Answer:
2.29 moles of SF₆ contain 334.5 g SF₆
Explanation:
Given data:
Mass of SF₆ = ?
Number of moles of SF₆ = 2.29 mol
Solution:
Formula:
Mass = number of moles × molar mass
Molar mass of SF₆ = 32.065 + (19)×6
Molar mass of SF₆ = 146.06 g/mol
Now we will put the values in formula.
Mass = 2.29 mol × 146.06 g/mol
Mass = 334.5 g
2.29 moles of SF₆ contain 334.5 g SF₆ .
does the density of a liquid depend on its volume
Answer:
No
Explanation:
Increasing the level of component measured doesn't really significantly affect density, with exception of weight and volume. the above serves to make density an effective property in the identification of several materials.
Look at the periodic table. Why can’t you find water (H2O), table salt (NaCl), or rust (Fe2O3) on the periodic table?
Explanation:
The periodic table is a list of elements which are arranged by their atomic number.
Water, table salt and rust are not elements. They are compounds which contains more than one element in them. For such compounds, we cannot use the atomic number to easily categorize them.
This is why the periodic table shows the symbol of each individual element. And the arrangement is based on the atomic number.Isotopes,ions,and atoms worksheet 2 answer key
Explanation:
Isotopes are defined as atoms of the same element but differ in the number of neutrons in their nucleus where a number of protons and electrons remain the same.Ions are defined as chemical species of an atom with an electrical charge.IO with a positive charge are called cations, and ions with a negative charge are called anions.Atom has three subatomic particles: protons, electrons, neutronsAtomic number (Z)= Number of protonsNumber proton = Number of electrons (isoelectric neutral atom)Atomic mass (A)= Number of protons + Number of neutronsThe chemical symbol of an element X is written as:[tex]^A_ZX^C[/tex]
Where : Charge on ion = C
Learn more about atomic mass and the atomic number here:
brainly.com/question/11673503?referrer=searchResults
brainly.com/question/2099804?referrer=searchResults
What mass
(in kg) does 5.84 moles of titanium (Ti) have?
Answer:
so for every 1 kg it's 10 to the three. So we multiply 5.84 times 47.867 divided by 10 to the three, which is just 1000. Doing that should give you 0.280 kg of titanium.
Explanation:
The mass of 5.84 moles of titanium (Ti) is 0.279 kg.
What are moles?Moles can be defined as the amount of substances present in a system that contain the same number of entities as the number of atoms in 12g of carbon 12.
Given moles of Titanium = 5.84 moles
Molar mass of Titanium = 47.867 g
Mass = Moles x Molar mass
Mass of Titanium = 5.84 x 47.867
= 279.54g
To convert in kgs = 279.54 / 1000
= 0.279kg
Hence, the mass of 5.84 moles of titanium (Ti) is 0.279 kg.
To learn more about moles here
https://brainly.com/question/15209553
#SPJ2
CAN SOMEONE PLEASE HELP ME WITH MY CHEMISTRY ASSIGNMENT.
Answer:
yes its correct
Explanation:
Starting with O; in inhaled air, describe in your own words the sequence of gas
movements from the inhalation of oxygen to the exhalation of carbon dioxide.
Answer:
We inhale oxygen through our nasal pasage and mouth, it passes epiglottis which leads air down to the lungs. It travels down the windpipe into right and left bronchi. Around alveoli (small air filled sacks) tiny capillaries bring blood to exchange gases. Oxygen moves from the lungs into the bloodstream and carbon dioxide moves from the bloodstream into the lungs where we exhale back from our mouth
where is ultraviolet waves located on the electromagnetic spectrum in relation to other kinds of radiation
What is the formula to describe the speed of light?
Answer:
Explanation:
Refer the image
What is a job of the skeletal system? 1. exchange oxygen and carbon dioxide 2. deliver nutrients to the body 3. remove waste 4. protect organs
Answer:
4 protect organs
Explanation:
this would be in biology category btw
Answer:
4.protect organs
Explanation:
your ribs protect your heart and lungs
ILL MARK BRAILIEST PLEASE HELP
During the Industrial Revolution, society shifted to fossil fuels. True or False
The answer is true because during the industrial revolution is when factories became ran buy machines and used fossil fuels to run.
____ Are subatomic particles found in the nucleus and carry positive electrical charge.
A. Atoms
B. Electrons
C. Protons
D. Neutrons
E. Electron Shell
Answer:
C
Explanation:
there's no need to rush just calm down baby!!!
An important rule for students to know when heating a test tube is to
A) place a cork in the mouth of the test tube.
B) point the mouth of the test tube away from others.
C) hold the test tube loosely with the fingertips.
D) shake the test tube forcefully to keep contents mixed.
Answer:
B .point the test tube away from others
Explanation:
Well in science your supposed to keep it away from you and others so the aroma doesnt harm your nose or anyone eles´s nose
Hoped I helped -\
Sleepy~
7. Who was the first explorer from France to reach North America? A. Giovanni da Verrazano C. Louis Joliet B. Jacques Cartier D. Samuel de Champlain
What is the mass in grams of 5.9 mol C8H 18
Answer:
Explanation:
The molar mass of
C
8
H
18
=
8
⋅
12
+
18
⋅
1
=
114g mol
−
1
So the mass of
5.90 mole C
8
H
18
will be:
5.90
mol C
8
H
18
×
114
g C
8
H
18
1
mol C
8
H
18
=
673 g C
8
H
18
rounded to three significant figures
-If the pH of the blood is lower than normal, explain how the kidneys attempt to raise
the pH of the blood.
For each obstacle, select the best solution. failing the classes needed to graduate from college: not being able to save enough money to pay for medical school: failing the state licensing exam:
Answer:
(A) getting study help, and retaking classes or exams
(A) applying for a loan
(C) getting study help, and retaking the exam
Explanation:
Lonely lonly
What can I do?????
