Answer:
200 g NaOH
General Formulas and Concepts:
Reading a Periodic TableDimensional AnalysisExplanation:
Step 1: Define
5.0 mol NaOH
Step 2: Define conversions
Molar Mass of Na - 22.99 g/mol
Molar Mass of O - 16.00 g/mol
Molar Mass of H - 1.01 g/mol
Molar Mass of NaOH - 22.99 + 16.00 + 1.01 = 40 g/mol
Step 3: Convert using DA
[tex]5.0 \ mol \ NaOH(\frac{40 \ g \ NaOH}{1 \ mol \ NaOH} )[/tex] = 200 g NaOH
Step 4: Check
We are given 2 sig figs. Follow sig fig rules.
We only have 1 sig fig in 200. No need to round.
what is this equation? How do you use it in physical science waves
Answer:
hmm
Explanation:
let me think
Answer:
speed of sound, frequency and wavelength
which element in the alkali group will have the lowest first ionization energy?
Fluorine
Explanation:
F- has the lowest ionisation energy
Directions: Record the number of each atom in each molecule, then record the total number of atoms in the molecule.
Total number of atoms = 5
Further explanationThe formula of a compound shows the composition of the constituent elements
CaCO₃ is composed of 3 types of atoms, namely Ca, C and O
The amounts of each of these atoms in the compound CaCO₃:
Ca = 1 C = 1 O = 3Then total number of atoms :
[tex]\tt 1+1+3=5[/tex]
Please please please help!
Imagine you are a scientist who has just discovered a new element. The element has an atomic number of 113, and it has three elections in the outer energy level of each atom.
Which element would have properties most similar to the new element?
Group of answer choices
A. boron
B. carbon
C. hydrogen
D. beryllium
AND
What would you name this new element?
Answer:
A. is the correct answer because Boron has 3 electrons too,
All elements in Group 13 have three electrons in their outermost energy level. The two most popular elements in this group are Boron and Aluminum.
Which statement describes the blood type of a person with the alleles IAi?
It is type AB because I and i are codominant.
It is type AB because A and i are codominant.
It is type A because i is dominant and A is recessive.
It is type A because A is dominant and i is recessive.
Answer:
b
Explanation:
Answer:
The answer is B
Explanation:
Simple chemistry question please help. Look at image.
It's the last one. They all have the same number of electrons in their outer ring. They're also called valence electrons.
Hope this helped!
All mutations _____.
A sector of a circle has an area of 132m². if the angle of the sector is 105,°,calculate the radius of the circle
A quantity of gas under a pressure of 302kpa has a volume of 600cm3. The pressure is increased to 604kPa, while the temperature is kept constant. What is the new volume?
Answer:
V₂ = 300 cm³
Explanation:
Given data:
Initial pressure = 302 KPa
Initial volume = 600 cm³
Final pressure = 604 KPa
Final volume = ?
Solution:
The given problem will be solved through the Boly's law,
"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"
Mathematical expression:
P₁V₁ = P₂V₂
P₁ = Initial pressure
V₁ = initial volume
P₂ = final pressure
V₂ = final volume
Now we will put the values in formula,
P₁V₁ = P₂V₂
302 KPa × 600 cm³ = 604 KPa× V₂
V₂ = 181200 KPa.cm³ / 604 KPa
V₂ = 300 cm³
which of the following is the conjugate acid of CIO-
The conjugate acid of CIO⁻ is HClO. Hence, Option (D) is correct.
What is Conjugate Acid - Base concept ?A conjugate acid, within the Brønsted–Lowry acid–base theory, is a chemical compound formed when an acid donates a proton to a base.
In other words, it is a base with a hydrogen ion added to it, as in the reverse reaction it loses a hydrogen ion.
Therefore, The conjugate acid of CIO⁻ is HClO. Hence, Option (D) is correct.
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determine the mass of co2 prodeced by burning enough carbon to produce 5 x 10^2 kj
HELP FAST PLEASE!!
Producers are able to produce more of a good and to make more profit from __________. A. high prices B. limited demands C. high production costs D. government involvement
Answer:
the answer is A
Explanation:
i took the test on edg. sorry it is so late:(
Answer:A
Explanation:
Self-disclosure must be ____________.
a.
brief
b.
dishonest
c.
voluntary
d.
one-sided
Answer:a
Explanation:
Answer:
C
Explanation:
One must be willing to self disclose for them to self disclose.
The ___ blends into outer space.
Select one:
O a. troposphere
O b. stratosphere
O c. mesosphere
O d. exosphere
Answer:
Exosphere
Explanation:
it is found at the end reaching outer space
Given the following equation:
2KMnO4 → K2MnO4 + MnO2 + O2
How many grams of KMnO4 are required to produce
1.60 grams of O2?
g
Mass of KMnO4 required : 31.607 g
Further explanationThe reaction equation is the chemical formula of reagents and product substances
A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products
Reaction
2KMnO₄ → K₂MnO₄ + MnO₂ + O₂
mol of O₂ :
[tex]\tt \dfrac{1.6}{16}=0.1[/tex]
mol ratio KMnO₄ : O₂ = 2 : 1
mol of KMnO₄ :
[tex]\tt \dfrac{2}{1}\times 0.1=0.2[/tex]
mass of KMnO₄ :
MW KMnO₄ : 158,034 g/mol
[tex]\tt mass=0.2\times 158,034 =31.607~g[/tex]
What is differentiation
Answer:
The Definition of Differentiation
The derivative is the instantaneous rate of change of a function with respect to one of its variables. This is equivalent to finding the slope of the tangent line to the function at a point
Explanation:
Kinetic Theory: Tutorial
Activity
In this activity, open the Gas Properties simulation and follow the instructions provided with the questions below.
