what mass of sodium chloride is produced when chlorine gas reacts with 0.29 grams of sodium iodide? working on stoichiometry and need help!
Answers
Nal = 149.9 g/mol.
NaCI = 58.5 g/mol
2 mol Nal makes 2 mol NaCI
0.29 g Nal x ( 1 mol / 149.9 g) = 0.0019 mol NaCI
00.19 mol NaCI x ( 58.5 g / 1 mol ) 0.11 g NaCI ( 2 sig figs)
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Suppose you had 100 grams of water what is the molar mass of H2O
.Element Z is a neutral element and has 39 protons. What element is it and how many electrons does it have? (Use the periodic table)Platinum – 78Yttrium – 39Argon – 18There is not enough information given to determine.
What is the mass of an electron?A. Electrons do not have mass. B. -1.0 amu C. 0.0005 amu
A chemical change is a change in the ______ of a substance.a. composition c. temperature b. appearance d. melting point
Answers
Answer:
The atom's energy will decrease by 8.99 x 10⁻²⁶ J.
Explanation:
The atom's energy will go down by an amount equal to the energy of the photon that it emits.
The energy E of a photon is inversely proportional to its wavelength according to the following equation, where h is Planck's constant and c is the speed of light:
E = (hc)/λ
We substitute the values into the equation to solve for the energy:
E = (hc)/λ = (6.626 x 10⁻³⁴ J·s)(2.998 x 10⁸ m·s⁻¹) / 2.21 m
E = 8.99 x 10 ⁻²⁶ J
Thus, the atom's energy will decrease by 8.99 x 10⁻²⁶ J.
f = v/wavelength
f = 3x10^8 / 2.21 = 1.357x10^8
E = 8.99x10^-26 joules i hope i helped u
Which is a base-conjugate acid pair?
NH3 and CIO3-
NH3 and NH4+
HCIO3 and NH3
HCIO3 and NH4+
Answers
The example of base-conjugate acid pair is B. NH3 and NH4+.
What is a base-conjugate acid pair?
A base-conjugate acid pair simply means a pair that consist of two substances that only differ by the presence of a proton (H+).
In this case, the example of base-conjugate acid pair is NH3 and NH4+ because bNH4+ is the conjugate acid of the base NH3.
Learn more about acid on:
Answer:
NH3 and NH4+
Explanation:
NH4+ is the conjugate acid of the base NH3.
Oxidation
Glycolysis
Hydrolysis
Answers
Glycolysis is a process that helps fuel your metabolism. It is apart of cellular respiration the process that helps produce ATP.
Explanation:
Glycolysis is the metabolic process that assists as the grounds for both aerobic and anaerobic cellular respiration. In glycolysis, glucose is transformed into pyruvate. Glucose is a six-membered circle molecule found in the blood and is regularly a result of the breakdown of carbohydrates into sugar.
Glycolysis is the process that helps fuel your metabolism. It generates energy in the form of ATP through the breakdown of glucose.
The metabolic process that helps fuel your body is known as Glycolysis. This is a series of reactions that takes place in the cell's cytoplasm, where glucose (a simple sugar) is broken down into two molecules of pyruvate. This process generates energy which gets stored in the form of ATP (adenosine triphosphate), a molecule that allows the body to perform various functions like muscle contraction, nerve impulse propagation, and chemical synthesis, etc. Hence, glycolysis supports the metabolism by providing necessary energy to the body.
Learn more about Glycolysis here:
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B) 2NaCl + F2 → 2NaF + Cl2
C) 2AlBr3 + 3K2SO4 → 6KBr + Al2(SO4)3
D) 2K + MgBr2 → 2KBr + Mg
Answers
Answer:
The correct answer is option C.
Explanation:
Double displacement reaction is defined as the reaction in which exchange of ions takes place to give a product.
Single displacement reaction is defined as the reaction in which more reactive element displaces a less reactive element from its chemical reaction.
From all the given options the reaction which is classified as Double displacement reaction is :
Where as other reactions are the examples of Single displacement reaction.
Answers
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This triangular body of water is called a delta. It is shaped like the Greek letter delta and was coined by Herodotus, the father of history who lived from 484 to 425 BC by seeing the deltoid shape at the mouth of the Nile.
Deltas occur throughout the world except at the poles. They all have three things in common, namely:
1. The presence of a large catchment basin. The top 30 river deltas all have catchment basins.
2. They all are at the mouth of large river systems that carry large quantities of clastic sediments (soils or portions of rocks that have been moved by water from where they formed)
3. They are not found near geologically active coastlines. They take a long time to develop so they are very rarely situated on tectonically active coast.