Answer:
15 meters = 590,551 inches
If a recycling center collects 3245 aluminum cans and there are 22 aluminum cans in 1 lb what volume in liters
The volume in liters of 3245 aluminum cans is 24.8 L.
A recycling center collects 3245 aluminum cans and there are 22 aluminum cans in 1 lb. The mass of 3245 aluminum cans is:
[tex]3245 cans \times \frac{1lb}{22cans} = 147.5 lb[/tex]
To convert mass to volume, we need the density of aluminum (5.95 lb/L). The volume corresponding to 147.5 lb of aluminum is:
[tex]147.5 lb \times \frac{1L}{5.95 lb} = 24.8 L[/tex]
The volume in liters of 3245 aluminum cans is 24.8 L.
You can learn more about density here: brainly.com/question/1841285
How many atoms? H_____, O_____, Fe_____ Total atoms? _____ 3Fe(oh)2
Answer:
H = 6
O = 6
Fe = 3
Total atoms = 15
Explanation:
3Fe (OH)2
Fe = 1×3
O= 2× 3 = 6
H= 2× 3 = 6
Total atoms = 6+6+3=15
I hope I helped you^_^
a wooden baseball bat is an example of
a: compound
b: element
c: heterogeneous
d: homogeneous
A wooden baseball bat is an example of a heterogeneous substance.
A heterogeneous substance is consists of compounds that are not thoroughly mixed together.
Woods are fibrous structural substances with spaces present in trees and other woody plants' stems as well as roots. They are composed of a natural composite of cellulose fibers and are contained with a lignin matrix that is capable of resisting compression.
They can use for fire, building, the manufacture of weapons and tools, furniture, as well as paperwork.
Wood is a heterogeneous, highly porous cellular material. It is made up of cells and the cell walls are made up of roughly 40% cellulose, 15% hemicellulose, and lignin of about (15–30%).
Therefore, we can conclude that a wooden baseball bat is an example of a heterogeneous substance.
Learn more about Heterogeneous substances here:
https://brainly.com/question/24172292?referrer=searchResults
The three most common phases of matter are _______.
Answer:
solids, liquids, gases
2) If a wet sponge weighs 59.3 grams and the
Same spinge when dry, weighs 15.8 grams,
what percent of the initial weight comes from water?
The percentage of water in the wet sponge is 73.34%.
AMOUNT (IN GRAMS) OF WATER IN THE SPONGE:
According to this question, a wet sponge weighs 59.3 grams. However, when dried, the sponge weighs 15.8 grams. This means that the mass (amount) of water in the original sponge is as follows:59.3 - 15.8
= 43.5 grams.
The percentage of water in the initial mass of the sponge can therefore, be calculated as:% mass of water = (mass of water ÷ mass of wet sponge) × 100
% mass of water = 43.5/59.3 × 100
% mass of water = 0.73335 × 100
% mass of water = 73.34%
Therefore, the percent of the initial weight that comes from water is 73.34%
Learn more: https://brainly.com/question/20325127
How many molecules are present in 2 H₂ SO4
Answer:
1 mol of H2SO4 contains 6.022 x 10^23 molecules. : 0.5 mol of H2SO4 contains 0.5 x 6.022 x 10^23 molecules. = 3.011 x 10^23 molecules . that is 49 g of H2SO4 contains 3.011 x 10^23 molecules of H2SO
Explanation:
Calculate the mass of 1 molecule of water
with step
Molecular Mass of water:-
[tex]\\ \sf\longmapsto H_2O[/tex]
[tex]\\ \sf\longmapsto 2(1u)+16u[/tex]
[tex]\\ \sf\longmapsto 2u+16u[/tex]
[tex]\\ \sf\longmapsto 18u[/tex]
[tex]\\ \sf\longmapsto 18g[/tex]
1mole of water weighs 18g
We know
[tex]\\ \sf\longmapsto 1mol=6.023\times 10^23molecules[/tex]
Mass of one molecule:-
[tex]\\ \sf\longmapsto \dfrac{18}{6.023\times 10^23}[/tex]
[tex]\\ \sf\longmapsto 2.98\times 10^24g[/tex]
Which part of the Periodic Table of the elements is used to identify valence electrons? *
Answer: Groups
Explanation:
The number of valence electrons of an element can be determined by the periodic table groups in which the element is categorized
P.S. Families rows in the table!
Does the bubbling that occurs when the methanol is added to the dry sand indicate that the sand and methanol are reacting
It's in the last paragraph of this website.
https://community.ptc.com/t5/PTC-Mathcad/AP-Chemistry-Problem-Help/td-p/64410
The bubbling that occurs when the methanol is added to the dry sand indicate that there is no chemical reaction between sand and methanol rather it is just methanol displacing air between sand .
What is chemical reaction?Chemical reactions are defined as reactions which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical reaction.
There are several characteristics of chemical reactions like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
There are three types of chemical reactions:
1) inorganic reactions
2)organic reactions
3) biochemical reactions
During chemical reactions atoms are rearranged and changes are accompanied by an energy change as new substances are formed.
Learn more about chemical reaction,here:
https://brainly.com/question/14929452
#SPJ2
I Will Mark Brainliest !
Please answer all questions as completely as possible showing all work needed. Also don’t forget to include your units
density = mass / volume
d = m / V
2) Calculate the density of a material that has a mass of 52.457 g and a volume of 13.5 cm3.
3) A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 22.7 mL, and the mass in 39.943 g. What is the density of the rock?
4) The density of silver is 10.49 g/cm3. If a sample of pure silver has a volume of 12.993 cm3, what is the mass?
5) What is the mass of a 350 cm3 sample of pure silicon with a density of 2.336 g/cm3?
6) Pure gold has a density of 19.32 g/cm3. What volume would a piece of gold have if it has a mass of 318.97 g?
7) The density of lead is 11.342 g/mL. What would be the volume of a 200.0 g sample of this metal?
8) The mass of a toy spoon is 7.5 grams, and its volume is 3.2 mL. What is the density of the toy spoon?
9) A 28.5 g of iron shot is added to a graduated cylinder containing 45.50 mL of water. The water level rises to the 49.10 mL mark, from this information, calculate the density of iron.
10) A rectangular block of copper metal weighs 1896 g. The dimensions of the block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of copper? (Hint: V = l x w x h)
pray for my test on monday❤️
For Carbon - 14, the top number will be ____. The bottom number will be ____.
Can someone plz help me answer this question
Answer:
10 ml
Explanation:
The graduated cylinder contains 19 ml of water before the silver pellet is placed inside. Afterwards, the graduated cylinder measures 29 ml of water. Therefore the pellet displaced 10 ml of water. ( 29ml - 19ml = 10ml )
What's you favorite food
Answer:
all of it
Explanation:
my favourite food is pasta.
13. Find the total number of atoms present in the following molecules.
a. 5 H₂O
b. Zn Cl₂
Answer:
ZnCl²=135
5H²O=23
have a great day
The sun is 93 million miles from the earth approximately how many years would it take to travel from earth to the sun if a person flew in a spaceship at 55 miles an hour?
(Hint:begin by dividing the distance by the speed to determine the number of hours it would take. Round your answers the the nearest whole number.)
Answer:
it would take 2 years
Explanation:
93/55=1.69--->1.70------>2
What other methods can be used to identify the components in drugs if you didn't have melting point data
Answer:
ósea un abrazo
Explanation:
....m.......
GET IT RIGHT FOR BONUS
Filtration is the most appropriate method for separating a solution of water and which substance?(1 point)
salt
sand
sugar
alcohol
Answer:
Sand
Explanation:
with salt distillation will work, heat the solution and collect the water in a seperate beaker
With sugar you do the same, boil away the water and collect the water vapour, you'll be left with sugar in the original container and water if you collected it
Use a fraction of column and heat the solution, the alcohol will be seperated out
Sand is the only one that uses mechanical filtration
why is water a compound but hydrogen an element
Compounds are made of more than one element hence water is made of 2 Hydrogen and one Oxygen, but nacent Hydrogen is single hence it is an element.
what is an example of density? pls helppp
Answer:
sruff that has to do wuth vikun=
Explanation:
good job
why does magnesium donate two electrons to oxygen in order to form magnesium oxide (MgO)?
Answer:
electron arrangement of Mg is 2.8.2. To reach a stable octet electron arrangement Mg donates 2 electron to oxygen.Hence, Mgo ion formed.
What does the half-life of a radioactive substance indicate?
A. It indicates how dangerous the substance is to humans.
B. It indicates how much energy is released over time.
C. It indicates how long it takes for the material to decay.
D. It indicates how long it takes until all radioactivity is gone
Answer:
it indicates how long it takes for the material to decay
Explanation:
hope this helps!
The half-life of a radioactive substance indicates how long it takes for the material to decay.
What is half-life of a radioactive?A half life is the amount of time it takes for half of a radioactive substance to decay.
Radioactive isotopes are defined as the isotopes which undergo decay processes very easily. They have very short half life. They are usually the isotopes of heavier elements.
Half life is defined as the time taken for the unstable isotope to fall to half its original value.
Hence, option C is correct.
Learn more about the half-life of a radioactive here:
https://brainly.com/question/9941859
#SPJ2
What will happen to the atoms and molecules of a substance when it undergoes a
chemical reaction?
Answer:They change
Explanation:
Be more specific the next time you ask a question :)
Einstein also said that gravity can affect not just mass but...
A.nothing else, just mass.
B.light waves or energy
C.everything.
Answer:
B. Light waves or energy
Explanation:
Einstein argued that gravity isn't a force at all. He described it as a curvature of time and space caused by mass and energy.
PLZ MARK ME BRAINLIEST.name the types of polymerization and the differences
10 cm3 of metallic cylinder has a mass of 39.35 g. The density of this cylinder is
Group of answer choices
3.935 g/cm3
39.35 g/cm3
10 g/cm3
5.935 g/cm3
Answer:3.935g/cm3
Explanation:39.35 g. /10cm3 = 3.935g/cm3
10 cm³ of metallic cylinder has a mass of 39.35 g. The density of this cylinder is 3.935 g/cm³.
Density is a measure of the amount of mass per unit volume of a substance. It is an intensive physical property, meaning that its value does not change depending on the size of the object.
Density is calculated by dividing an object’s mass by its volume.
The density of water is 1,000 kg/m³ at 4°C. The unit of density is kg/m³ (kilogram per cubic meter). The SI unit of density is kg/m³
Density = mass/volume
= 39.35 g/10 cm³
=3.935 g/cm³.
To know more about density here
https://brainly.com/question/29775886
#SPJ2
b. The student leaves the beach because a hurricane warning comes in. In a
hurricane, water is warmed by the Sun. The air above the ocean is warmed by the
water and rises, causing cooler air masses to sink, resulting in wind. Describe how
heat transfer is involved in hurricanes. (3 points)
what happens when a burning splinter is introduced in gas jar containing carbon dioxide
Answer:
Explanation:
when a burning splinter is introduced into a jar of carbon dioxide the burning fire gets puts out due to the presence of carbon dioxide which is a colorless odorless gas that prevents the burning of fire
Determine the mass in grams of 2.25 × 10²¹ atoms of copper.
Answer:
0.373 g
hope i helped yaMetric Conversion: Which units are equivalent (the same) as 75g? (Pick 3)
(1 Point)
7500 mg
750 dg
7.5 dag
.075 Kg
The unit that is equivalent to 75g is 0.075 kg, 750 dg, and 7.5 dag. The correct options are b, c, and d.
What are measuring units?Measuring units are the units used to denote the measurement quantities. There are seven basic measuring units. They are length, Time, Amount of substance, Electric current, Temperature, Luminous intensity, and Mass.
The current unit is given grams, which are used to measure the mass of any object.
1000 grams is equal to 1 kilogram and 1 dg = 0.1 g, and 1 dag = 10 g. So by this formula, each of the quantities can be calculated.
1 kg = 1000 g
So, 0.075 kg = (0.075 × 1000)g = 75 g
1 dg = 0.1 g
So, 750 dg = (750 × 0.1) g = 75 g
1 dag = 10 g
So, 7.5 dag = (7.5 × 10) g = 75 g
Thus, the correct options are b. 750 dg, c. 7.5 dag, and d. .075 Kg.
To learn more about measuring units, refer to the link:
https://brainly.com/question/867034
#SPJ2
(d) Calculate the relative molecular mass of ammonium sulphate (NH4)2SO4.5H2O
[A, O= 16.0; H= 1.0; C= 12.0; N= 14.0; S= 32.1]
Answer:
222.1
Explanation:
(14+4*1)*2+32.1+16*4+(2*1+16)*5=222.1
