is Nb6+ a oxidizing agent?
Answer:
yes
Explanation:
because of high positive charge of Nb6+ delta G is more negative for Nb6+ as an oxidising agent♡
Answer:
So Sn2+ is a reducing agent (oxidises itself to Sn4+ hence becoming stable) while Pb2+ is already stable so it neither undergoes oxidation nor reduction.
what method would we use to measure how colour changes during a reaction???
Answer:
There are a number of ways that you could investigate the effect of changing the temperature on the rate of a reaction in Chemistry. ... This includes using apparatus safely, and monitoring chemical changes.
Explanation:
There are three main methods of measuring rate:
measuring the volume of gas given off by a reaction over time.
measuring the loss of mass of a reaction over time when a gas is produced.
Ocean water density varies more at the the poles throughout the year than at the equator.
Lesson 2.08
True
False
Answer:
true
Explanation:
i go to k12
Ocean water density varies more at the the poles throughout the year than at the equator. Therefore, the given statement is true.
What is density?Density is the mass of a specific material per unit volume. d = M/V, in which d is density, M is weight, and V is volume, is the formula for density. Grams per cubic centimeter are a typical unit of measurement for density. For instance, whereas Earth has a density of 5.51 grams, water has a density of 1 milligrams.
Particle density, which is typically represented as n, describes the number of particles per volume instead of the density of either a single particle. Ocean water density varies more at the the poles throughout the year than at the equator.
Therefore, the given statement is true.
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HELPPPP!!!! Which statement about plants is accurate?
A.
Plants derive energy to grow from nutrients in the soil.
B.
Plants use sunlight and carbon dioxide to create food.
C.
Plants use oxygen and water to create food.
D.
Plants derive energy to grow from water and nutrients.
Answer:
B. Plants use sunlight and carbon dioxide to create food.
Explanation:
This process is called photosynthesis
name the following compound Mol2
Answer:
you cant answer this
Explanation:
you left something out of the question
What’s the answer???
Answer:
Well I know that the first one is true.
Explanation:
Answer:
1. TRUE
2. FALSE
3. C
Explanation:
How would you calculate an object’s mechanical energy?
Which figures are not significant? *
trailing zeros to the left of an invisible decimal point
leading zeros to the right of a decimal point
leading zeros to the left of a decimal point
all of the above
none of the above
Answer:
leading zeroes to the left of a decimal point. and trailing zeros to the left of an invisible decimal point.
Explanation:
All nonzero digits are significant figures. Example: 713 has three significant figures. 18,991 has five significant figures.Zeros located between two nonzero digits are significant figures. Example: 505 has three significant figures. 17,009 has five significant figures.Zeros at the ends of numbers are only significant if there is a decimal point in the number. Example: 502.00 has five significant figures (5,0,2,0,0). 5020 has three significant figures (5,0,2) 100,000 has one significant figure (1)Zeros that come before the first nonzero digit are not significant. Example: 0.0007 has one significant figure (7). 0.0970 has three significant figures (9,7,0)Make a diagram showing how communication satellites could be used to relay
information from a broadcasting station in new york to a receiving station in
london.
Answer:
Explanation:
Satellite acts as a relay station for earth sources. A transmission station sends the information to the satellite, which in turn retransmits to the receiving stations. The original signal being transmitted from the earth station to the satellite is called uplink of 6 GHz The retransmitted signal from the satellite to the receiving station is called downlink of 4 GH frequency. The transponder is the transmitter-receiver combination in a transponder.
What’s the answer????
Answer:
1. C
2. A
3. A
Explanation:
Glucose is a molecule that organisms can use to release energy, and that is made of nitrogen, lead, and palladium attoms (true false)
Answer:
true
Explanation:
Balance the equation c2h2(g)+o2(g)-->co2(g)+h2o(g)+heat
Answer: 2C2H2 (g) + 5O2 ----> 4CO2 (g) + 2H20 (g) + heat
Explanation:
How many moles each element are in a mole of methane?
[tex] \large \mathcal{ANSWER}[/tex]
This means that the mass of one methane molecule is 12.011 u + (4 × 1.008u), or 16.043 u. This means that one mole of methane has a mass of 16.043 grams. A mole can be thought of as two bags of different sized balls. One bag contains 3 tennis balls and the other 3 footballs.
