Answer:
Cl (Chlorine) has higher electron affinity or electron gain enthalpy as compared to F(Fluorine) as though F is most electronegative in the whole periodic table and so has the highest tendency to attract electrons
Explanation:
The periodic table is organized into groups and periods of elements. The characteristics of a certain group of elements are listed below. Which of these elements is in this group?
Characteristics of a group of elements
•is shiny
•is solid at room temperature
•has atoms with two valence electrons
A-silicone
B-lithium
C-strontium
D-aluminum
Answer:
C:Strontium
Explanation:
g Mark the statements as True or False. (1) When mixing, NaOH(aq) and NH4NO3 (aq) can not complete their reaction because there is no precipitate formation. ______ (2) To quantify unknown soluble chloride, we could use either gravimetry or volumetric analysis based on AgCl(ppt) formation. _____
Answer:
Follows are the solution to this question
In point 1, the answer is "false".
In point 2, the answer is "True".
Explanation:
In point 1:
It's not a response to rain, however, the reaction is also another way.
[tex]NaOH + NH_4NO_3 \longrightarrow NaNO_3 + NH_3 +H_2O \\\\Na^{+} + OH^{-} + NH_4+ +NO_3^{-} \longrightarrow Na^{+} + NO_3^{-} +NH_3 +H_2O \\\\OH^{-} + NH_4^{+} \longrightarrow NH_3 +H_2O[/tex]
In point 2:
They either use the magnetic resonance or gravimetric analytical method with unknown chloride calculation. They utilize plaster to catalyze chloride through aqueous or salty water. It's also called the response to precipitation.
[tex]Ag+(aq) + Cl - (aq) \longrightarrow AgCl(s)[/tex]
How many Sr2+ ions are present in 0.314 moles of Sr3(PO4)2?
Answer:
5.67x10²³ ions
Explanation:
By looking at the molecular formula, we can tell that there are three Sr²⁺ ions per Sr₃(PO₄)₂ molecule.
We convert Sr₃(PO₄)₂ moles into Sr₃(PO₄)₂ molecules by using Avogadro's number:
0.314 moles * 6.023x10²³ = 1.89x10²³ moleculesFinally we multiply that number by 3 in order to convert Sr₃(PO₄)₂ molecules to Sr²⁺ ions:
1.89x10²³ * 3 = 5.67x10²³ ions.what affect does temputure has on solid
Answer:
As the temperature of a solid, liquid or gas increases, the particles move more rapidly. As the temperature falls, the particles slow down. If a liquid is cooled sufficiently, it forms a solid. If a liquid is heated sufficiently, it forms a gas.
What is the mass of 0.25 mole of sodium?
all energy travels in waves true or false
Which of the following will increase the volume of a gas
Answer:
The volume of a gas is directly proportional to its temperature. Avagadro's Law- Gives the relationship between volume and amount of gas in moles when pressure and temperature are held constant. If the amount of gas in a container is increased, the volume increases.
Answer:
Decreasing the pressure applied to the gas.
Explanation:
Ap3x
1. How many energy sublevels are in the second principal energy level? 4 3 1 2
Answer:
2
Explanation:
All the following are physical properties of metals EXCEPT
a. malleability
c. conductivity
b. brittleness
d. ductility
Explanation:I think it's option b) brittleness
I hope this might help u
HELP
True or false
a) All viruses are latent.
b) All viruses contain DNA.
c) Viruses are considered living things.
d) Viruses do not have organelles.
Answer: i think it c
Explanation:
What is the formula mass for (NH4)2C2O4
Answer:
124.1 g/mol
Explanation:
just facts
Answer:
124.1 g/mol
Explanation:
To calculate formula mass, multiply the subscript of each element in the formula by the element's atomic weight (relative atomic mass) found on the periodic table. The unit for formula mass is either u or Da (Daltons).
what element has the basis of life
What element has 2 occupied principals of energy levels
PLEASE HELP ME! I am confused on this.
Answer:
Mohammed has less kinetic energy
Explanation:
m=Kg
V= m/s
KE= kinetic energy = J
the way you work out the answer is:
KE = 1/2 × m × v squared
A scientist who collects and analyzes DNA from a crime scene is a
Answer:
forensic scientist
Explanation:
forensic science is the discipline in which professionals use scientific means to analyze physical crime evidence. this evidence is then presented in court in order to help determine the innocence or guilt of a specific suspect.
Answer:
Its a forensic scientist :D
Explanation:
I took a test and got it wrong but it showed the right answer and its a forensic scientist
(don't ask how i got it wrong i was rushing!!)
20 POINTS
What is true about the Sun, light bulbs, and flames?
AThey are all made of fire.
BThey are all made by people.
CThey are all found in nature.
DThey are all sources of light energy.
Answer:
D
Explanation:
Light blubs are not made of fire.
The sun wasnt made by humans.
You cant find Light bulbs in nature.
Meaning it is D.
Calculate the volume of a liquid with a density of 5.45 g/mL and a mass of 65 g.
Answer:
The answer is 11.93 mLExplanation:
The volume of a substance when given the density and mass can be found by using the formula
[tex]volume = \frac{mass}{density} \\ [/tex]
From the question we have
[tex]volume = \frac{65}{5.45} \\ = 11.926605...[/tex]
We have the final answer as
11.93 mLHope this helps you
If the human body contains 5.4 L of blood, how many grams of glucose are present in the blood if the concentration is 130. mg/100. mL?
Answer:
good luck
Explanation:
Mixtures that have the same composition throughout are ________.
Zn + (
)HCl → (
)ZnCl2 + (
)H2
If the hydronium ion concentration of a substance is 1.0 X 10-6 M, what would be the pH of that substance??
Show/Describe your work.
Salt is water solution is made salt or water
Answer:
Both
Explanation:
because salt water comes from water mixing with salt
If a catalyst lowers the activation energy, what raises the activation energy?
heat
a reaction
another catalyst
an inhibitor
Answer:
an inhibitor
Explanation:
An inhibitor will raise the activation energy of a chemical system because it works in the opposite way a catalyst works.
A catalyst is any chemical substance the increases the rate of chemical reaction. They simply bind the substrate and bring them into reaction instead of passing through the high energy peaks.
An inhibitor works in an opposite way. They raise the activation energy of a reaction and prevents a reaction from taking place.
Answer:
An inhibitor
Explanation:
i did this on edge2020
have a good day
How do molecules of air in direct contact with Earth's solid, warm surface absorb heat energy?
A conduction
B condensation
C. convection
D. diffusion
Answer:
actually its c convection.
Explanation:
my teacher asked the same question but with diffrent oppstions.
and diffusion is DEFINATALY not the answer. its convection.
Molecules of air in direct contact with Earth's solid, warm surface absorb heat energy with conduction.
What is conduction ?The process by which heat is transmitted from an object's hotter end to its cooler end is known as conduction. The term "thermal conductivity" refers to an object's capacity to transfer heat, and it is represented by the letter k. Along a temperature gradient, heat flows naturally.
When two materials or objects come into direct touch with one another, conduction takes place. More quickly than in a cooler item, the molecules in a warmer one vibrate. The slower molecules clash with the faster vibrating molecules.
Ground-level heat is radiated into the lower atmosphere. In conduction, heat is transferred directly from hotter regions to cooler ones. Warmer molecules bounce vigorously and clash with molecules close by, exchanging energy.
Thus, option A is correct.
To learn more about Conduction follow the link;
https://brainly.com/question/12136944
#SPJ2
Which energy transformation produces electricity and is least likely to negatively impact the environment?
Generating electricity from a natural gas-fired power plant
Generating electricity from a natural gas-fired power plant
Generating electricity from a coal-fired power plant
Generating electricity from a coal-fired power plant
Generating electricity from a nuclear power plant
Generating electricity from a nuclear power plant
Generating electricity from a solar panel system
Generating electricity from a solar panel system
electricity from solar panels
Explanation:
All other options produce something after or during the time electricity is made. That something is gas. Not solar
how do organisms
can compete for abiotic
factors in an ecosystem.
Answer:
An organism's niche includes food, shelter, its predators, the temperature, the amount of moisture the organism needs to survive, etc. When two or more individuals or populations try to use the same limited resources such as food, water, shelter, space, or sunlight, it is called competition.
Unless otherwise instructed, you may use the periodic table in the Chemistry: Problems and Solutions book for this question.
Which explanation accounts for why carbon monoxide is not a polar molecule?
The electronegativity differences between carbon and oxygen are not very large.
Carbon and oxygen do not form ions.
Carbon is a metal, and oxygen is a nonmetal.
There are no hydrogen atoms in the molecule.
The statement 'the electronegativity differences between carbon and oxygen are not very large' accounts for why carbon monoxide is not a polar molecule.
What is a polar molecule?A polar molecule is a molecule that has a positive pole and a negative pole as a consequence of electronegativity differences.
These differences in electronegativity are due to distinct levels in which atoms attract electrons.
In conclusion, the statement 'the electronegativity differences between carbon and oxygen are not very large' accounts for why carbon monoxide is not a polar molecule.
Learn more about polar molecules here:
https://brainly.com/question/1433127
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a goup of cells that work together to perform a specific function.
Answer:
Cell Differentiation and Tissue.
Explanation:
tissues are organized communities of cells that work together to carry out a specific function.
9.Ammonium nitrate (NH4NO3) can decompose to form gaseous water, nitrogen, and oxygen. What is the sum of the coefficients in the balanced chemical equation
Answer:
the sum of the coefficients in the balanced chemical equation is 9
Explanation:
The computation of the sum of the coefficients in the balanced chemical equation is shown below:
here is the balanced chemical equation
[tex]2NH_4NO_3 \rightarrow 4H_2O)g) + 2N_2(g) + 1O_2(g)[/tex]
Now the sum is
= 2 + 4 + 2 + 1
= 9
hence, the sum of the coefficients in the balanced chemical equation is 9
and, the same is to be considered
What is the Atomic number of 12
Answer:
atomic number of 12 is MG
Explanation:
Magnesium