Answer:
i am
Explanation:
im lonly
Which of these best describes the basis on which new scientific ideas are accepted or rejected?
A. Moral and ethical beliefs
B. Popular support
C. Carefully collected and analyzed data
D. Historical support
:I believe it’s C but not sure , lmk
Moral and ethical beliefs best describes the basis on which new scientific ideas are accepted or rejected.
what is scientific idea ?A scientific experiment is an investigation involves in the process of manipulating an independent variable in order to be able to determine the dependent variable means the effect.
The experiment can be used by scientists to demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.
A scientific method is typically use the experimental and mathematical techniques which comprises a series of steps such as systematic observation, measurement, and analysis to formulate, test and modify a hypothesis.
A hypothesis is considered to be tentative and it can be defined as a testable explanation for an observation
For more details regarding scientific idea , visit
https://brainly.com/question/16035036
#SPJ5
Classification of matter concept map
Answer:
The map is down below.
Explanation:
An atom of sodium and an atom of flourine will combine to form sodium flouride. Which of the following correctly describes sodium flouride?
Group of answer choices
A. an element
B. energy
C. an atom
Answer:
A compound
Explanation:
A compound is formed when two elements combine together. Both sodium and fluorine are elements. These elements combine via the process of chemical bonding.
In this case, an ionic bond is formed between sodium and fluorine, this leads to the emergence of the compound sodium chloride, hence the answer above.
A graduated cylinder( approximate as a regular cylinder) has a radius of 1. 045 cm and a high of 30.48 cm. what is the volume of the cylinder centimeter 3( use 3.141 for ) round to the nearest tenths
Given parameters:
Radius of cylinder = 1.045cm
Height of cylinder = 30.48cm
Unknown:
Volume of the cylinder = ?
A cylinder is a solid body. The volume is usually calculated using the mathematical expression below;
Volume of cylinder = π r² h
π = 3.141
r = radius of cylinder
h = height of cylinder
Now, input the parameters and solve;
Volume of cylinder = 3.141 x 1.045² x 30.48
= 104.547cm³
To the nearest tenth gives 104.5cm³
The volume of the cylinder is 104.5cm³
During which method of separation is one of the components of the mixture lost
What type of mixture can be separated by distillation?
Distillation. Distillation is an effective method to separate mixtures comprised of two or more pure liquids. Distillation is a purification process where the components of a liquid mixture are vaporized and then condensed and isolated.
Answer:
D. evaporation
Explanation:
I did the test on edge :)
Do Neutros and Protons affect the element?
Answer:
Protons identify the element and add to the mass of the element. The mass of a proton is about 1. Neutrons keep the nucleus (the place where neutrons and protons are) together. they also add to the mass The mass of a neutron is also about 1
Explanation:
Solid,liquid,gas how do they differ in how easily they change shape
Answer:Solid,Liquid,Gas differ from each other by the following ways:-
Solid:It have defined shape.
Liquid:They have an indefinite shape.
Gas:They have no shape:
How many grams are in 0.0664 mol of sodium
Answer:
1.5272 grams
Explanation:
We know that the mass of a given amount of an element is number of moles multiplied by the molar mass of the element
Molar mass of Sodium = 23 g/mol
Mass of sodium = Moles of Sodium * Molar mass of sodium
Mass of Sodium = 0.0664 * 23
Mass of Sodium in 0.0664 moles = 1.5272 grams
The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine:
Step 1: Cl2(g)⇌2Cl(g)(fast)
Step 2: Cl(g)+CHCl3(g)→HCl(g)+CCl3(g)(slow)
Step 3: Cl(g)+CCl3(g)→CCl4(fast)
Part A
What is the overall reaction?
Express your answer as a chemical equation. Identify all of the phases in your answer.
Part B
What are the intermediates in the mechanism?
Express your answers as a chemical expression. If there is more then one answer, separate them by commas. Identify all of the phases in your answer.
Part G
What is the rate law predicted by this mechanism? (Hint: The overall reaction order is not an integer.)
Use a for [Cl2], b for [Cl], c for [CHCl3], d for [HCl], e for [CCl3] and k for the rate constant.
Answer:
Overall reaction equation is:
Cl2(g) + CHCl3(g) --> HCl(g) + CCl4(g)
The intermediates are Cl(g), CCl3(g).
Rate law= ka^1/2 c
Explanation:
This reaction is a non elementary reaction. A non elementary reaction is one that does not take place in a single reactive encounter. In other words, the reaction is comprised of many steps.
The overall reaction equation is the sum of all the reaction steps after all intermediates have been cancelled out. The rate law is obtained from the slowest step in the reaction sequence.
How many electrons are in O2-?
Answer:
There will be 16 electrons in O2-
Please help also could u put explanation
Answer:
11.6 N/KgExplanation:
[tex]a = \frac{force}{mass} = \frac{3750}{150} = 11.66 [/tex]
The unit of the answer is N/KgFinish the statement: as wavelength
______, then energy______?
Options
Increases,decreases
Increases,increases
Decreases,decreases
There is no relationship between wavelength and energy
Thank You for helping
Answer:
increase and then decrease
Explanation:
as a wavelength increases in size, its frequency and energy (E) decrease. From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength gets longer. There are two basic types of waves: mechanical and electromagnetic
HOPE IT WORKS :)
Which phase change is exothermic? A) solid to liquid B) solid to gas C) liquid to solid D) liquid to gas
the change of phase is called liquid to gas
Answer:
It's liquid to solid.
Explanation:
Solid to liquid is becoming less compact, solid to gas is less compact, liquid to gas is less compact, but liquid to solid is more compact.
