5.0
Explanation:
https://www.convertunits.com/from/grams+Silver/to/moles
this is what I used, this maybe be useful later.
PLS HELP ASAP NO LINKS PLS
Which of the following is the most common source of pollution?
oil
coal
nuclear
gas
Answer:
Coal puts out more Co2 emissions than Oil or Gas and Nuclear energy plants don't put out any pollution.
Explanation:
Even though Coal is your answer it is actually a very clean form of generating energy. Not only is it very clean but it is the most effecient means. Solar and Wind power can't even come close to the production and turnover that Coal, Gas, and Oil can. Wind Turbines are so innefficent that they somtimes don't even pay off what it took to build them in thier lifetime of service. The production of Wind Turbines puts out more pollution than any of the Coal or Natural Gas Plants. Solar power is not very efficent either but it is on it's way. It is also very expensive.
Question 2 Mid-ocean ridges are formed along where two plates diverge under the water. O True O False
Answer:
TrueExplanation:
If 50 grams of CaCl2 are dissolved in 100g of water at 40°C, the solution is:
O unsaturated
O saturated
O supersaturated
Answer:
sog-20g=30g
Explanation:
An isotope has a half life of 5 minutes. How much of a 100 gram sample of this isotope is left after 20 minutes?
Answer:
6.25 gram
Explanation:
Applying,
R = R'([tex]2^{a/n}[/tex])................ Equation 1
Where R = Original mass of the isotope, R' = mass of the isotope left after disintegration, a = Total time, n = half life.
make R' the subject of the equation
R' = R/([tex]2^{a/n}[/tex])................. Equation 2
From the question,
Given: R = 100 gram, a = 20 munites, n = 5 minutes.
Substitute these values into equation 2
R' = 100/([tex]2^{20/5}[/tex])
R' = 100/[tex]2^{4}[/tex]
R' = 100/16
R' = 6.25 gram
what are specatator ions
Answer:
A spectator ion is an ion that does not participate in a chemical reaction and is found in a solution before and after a reaction.
Hope this helped :)
Hydrogen chloride gas reacts with water to produce an acidic solution. The equation for
the reaction is shown.
HCI + H2O → CI + H2O
Which statement describes what happens during the reaction?
A The chloride ion is formed by accepting an electron from the water.
B The hydrogen chloride loses an electron to form the chloride ion.
C The water accepts a proton from the hydrogen chloride.
D The water donates a proton to the hydrogen chloride.
neid.
Answer:
C The water accepts a proton from the hydrogen chloride.
Explanation:
The equation given in this question where hydrogen chloride reacts with water is as follows:
HCI + H2O → CI- + H3O+
From this equation, hydrogen chloride (HCl) loses or donates hydrogen ion (H+) or proton to water (H2O), which accepts it to become hydronium ion. Hence, in a nutshell, water (H2O) accepts a proton (H+) from the hydrogen chloride (HCl) in this reaction.
Explain what it means to be considered a “renewable” energy source, and what it means to be a “non-renewable” energy source.
Answer: Resources are characterized as renewable or nonrenewable
- a renewable resource can replenish itself at the rate it is used such as solar energy, wind energy, hydro energy, and tidal energy.
- a nonrenewable resource has a limited supply such as coal, gas, nuclear energy, and fossil fuels.
Help Me Please , I'm hopeless
Answer:
F
Explanation:
En 210 gramos de una solucion acuosa estan disueltos 12 gramos de nitrato de plata agno3 cuel es la concentracion porcentual en masa de la solucion
Answer:
%m/m = 5,71%
Explanation:
En este caso, estamos hablando de un ejercicio de porcentaje masa/masa, y debemos aplicar la siguiente expresión o formula:
%m/m = msto / msol * 100 (1)
Donde:
msto: masa de soluto, en este caso los 12 g de nitrato de plata.
msol: masa de solución, en este caso los 210 g.
%m/m: porcentaje masa/masa o concentración porcentual que nos piden.
Todo lo que debemos hacer ahora es reemplazar los datos que el ejercicio nos da en la expresión (1) y llegaremos a la respuesta:
%m/m = 12 / 210 * 100
%m/m = 0,057 * 100
%m/m = 5,71%Esta es la concentración porcentual de la solución.
Mucha suerte
Relate the strength of a weak acid to the strength of a conjugate base.
It’s a textbook question :/
Answer:
There is a relationship between the strength of an acid (or base) and the strength of its conjugate base (or conjugate acid): The stronger the acid, the weaker its conjugate base. The weaker the acid, the stronger its conjugate base. The stronger the base, the weaker its conjugate acid.
explanation
The strength of an acid and a base is determined by how completely they dissociate in water. Strong acids (like stomach acid) break down or dissociate in water. Weak acids maintains their protons in water.