Samples of helium (He), nitrogen (N 2 ), and methane (CH 4 ) are at STP. Each contains 1 mole or 6.02 × 10 23 particles. However, the mass of each gas is different and corresponds to the molar mass of that gas: 4.00 g/mol for He, 28.0 g/mol for N 2 , and 16.0 g/mol for CH 4 .
Shown above is information about the dissolution of AgCl(s) in water at 298K. In a chemistry lab a student wants to determine the value of s, the molar solubility of AgCl, by measuring [Ag+] in a saturated solution prepared by mixing excess AgCl and distilled water. How would the results of the experiment be altered if the student mixed excess AgCl with tap water (in which [Cl−]=0.010M) instead of distilled water and the student did not account for the Cl− in the tap water?
Answer:
Value for K would be too small. Less AgCl would dissolve due to the common ion effect due to the presence of Cl- in the water.
Explanation:
Think of this through the lenses of a shifting problem. Cl- ions are a product in this situation and increasing its concentration would shift the reaction back to the solid AgCl. In this specific case, due to Cl- ions, AgCl would dissolve less to maintain equilibrium and as a result, the concentrations of Ag+ and Cl- ions would be lower than normal making a smaller K value.
In the solution of AgCl in tap water, the dissociation constant K has been decreased.
The dissolution of silver chloride in water results in the formation of silver ions and chloride ions.
The dissociation constant has been the amount of compound that has been dissociated into the constituent ions at equilibrium.
Dissociation constant for AgClThe dissociation constant has been dependent on the number of ions in the solution that has been present.
The common ion effect has been defined as the change in the dissociation constant for the compound with the presence of common ions in the solution.
The dissociation of AgCl in tap water has been resulted with presence of Cl ions in the solution. There has been early reach to the equilibrium in tap water.
Thus, with the solution of AgCl in tap water, the dissociation constant K has been decreased.
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Which of the following shows the conservation of mass during cellular
respiration? *
O 6 H2O + C6H1206 – 6 02 + energy
O C6H1206 +6 02 - 6 CO2 + 6H20 + energy
O 6 CO2 + 6 H20 + energy - C6H1206 + 6 02
O 3 CO2 + 3 H20 + energy - 3 C6H1206 +3 02
Answer:
C6H12O6 + 6O2 - 6CO2 + 6H2O + ENERGY
Explanation:
Let me know if I'm right
The four balls in the diagram below are made of the same material and are solid.
Pair 1
Pair 2
Why is the force of gravity between the balls in Pair 2 greater than the force of gravity between the balls in Pair 12
PI
The balls in Pair 2 are closer together than the balls in Pair 1.
The balls in Pair 2 have a greater mass than the balls in Pair 1.
O The balls in Pair 1 have more rolling friction than the balls in Pair 2.
The balls in Pair 1 have more magnetic force than the balls in Pair 2.
Hidden
Ops
Answer:
The balls in Pair 2 have a greater mass than the balls in Pair 1.
What size volumetric flask would you use to create a 1.25 M solution using 29.75 g of MgCl2?
Answer:
250 ml
Explanation: I got it right on the lab.
The size of the volumetric flask that would you use to create a 1.25 M solution using 29.75 g of MgCl₂ is 250mL.
How do we calculate volume of the solution?
Volume (V) in liter of the solution will be calculated by using the molarity (M) formula as:
M = n/V, where
n is the moles of the solute and it will be calculated by using mass as:
n = W/M, where
W = given mass
M = molar mass
Moles of 29.75g of MgCl₂ = 29.75g / 95g/mol = 0.313 mol
Given that molarity of solution = 1.25M
On putting values on the equation of molarity we will get the value of volume as:
V = 0.313 / 1.25 = 0.2504 L = 250mL
For the preparation of 250 mL of MgCl₂ solution we required the volumetric flask of 250 mL.
Hence volumetric flask of 250mL is required.
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describe how the particles in the pot transfer energy
Answer: When they do, they transfer some of their energy. The energy is transferred from particle to particle. It is sort of like a row of dominoes falling over. In this process, thermal energy moves through a substance. It can even move into other nearby substances. In Figure above, conduction occurs between particles of the metal in the pot. It also occurs between particles of the pot
Explanation:
determine the number of molecules in 43.9 g of carbon tetrachloride
Answer: There are about 0.28 molecules in 43.9 g of carbon tetrachloride. If you are rounding up, it would be 0.3
Explanation:
2NaHCO3 + 3CaCl2 → CaCO3 + 2NaCl + H2O + CO2
Which statement is true about the equation above?
There are 3 chlorines on the reactant side and 3 chlorines on the product side of this equation.
There are 3 chlorines on the reactant side and 3 chlorines on the product side of this equation.
There are 3 calciums on the reactant side and 2 calciums on the product side of this equation.
There are 3 calciums on the reactant side and 2 calciums on the product side of this equation.
There are the same number of oxygen atoms in the reactants and the products. There are the same number of oxygen atoms in the reactants and the products.
This equation does not follow the law of conservation of mass.
Answer:
There are the same number of oxygen atoms in the reactants and the products
Explanation:
However the equation is not balanced
3 Ca on one side and 1 on the other
What is the main point of the reading? Group of answer choices Many elements combine to make a few compounds. Hawaii is made up of only a few types of compounds A few elements combine to make many compounds. Elements cannot be combined except by artificial means.
Answer:
A few elements combine to make many compounds.
Explanation:
The heading of the reading is 'Few elements, many Compounds'. The reading has focused on the process involved in the formation of elements and compounds. In the Hawaiian Islands the elements are found in abundance. These elements combine together to form compounds. The mountains, greenery, rocks and living matter are made up of many elements and compounds. The elements present helps in forming various compounds.
how to round the decimal 4.15 to the hundredths place?
Answer:4.15 is already in the hundreths place so you are good!
if it was 4.155 then you would round it to 4.16 but its NOT that so the answer IS 4.15
Explanation:
Since the number of atoms in a substance is so large, a unit to count them was created. This unit is the number of atoms in 12
grams of carbon-12 known as
A)
a mole
B)
a formula unit
Avogadro's number
D)
an atomic mass unit
Q4) The changes that occur in an experiment that are directly caused by the experimenter (you) are called ___________.
Answer:
Independent Variables
Explanation:
These are changes that are made by the experimenter. They are factors that one is able to manipulate or control their values.
1. How are atoms held together? What is the attraction between?
Answer:
the atom is held together by the electrostatic attraction between the positively charged nucleus and the negatively charged electrons surrounding it, the stability within chemical bonds is also due to electrostatic attractions.
Explanation:
Answer:
Some type of bond (example: hydrogen bonds between water)
Polarity can also hold atoms together
hope this Helped!
Consider a star with a surface temperature of 12,000
K. According to the graph, the star's peak wavelength
is in the
A) ultraviolet range.
B) radio wave range.
C) visible light range.
D) infrared range.
Answer:
a
Explanation:
Answer:
A. ultraviolet range
Explanation:
please tell me answers I am given you brainliest
Answer:
1 = one
2 = fluorine
3 = Bromine
4 = increase
5 = first increaseas and then decreases
hope it helps
What is defined as a state of matter with a defined volume and shape?
A. Gas
B. Liquid
C. Plasma
D. Solid
Answer:
gas is the state of matter with a defined volume and shape
how do we know that all the continents were all together at one point in time. writing prompt and it has to be at least 7 sentences
Answer:
We can tell by how the continents look. Scientists who propose the pangea theory have said this. You can see for yourself because all the continents look like puzzle pieces you could put together. Scientists can also tell from the species. For example, let's say a scientist found a bone of a creature at the edge of a continent, the edge of another would have the same species. They have also calculated that the continents in itself are still splitting apart, but very slowly. The reason they split up was because tectonic plate movements.
An alloy of sodium and potassium is used as a coolant due to its
A.high thermal conductivity
B.physical state
C.high reactivity
D.all except c
Answer:
A
Explanation:
Because It's dense meaning that it doesn't burn
Explanation:
https://youtu.be/f_kgUUaMZlw