Part A
Using the controls along the right side of the simulation, under "Options," check the second box to select the temperature of the new particles
Then move the slider at the bottom to its lowest setting (50 K). Next, choose temperature as your constant parameter at the top. In the "Gas in
Chamber" box, add "light species" particles until about 200 are in the box. Finally, quickly add about 20 "heavy species" particles to the box.
Carefully observe how they spread across the chamber through time. What do you think causes the heavy particles to spread throughout the
chamber? What can you say about the direction of their movement?
Answer:
The heavy particles move across the chamber because of the diffusion property of gas particles. The particles move in straight lines and change directions only when they collide with other molecules or the walls of the chamber.
Explanation:
what happens to neutral sodium atoms when it reacts with the fluorine atom?
Answer:
losses a single valence electron to the fluorine atom, which has just enough space to accept it.
- Lumen Learning
Which of the following mixtures will show Tyndall effect?
Starch in water, Tincture of iodine, air, fog, sodium chloride in water.
Answer:
Explanation:
Milk and starch solution are example of colloidal solution and we know that Tyndall effect is shown by colloids.
who discovered the electron as a particle?
Answer: Thomson
Explanation: During the 1880s and '90s scientists searched cathode rays for the carrier of the electrical properties in matter. Their work culminated in the discovery by English physicist J.J. Thomson of the electron in 1897.
ROY G BIV arranges the colors of the rainbow *
In order of increasing energy
In order of increasing wavelength.
O In order of decreasing frequency.
Answer:
Wavelengths..
Explanation:
The colors we see always go from red, which is least refracted, through orange, yellow, green, blue, indigo and violet -- Roy G Biv. The blue, indigo and violet wavelengths are refracted the most as sunlight passes through raindrops.
Which properties are most common in nonmetals
According to the electronic configuration, properties which are most common in non-metals are high ionization energies, high electronegativity and poor conductors of heat and electricity.
What is electronic configuration?Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.
Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.
Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.
Learn more about electronic configuration,here:
https://brainly.com/question/13497372
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what polyatomic ion could form a neutral compund with the manganese
Answer:
The polyatomic cation that will react with MnO₄⁻ to form a neutral compound is NH₄⁺ (ammonium ion) to form NH₄MnO₄ (Ammonium permanganate).
The correct name for the molecule 14Cl7 is:
a. triiodide heptachloride
b. lodine chloride
c. tetraiodine heptachloride
d. quadiodine septachloride
i need help asap thank u
When light waves hit ice, most of them bounce off and radiate back into space. Because of this, ice is best described as which kind of surface? reflective absorbent dense rough
The bouncing back of light waves observed when light waves hit ice and most of them bounce off and radiate back into space is called reflection.
What are light waves?Light waves are a form of waves which produces visible sensitization of the eyes
Light waves have properties of waves such as:
reflection refraction diffractioninterference, etc.When light waves hit ice, most of them bounce off and radiate back into space.
This property of light waves is known as reflection.
Learn more about reflection of light waves at: https://brainly.com/question/1191238
When light waves hit ice, most of them bounce off and radiate back into space, hence, ice is best described as a reflective surface.
What is a Reflective surface?A reflective surface is one which can cause incident light to bounce back (reflection).
According to this question, when light waves hit ice, most of them bounce off and radiate back into space. This means that most of the incident light reflects off the ice surface.
Therefore, the ice surface is best described as a reflective surface.
Learn more about reflection at: https://brainly.com/question/8553652
Why does citric acid make water cold?
The reaction between citric acid and water is endothermic.
There are two types of reactions based on whether heat is evolved or absorbed by a reaction. Those two types are:
Endothermic reaction - in this reaction, heat is absorbed thereby making the reaction vessel to feel cold. Exothermic reaction- in this type of reaction, heat is evolved thereby making the reaction vessel to feel warm.The dissolution of citric acid in water is an endothermic reaction. The water feels cold because heat is absorbed from the surroundings as the reaction proceeds.
For a definition of endothermic and exothermic reactions see
https://brainly.com/question/20877696
Kendrick goes to his neighborhood gym to exercise. The process of cellular respiration makes it possible for him to run on the treadmill and to lift weights. What do Kendrick's cells do during cellular respiration?
A.His cells convert kinetic energy into chemical energy.
B.His cells use oxygen to break down food molecules to release energy.
C.His cells absorb light energy through the chlorophyll in their chloroplasts.
D.His cells combine water and carbon dioxide to produce oxygen and glucose.
Answer:
i think it is B
Explanation:
His cells use oxygen to break down food molecules to release energy.
Adaptations can only arise if
there is _______ within a species.
Answer:
Diversity?
Explanation:
Think thats bio
What are the coefficients when the equation below is balanced?
Answer:
1, 2, 2, 1
Explanation:
This is basically the equation we're trying to balance:
Cu + AgNO₃ → Ag + Cu(NO₃)₂
We start with Copper (Cu): There is 1 atom on the reactants'(left) side and 1 atom on the products'(right) side which means it's balanced
The second is Silver (Ag): There is 1 atom on the reactants' side and 1 atom on the products' side which means it's balanced
The third is Nitrogen (N) and there is 1 atom on the reactants' side and 2 atoms on the products' side. We balance it by multiplying the reactants' side by 2
Cu + 2AgNO₃ → Ag + Cu(NO₃)₂
Silver is now imbalanced so we multiply the silver atoms on the product's side by 2
Cu + 2AgNO₃ → 2Ag + Cu(NO₃)₂
If you count them now, the atoms on each side are the same number
1 Copper atom on each side
2 Silver atoms on each side
2 Nitrogen atoms on each side
6 Oxygen atoms on each side (2 sets of 3 oxygen atoms)
1Cu + 2AgNO₃ → 2Ag + 1Cu(NO₃)₂