What kind of nuclear reaction occurs in the following reactions?
Answer:
No 1 is fission
while no 2 is fusion
Fission is splitting on nucleus while fusion is forming heavier nucleus with nuclei
The kind of nuclear reaction that occurs in the following reactions are:
i. nuclear fission
ii. nuclear fusion.
What is a nuclear reaction?Nuclear reactions are that reactions in which a nucleus or nuclei collides with subatomic particles to form another, different nucleus. There are two types of collisions. Nuclear fission and nuclear fusion.
Nuclear fission is a process when large nuclei split and create small, numerous nuclei. It happens due to the instability of an atom. It split into two daughter nuclei.
Nuclear fusion is a process in which two or more small nuclei combine to create a large, heavy nucleus. The process releases a large amount of energy or can be absorbed.
Thus, the processes are i. nuclear fission
ii. nuclear fusion.
Learn more about nuclear reactions, here:
https://brainly.com/question/10104286
#SPJ2
When C20H42 cracked, each molecule produces one molecule of ethene,
one molecule of butane and two molecules of hydrocarbon E.
What is the molecular formula of E?
A CH13
B C,H14
C CH26
D C4H28
Answer:
D C4H28
Explanation:
Which happens when a reversible reaction reaches a state of chemical equilibrium?
A. The system runs out of reactant particles.
B. The concentrations of reactants and products are equal.
C. The activation-energy barrier is eliminated.
D. The rates of forward and reverse reactions are equal.
'The function of an organism as a whole is organ of the combined activities and interaction of the constituent of the cells.' give reason
Answer:
Because organism is made up of organs
organs are made up of tissues
tissues are made up of cells
Therefore interaction of cells give outcome to tissue which further show's results in organs and to organ system and then to the body as a whole
Explanation:
What does the respiratory system do?
Answer:
Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases.
Answer:
Supply the body with Oxygen
Explanation:
The respiratory system helps remove waste gases and help you breath
(Your respiratory system consists of your lungs, mouth, and windpipe)
Given the unbalanced equation: Li + N2 -> Li3N When the equation is
correctly balanced using smallest whole numbers, the coefficient of the
Lithium is
A.1
B.2
C.3
D.6
Answer:
D) 6
Explanation:
The balanced equation would be:
6Li + N2 -> 2Li3N
To calculate the atoms of an element in a given molecule, we need to multiply stoichiometry by the number that is written on the foot of that element. Therefore, the correct option is option D.
What is Balanced equation?Balanced equation is the one in which the total number of atoms of a species on reactant side is equal to the total number of atoms on product side. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, displacement reaction.
The other characteristic of balanced reaction is that physical state should be written with each compound or molecule on reactant and product side. Physical state should be written in brackets. s means solid, l means liquid, g means gas.
The skeletal equation is
Li + N[tex]_2[/tex] [tex]\rightarrow[/tex] Li[tex]_3[/tex]N
The number of atoms of nitrogen on reactant side is 2 while on product side it is 1 so to balance
Li + N[tex]_2[/tex] [tex]\rightarrow[/tex] 2Li[tex]_3[/tex]N
The lithium atom on reactant side is 1 while on product side it is 6, so to balance
6Li + N[tex]_2[/tex] [tex]\rightarrow[/tex] 2Li[tex]_3[/tex]N
The coefficient of the Lithium is 6.
Therefore, the correct option is option D.
Learn more about the balanced equation, here:
https://brainly.com/question/7181548
#SPJ2
Can somebody please give me the IMF types of the following compounds?
NH3
HCL
CH4
My choices are Dispersion, Dipole Dipole, or Hydrogen Bonding.
Answer:
NH3 is Ammonia Which is Hydrogen Bonding
HCL is hydrochloric acid which is Dipole Dipole
CH4 is Methane which is Dispersion
Why is it necessary for the triceps to be the contracting muscle when throwing
Explanation:
The triceps contract to allows the arm to extend and flex while throwing
Plzzzz Help!!!!
What is the molarity of a solution that contains 1.45 moles of KCl in 1, 250 mL of
solution?
Molarity of the solution is 5.8M
Given :
moles of solute (n) = 1.45
Volume of solution (V) = 250 ml
WHAT IS MOLARITY ??
Molarity of a solution is defined as the number of moles of the solute dissolved per litre of the solution. It is represented as M . Thus a solution, which contains one gram mole of the the solution dissolved per litre of the solution is regarded as .
M = n of solute / Vol (L)
= [tex]\frac{1.45 * 1000}{100 * 250}[/tex] = 5.8 M
Learn more about molarity at https://brainly.in/question/1159016
#SPJ2
A gas occupies 11.2 L at a pressure of 35.0 mm . What is the volume of the gas if it is Increased to a pressure of 64.0 mm Hg?
A) 6.13 L
B) 110.2 L
C) 200.0 K
D) 20.5 L
Explanation:
[tex]from \: boyle's \: law \\ P _{1} V _{1} = P _{2} V _{2} \\ 35 \times 11.2 = 64 \times V _{2} \\ V _{2} = \frac{35 \times 11.2}{64} \\ V _{2} = 6.125 \: L[/tex]
The volume of the gas is 6.13 l if it is increased to a pressure of 64.0 mm Hg.
Boyle's LawBoyle's law is a gas law which states that at constant temperature, the pressure of a given quantity of a gas varies inversely with its volume occupied by it.
According to the Boyle's Law:
PV = constant
Thus,
[tex]P_{1}V_{1} = P_{2} V_{2}[/tex]
where,
[tex]P_{1}[/tex] is the initial pressure
[tex]V_{1}[/tex] is the initial volume
[tex]P_{2}[/tex] is the final pressure
[tex]V_{2}[/tex] is the final volume
Now, put the values in above equation we get
[tex]P_{1} V_{1} = P_{2} V_{2}[/tex]
35.0 × 11.2 = 64.0 × [tex]V_{2}[/tex]
392 = 64.0 × [tex]V_{2}[/tex]
[tex]V_{2}[/tex] = [tex]\frac{392}{64}[/tex]
[tex]V_{2}[/tex] = 6.13 L
Thus, the volume of the gas is 6.13 l if it is increased to a pressure of 64.0 mm Hg.
Learn more on about the Boyle's Law here: https://brainly.com/question/1696010
#SPJ2
PLZ HELP!
Have you ever heard someone try to speak or make noise underwater? Describe the experience.
IN YOUR OWN WORDS PLZ! :D
Answer:
A few years back I back in 8th grade I head somewhat of a scream underwater, at first I was amazed at the sound but I suddenly realized how physically possible, the only way to make noise under water is to breath in the water and that can drown you, as I heard this I almost immeaditetly bolted out of the water and saw someone either trying to destroy their lungs themselves or being uneducated, they ended up stopping after a bunch of people started staring at them.
Explanation:
electronic configuration of transition metals
Explanation:
The electron configuration for the first row transition metals consists of 4s and 3d subshells with an argon (noble gas) core. This only applies to the first row transition metals, adjustments will be necessary when writing the electron configuration for the other rows of transition metals.
however, when the temperature increases, the solubility of gaseous solutes will _______?
Answer:
Decrease
Explanation:
Since the speed in which the gas molecules are faster as they are heated, they fly around in the container and logically, it is harder to insert a moving object into water than something more stationary or slower.
Which of the following best helps explain why an atom of Rb gas more easily loses an electron in a chemical reaction than an atom of Li gas?
Α. Rb has a higher electronegativity than Li has.
B. The Rb atom has a greater number of valence electrons than the Li atom has.
C. The nucleus of the Rb atom has a greater number of protons and neutrons than the nucleus of the Li atom has.
D. In the Rb atom the valence electron is farther from its nucleus than the valence electron of Li is from its nucleus.
Answer:
D
Explanation:
In the Rb atom the valence electron is farther from its nucleus than the valence electron of Li is from its nucleus
A sample of pure water contains
A. a smaller concentration of H3O+ ions than OH- ions.
B. a larger concentration of H3O+ ions than OH- ions.
C. equal concentrations of OH- and H3O+ ions.
D. neither OH- ions nor H3O+ ions.
mixture of same boiling point cannot be separated by using distillation why?
Answer:
both the substances will evaporate
Explanation:
HELP will mark as brainliest Which best explains how elements are arranged on the modern periodic
table?
Elements are arranged from fewest protons to most protons.
Elements are arranged from most protons to fewest protons.
Elements are arranged from fewest neutrons to most neutrons.
Elements are arranged from most electrons to fewest electrons
Answer: Elements are arranged from fewest protons to most protons.
Explanation:
The elements are on the modern periodic table from fewest protons to most protons. The correct option is A.
What is modern periodic table?It is defined as a table with elements organized into groups and periods. The elements in the modern periodic table are arranged in increasing atomic number order. This periodic table contains groups and periods. The dates are organized in horizontal rows.
Dmitri Mendeleev, a Russian chemist, created the framework for the modern periodic table in 1869, leaving gaps for elements yet to be discovered.
The elements in the modern periodic table are arranged according to their atomic number rather than their relative atomic mass.
The elements in the periodic table are organized into rows, called periods, in increasing atomic number order.
Vertical columns, referred to as groups, in which the elements have similar properties.
Thus, the correct option is A.
For more details regarding modern periodic table, visit:
https://brainly.com/question/14263046
#SPJ6
En qué consistió el experimento de Rutherford?
Answer:
The gold foil experiment
El experimento de la lámina de oro
Explanation: