Answer:
262.8577 g/mol
Explanation:
The molar mass and molecular weight of Mg3O8P2 is 262.858.
Answer:
The molar mass and molecular weight of Mg3O8P2 is 262.858.
Explanation:
Sara takes a 40-minute bus ride from her home to her grandparents’ home, which is 8 km away. What is the average speed of the bus.
12 Km / hour
Explanation:
using the formula
average speed = ( where time is in hours )
40 min = = hour
speed = 8 ÷ = 8 × = 12 Km / hour
Answer:
12 Km / hour
The exoskeleton of a housefly is made up of
A.keratin. B.chitin. C.lignin. D. All of the above
Answer:
Chitin
Explanation:
A fly's main body is made of a thorax and an abdomen. These parts are covered by a hard exoskeleton made of a bony substance called chitin.
The exoskeleton of a housefly is made up of chitin. Thus, the correct option for this question is B.
What is Exoskeleton?The Exoskeleton may be defined as a tough and rigid external covering present in some invertebrate animals like arthropods. It supports and protects the animals with respect to their external environment.
The main body of a housefly is significantly divided into two regions, i.e. a thorax and an abdomen. The thorax region is further divided into three parts i.e. prothorax, mesothorax, and metathorax.
All these parts of a housefly are remarkably covered by a tough exoskeleton that is constructed of chitin. The housefly has a hard exoskeleton that protects it from moisture loss.
Therefore, the exoskeleton of a housefly is made up of chitin. Thus, the correct option for this question is B.
To learn more about Exoskeleton, refer to the link:
https://brainly.com/question/1619995
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An irregular object with a mass of 18.00 kg displaces 2.50 L of water when placed in a large overflow container. Calculate the density of the object.
Answer:
7.20 kg/L
Explanation:
Density is mass (kg) / volume (L).
18.00kg/2.50L = 7.20 kg/L
If you need it in g/mL this is the equation:
[tex]\frac{7.20kg}{L} *\frac{1000g}{1kg} *\frac{1L}{1000mL} = 7.20g/mL[/tex]
How can two objects of different masses have the same temperature but different amounts of thermal energy?
Which of the following correctly describes solid, liquid, and gas states of matter?
Explanation:
In solids, the particles are tightly packed together. In liquids, the particles have more movement, while in gases, they are spread out. Particles in chemistry can be atoms, ions or molecules. It is important to understand the particle nature of matter.
Which of the following is a result of intermolecular forces
Answer:
The three major types of intermolecular interactions are dipole–dipole interactions, London dispersion forces (these two are often referred to collectively as van der Waals forces), and hydrogen bonds
What is a bowl-shaped crater thought to
be caused by the collapse of an empty
magma chamber?
Answer:
pyroclastic flow. a superheated cloud of gas and volcanic ash that travels swiftly down a volcanic slope. What is a bowl-shaped crater thought to be caused by the collapse of an empty magma chamber? caldera.
Explanation:
can I gave brainliest
I kinda need this question answered fast please and thank you :)
What is a mutual attraction between the nuclei and electrons in two different atoms called?
A.a cation
B.an anion
C.a compound
D.a chemical bond
Theories are built upon testing many ________?
A).laws.
B).Hypothese.
C).Facts.
Answer:
B. Hypothese
Explanation:
Answer:
B.Hypothese
Explanation:
i don't know but that's first came in my mind
Which statement describes an energy measurement?
A. An object travels 14 m.
O B. A car has a mass of 1,250 kg.
C. A rocket travels at 11 m/s.
D. Burning natural gas releases
21,000 kJ.
Answer:
D)a burning natural gas releases 21,000 kj
Is neon magnetic ? Also what id its freezing point?
Answer:
diamagnetic -415.5 degrees F so yea on the magnetic part
Explanation:
what does it mean to have a fair test?
Answer:
to make sure that you change one factor at a time while keeping all other conditions the same.
Explanation:
Answer:
A test with the same control variable
Explanation:
Say you're testing mentos and coke, you have to use the same type of mentos and coke to keep it fair. the only thing you change is the independent variable which would be the number of mentos in this case.
Please help I’ll mark brainleist
Answer:
SAme. What's le question, I will answer correctly.
Explanation:
Which of the following describes an irregular galaxy?
A.) A round football shaped disk
B.) A disk with spiraling arms around it
C.) An oval disk
D.) A random group of stars and no shape
Answer:
D
Explanation:
They don't have define shape nor structure...so a random group of stars and no shape can form a irregular galaxy
Which characteristic influences the polarity of these molecules?
(Molecules are; CCI4, NH3, CH4, H20, CO2)
Answer:
The larger the difference in electronegativity, the larger the dipole moment.
Explanation:
Which statement is true because of Newton's second law?
Group of answer choices
You have to push a full shopping cart with more force than an empty shopping cart.
