How to convert the mass of a substance to the number of moles of a substance, and moles to mass
Answer:
Explanation:
To convert the mass to moles, divide the mass by the atomic weight of the element or compound.
To convert back to mass from the moles, multiply the moles by the atomic weight of the element or compound
PLEASE ANSWER URGENT Write the electron configurations for the following three atoms.
1. Nitrogen
2. Chlorine
3. potassium
Answer:
[He] 2s2 2p3
[Ne] 3s² 3p⁵
[Ar] 4s¹
In a series circuit with 5 light bulbs if the battery has a current of 10 A how much current is in the first light bulb
Answer:
10A because they are series
Compare and contrast the molecular activity of solids, liquids, and gases.
Answer:
The molecules in a solid are close together and they vibrate in place. The molecules in a liquid move quickly and farther apart from eachother. The particles in a gas move freely at high speeds and slide past eachother.
Your shopping cart has a mass of 65 kilograms. In order to accelerate the shopping cart down an aisle at 0.3 m/sec2, what force would you need to use or apply to the cart?
Answer:
19.5 kgm/s²
Explanation:
19.5 kgm/s²
Which molecule is Polar
HF
SiBr4
CO2
CH20
Answer:
Polar molecules have a non-zero net dipole moment. Both CO2 and H2O have two polar bonds. However the dipoles in the linear CO2 molecule cancel each other out, meaning that the CO2 molecule is non-polar. The polar bonds in the bent H2O molecule result in a net dipole moment, so H2O is polar.
Explanation:
Why do surface waves break along the shore?
Answer:
because the global sea level rises while the poles temperature increases
Explanation:
I NEED HELP :)
A train travels 76 miles in 1 7/12 hours. What is its average speed in miles per hour?
Answer:
48 mph
Explanation:
total time= 19/12 hr
distence- 76 miles
speed- D/T=76/19/12
which is 48mph
if my answer helps please mark as brainliest.
Answer:
pretty sure its average speed in miles per hour is 48
Explanation:
I just took 76 and divided it by 1 7/12 and got 48
What is specific heat?
Specific heat is the amount, like the other brainly answer said, of heat per unit mass required.
Why does lowering the pressure cause a liquid to boil?
A. It becomes easier for molecules to escape.
B. It pushes molecules out of the liquid.
C. It causes the temperature to rise.
D. It changes the volume of the liquid.
Lowering the pressure in a container will cause the liquid in the container to boil faster because it becomes easier for the molecules to escape.
What causes boiling?Boiling happens when the vapor pressure of a liquid equals the atmospheric pressure.
By lowering the atmospheric pressure, the vapor pressure of a liquid takes a lower time to equal the atmospheric pressure.
Thus, it becomes easier for the molecules of the liquid to escape from each other.
More on boiling and pressure can be found here: https://brainly.com/question/2510654
Earth is the only planet to have ___ on it's surface?
Answer:
consistent
(stable bodies of liquid water)
Which group in the food chain uses the energy of the sun to create its own food A consumers B predators C producers D prey
Answer:
C producers
Explanation:
All food chains start with energy from the sun. This energy is captured by plants. Thus the living part of a food chain always starts with plant life and ends with an animal. Plants are called producers because they are able to use light energy from the sun to produce food (sugar) from carbon dioxide and water.
I WILL GIVE BRAINLIEST !!!
Answer:
The purple are molarity and the green are molality
Explanation:
I think dont kill me if thats wrong
About how old is the Sun?
1.2 billion years
4.6 billion years
6.4 billion years
8.2 billion years
Answer:
B : 4.6 billion years
Credits go to the person above me.
;)
Explanation:
EDGE 2021
The sun is about 4.6 billion years old. Therefore, option (B) is correct.
What is the sun made of?The Sun is made primarily of the elements hydrogen and helium. They account for 74.9% and 23.8% mass of the Sun in the photosphere. All heavier elements, called metals account for less than 2% of the mass, with oxygen (<1%), carbon (0.3%), neon (0.2%), and iron (0.2%) being the most abundant.
The hydrogen and helium in the Sun would have been produced by Big Bang nucleosynthesis and the heavier elements were produced by former generations of stars before the Sun was formed.
The amount of helium and its location within the Sun has gradually changed over the past 4.6 billion years. The proportion of helium has raised from about 24% to 60% due to fusion, and some of the He and heavy elements have settled from the photosphere toward the center due to gravity.
Therefore, the age of the sun is about 4.6 billion years.
Learn more about Sun, here:
https://brainly.com/question/2526507
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Question 2 of 10
Who developed the philosophical idea of the atom?
A. Boyle
B. Dalton
C. Aristotle
D. Democritus
SUBMIT
Answer:
The answer is D. Democritus
Explanation:
I did my research and it was Democritus' idea of the atom.
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1. Fungal cells contain nuclei, which makes them classified as:
O eukaryotic
O saprophytic
O prokaryotic
O parasitic
Answer:
O eukaryotic
they have nucleus
Determine the empirical and molecular formulas for a compound that has 10 pa a molar mass of 300 g/mol, and is 60.0% C, 12% H, and 28% N by composition.
Explanation:
the empirical formula is correct but I didn't got the question properly
If a sample of 0.500 moles of hydrogen sulfide (H2S) was reacted with excess concentrated sulfuric acid, how many moles of sulfur dioxide (SO2) would be produced?
Answer:
2.00
Explanation:
They said that was the answer.
If a sample of 0.500 moles of hydrogen sulfide H₂S was reacted with excess concentrated sulfuric acid then, number of moles of sulfur dioxide SO₂ would be produced are 2.00.
What are moles in gases?It is the ratio of mass of element in grams of a given compound and the molar mass of the element. In order to have balanced equation, we have to find the correct number of mole of SO₂. The reaction is
H₂S(g) + 3H₂SO₄ ⇄ 4H₂O(l) + 4SO₂
1 mole of H₂S react with excess of H₂SO₄ to give 4 moles of SO₂.
0.5 mole of H₂S react with excess of H₂SO₄ to give 4 x 0.5 =2.00 moles of SO₂.
Thus, 2 moles of sulfur dioxide SO₂ would be produced.
Learn more about moles of gases.
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i need help !! pls answer this is due in like 30 minutes!!
20000 nanograms sorry i cant answer the second question
What charge would you expect for an formed by S?
O-1
O-1
a 2
0-2
Look at picture
ASAP please will mark as brainlist don’t got much time
Answer:
in this the correct answer is option 2.
2. If you have 8.08 g of hydrogen, how many grams of ammonia will your produce?
answer: Stoichiometry is a big word for a process that chemist’s use to calculate
amounts in reactions. It makes use of the coefficient ratio set up by balanced
reaction equations to make connections between the reactants and products
in reactions.
Stoichiometry calculates the quantities of reactants and products in a
chemical reaction. The equation must be balanced!
Questions that deal with amounts in reactions are examples of reaction
stoichiometry. We already have the tools necessary to solve this question.
We just need to learn a new way to apply skills such as writing chemical
formulas, calculating formula masses, and converting from mass to moles,
particles to moles, and volume of gases to moles.
Mole to Mole Conversions- you must have the Mole Ratio.
Illustration:
Let’s use an analogy that we can understand to begin to understand the process.
The KEY to any mole conversion is the ratio of coefficients in the reaction
equation. Say I want to make a bacon double cheeseburger. Let’s get our recipe
together.
1 hamburger bun + 2 hamburger patties + 2 slices of cheese + 4 strips of bacon →
1 bacon double cheeseburger
Based on this recipe:
1) If I have five bacon double cheeseburgers:
a. How many hamburger buns did you use? → 5 hamburger bun
b. How many hamburger patties did you use? → 10 hamburger patties
c. How many slices of cheese did you use? → 10 slices of cheese
d. How many strips of bacon did you use? → 20 strips of bacon
2) How many bacon double cheeseburgers can you make if you start with:
a. 2 buns, 4 patties, 4 slices of cheese, 8 strips of bacon
2 bacon double cheese burgers
b. 1 dozen buns, 2 dozen patties, 2 dozen slices of cheese, 4 dozen strips of bacon
1 dozen bacon double cheese burgers
6.
When an oxygen atom forms its most common ion, it
a) gains one electron.
b) gains two electrons.
c) loses one electron.
d) loses two electrons.
Answer:
gains two electron!
Explanation:
When a barium atom forms its most common ion, it gains two electron!
Should the organism be considered a life-form?
Answer:
It is a synonym for "life form". Organisms are classified by taxonomy into groups such as multicellular animals, plants, and fungi; or unicellular microorganisms such as protists, bacteria, and archaea. ... Fungi, animals and plants are examples of kingdoms of organisms within the eukaryotes.
So yes, it should
Explanation:
10. What two effects can the wrong pH have on an enzyme?
Answer:
A pH environment has a significant effect on an enzymes. It can affect the intramolecular forces and change the enzyme's shape -- potentially to the point where it is rendered ineffective. With these effects in mind, typical enzymes have a pH range in which they perform optimally.
Explanation:
I hope this helps you.
Help due today! No random answered I’ll report you!, answer in full sentences!:)
what is the compound name of MgCl2
Answer:
Magnesium chloride
A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is its density?
Answer: d=2.70 g/mL
I think
HELPPPPPPPP I NEED TO PASSSSSS
Answer:
They have the exact same name at the first but the yacca plant must be eaten by the yacca moth because if the animal doesn't eat it will die of hunger
Answer:
its B
Explanation:
The relationship between yucca moths and yucca plants is an example of obligate mutualism. Many species of yucca plant can be pollinated by only one species of yucca moth, while those yucca moths use the yucca flowers as a safe space to lay their eggs.
this info can be found on "https://ir.lib.uwo.ca/wurjhns/vol8/iss1/10/#:~:text=The%20relationship%20between%20yucca%20moths,space%20to%20lay%20their%20eggs."
What is "the cloud"?
A. The delivery of services and storage of data on multiple servers
using the Internet
B. A computer that provides services to and stores data but cannot
be accessed by other computers
O c. A system of devices that can communicate with one another
through analog signals sent through wires
D. A way to send analog data from one specific computer to another
computer that stores it as digital data
A
Explanation:
no proof just to know I'm internet gal
What mass of the protein gelatin is needed to make 0.5 L of a 3 g/L gelatin solution? Show your work.
Answer:
m = 1.5 gram
Explanation:
Given that,
Density of protein gelatin, d = 3 g/L
The volume of protein gelatin, V = 0.5 L
We need to find the mass of the protein gelatin. The density of an object is given by :
d = m/V
Where
m is mass
[tex]m=d\times V\\\\m=3\ g/L\times 0.5\ L\\\\m=1.5\ g[/tex]
So, the required mass is 1.5 gram.