A soccer ball will not move until someone kicks it.
For every action there is an equal and opposite reaction.
A skateboarder travels at a constant speed when there are balanced forces acting on him.
Answer:
You have to push a shopping cart with more force than an empty shopping cart.
Explanation:
Hope this helps! Plz vote brainliest
Escribe la fórmula de los siguientes compuestos: Triyoduro de fosoro Carburo de silicio Tetracloruro de azufre Pentayoduro de nitrógeno Heptafluoruro de cloro Seleniuro de teluro (VI) Tribromouro de antimonio Nitruro de fósforo (III) Sulfuro arsénico
Answer:
hola, tuve que usar el traductor de google en esto. Ni siquiera sé si entenderás esto, pero vale la pena intentarlo. y la cuestión es que no tengo la respuesta a esto, pero tenía ganas de responder en español :) por favor, responda en español para que pueda responder con una respuesta en español porque ¡esto es divertido! Esta es la tercera respuesta en español que he hecho esta noche y no tengo la intención de detenerme ahora. Sin embargo, me estoy quedando sin cosas que decir. jaja
Explanation:
3+[5(2-3)-6
EVALUATE THE EXPRESSION
HELP PLEASE
Answer:
-8
Explanation:
How many moles are in 7.9 grams of P 2 O 5?
Answer: 0.0556555468903552 moles, you can estimate that to its nearest hundreth, or thousandth.
Explanation:
im just naturally a genius
Why do space objects fall to earth
Answer:
gravity
Explanation:
hope this belps
The space objects fall to earth because of the gravitational force of the earth. Earth pulls all objects towards itself by gravity.
What is gravity?Every object and person in their respective locations can be attributed to the force of gravity. It lends an object weight. Everyone will be floating in the air if there is no gravity.
Differing locations experience different levels of gravity. Similar to the earth, there is a strong gravitational pull. There is the less gravitational pull on the moon. In mars, there is less gravitation force than on earth.
The gravitational force pulls all objects towards itself, that is why if an object from space falls, it falls towards the earth. The gravitational force is very high on Earth.
Thus, due to gravity on earth, all space objects fall to earth.
To learn more about gravity, refer to the below link:
https://brainly.com/question/12054584
#SPJ2
The difference between a mixture and a solution is that mixtures cannot be easily separated. True O False.
Answer:
False
Explanation:
Mixtures are a solute and solvent that are not chemically combined, therefore easily separated. Solutions are a solute and solvent combined together.
Which statement correctly describes both gasses and liquids?
Answer:
B i hope this helped!
Explanation:
Would the following configuration represent
ground or excited state: 15²2s22p03823p®4s'3d"
Excited
Ground
Answer:
Excited state
Explanation:
What is the effect of constant stirring on the solubility of solids and liquids?
Stirring affects how quickly a solute dissolves in a solvent, but has no effect on how much solute will dissolve. The amount of solute that will dissolve is affected by temperature - more will dissolve at higher temperatures. This is called the solubility of the solute
If you are given 40 grams of a dye that has a molar mass of 200 g/mole and then place it in 2
liters of water, what is the molarity of the resulting solution?
A2M
B 0.1 M
C 1M
D2M
Answer:
B
Explanation:
to find how many moles we have you need to use the molarity equation which for this is
40g * (1mole/200g) = .2 moles
Given we know that we have .2 moles
then all you have to do is divide amount of moles by amount of liters to find the molarity
for this problem it is
.2mol/2L which is .1 M
An organism contains 28 chromosomes and undergoes asexual reproduction. How many chromosomes will each of the resulting offspring contain?
Green light has a frequency of 6.01 x 1024 Hz. What is the wavelength?
Answer:
λ= 4.99 * 10^-17
Explanation:
C= F * λ
F= frequency(Hz)
λ= wavelength(m)
C= 3.0 * 10^8
F= 6.01 * 10^24
λ= ?
3.0 * 10^8= (6.01 * 10^24) λ
***Simplify
λ= 4.99 * 10^-17
what is the total charge of 20 electrons in zeka-Coulombs?
Answer:
[tex]3.2\times 10^{-18}\ C[/tex]
Explanation:
No of electrons, n = 20
We need to find the total charge. We can use quantization of electric charge in this case.
Net charge,
q = ne
e is charge on an electron
[tex]q=20\times 1.6\times 10^{-19}\\\\q=3.2\times 10^{-18}\ C[/tex]
So, there are [tex]3.2\times 10^{-18}\ C[/tex] of charge in 20 electrons.
i need some help only answer if you are 100% sure
Answer:
poles
Explanation:
what is the equivalent volume occupied by three millimeters of water?
3 kg
3 cg
3 cubic cm
3 cm
also I apologize I am very stupid
Answer:
three cubic centimeters
Explanation: