Answer:
Carbon Dioxide
Explanation:
78 POINT PLEASE HELPPP!!!!Which energy source is a nonrenewable resource?
O oil
O sun
O trees
O wind
Answer:
Oil?
Explanation:
Answer:
oil
Explanation:
its nonrenewable
The rate constant of a chemical reaction depends on which of the following terms?
Answer: B
The temp of the reaction
Explanation:
The rate constant (k ) of all chemical reactions depends on temperature.
MARK ME AS BRAINLIEST
Answer:
B
Explanation:
If a 91.3 g piece of aluminum has a density of 2.7 g/cm3, what is its volume in cubic centimeters?
Answer:
The answer is 34 cm³Explanation:
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
mass of aluminum = 91.8 g
density = 2.7 g/cm³
It's volume is
[tex]volume = \frac{91.8}{2.7} \\ [/tex]
We have the final answer as
34 cm³Hope this helps you
Metamorphic rocks can form from other metamorphic rocks. t or f
Answer:
True
Explanation:
The process could repeat it self and the outcome would stay the same.
Using a ruler to measure the length of a stick is an example of
1) extending the sense of sight by using an instrument
2) calculating the percent of error by using a proportion
3) measuring the rate of change of the stick by making inferences
4) predicting the length of the stick by guessing
Answer:
The answer would be 1) extending the sense of sight by using an instrument.
This is because you are using a ruler (your instrument) to see how long the stick is. It can't be 2) calculating the percent of error by using a proportion, because you aren't calculating the percent of error from the stick. It also can't be 3) measuring the rate of change of the stick by making inferences, because you are using a ruler, making it the exact measurement, not making an inference. It can't be 4) predicting the length of the stick by guessing, because again, you're using a ruler to see the exact measurement of the stick.
The Density of this log is 1.75g/cm3. If we cut this log in half, what is the density of the log? Make sure to show your work and explain your answer.
Answer:
The density remains the same
Explanation:
The density remains the same because cutting the object in half will divide the mass & volume by the same amount. The density cant be changed no matter what happens to it.
An example of solution is vinegar because it has 5% acid 95% water
True
False
Answer:
true
Explanation:
6. I have a mixture of tomato sauce,
sugar, and carrots. I bring a
magnet close by. What does the
magnet pick up and what is left
behind?
Answer:
All the items in the mixture will not be picked up by the magnet and therefore, all of them would be left behind
Explanation:
Ferromagnetic materials are materials that can become magnetized and are also readily attracted to a magnet or by a magnetic field. Examples of ferromagnetic materials includes, iron, cobalt, and nickel, and their alloys
Ferromagnetic materials are mainly metals while all materials exhibit some form of magnetism including diamagnetism and paramagnetism, but these are not the type of magnetism seen in everyday life
Therefore, since neither of the tomato sauce mixture, the sugar or the carrots are not ferromagnetic materials none of them will be picked up by the magnet.
The nucleus of the cell
a
Is found inside the chloroplast
b
Is found inside the membrane of a bacterial cell
c
contains DNA and controls the cell's activities
Answer:
c
Explanation:
it is c because that is the andwer
Which of the following has 62 neutrons, 46 protons, and 46 electrons?
Your next-door neighbor has a little girl who is 3 ft, 5 inches tall. What is the little girl’s height measured in inches? in decimeters?
Answer:
41 inches
Explanation:
There is 12 inches in 1 foot so times 12 and 3. Thats 36 so now do 36 + 5 that =41.
Determine the Molar mass of NI3
Answer:
The molar mass of [tex]NI_{3}[/tex] is 394.719 g/mol.
Explanation:
This was on my periodic table.
The fictional element, marvellium has 4 isotopes with mass numbers of 21, 22,24, and 28 amu. Each isotope is found in equal amounts in nature. What number is closest to the average atomic mass of marvellium
Answer:
The answer to that question is 24 AMU.
Explanation:
I know this because i got the answer correct on the quiz. To get the average, you just add the 4 atomic masses given to you together then divide by 4.
What is "Mad Hatter's Disease" ?
Explanation:
Erethism, also known as erethism mercurialis, mad hatter disease, or mad hatter syndrome, is a neurological disorder which affects the whole central nervous system, as well as a symptom complex, derived from mercury poisoning.
Answer:
he became mad due to mercury in the glue he uses for hats it stains hands and the stains make them go mad
Explanation:
work and energy have the same unit why
Answer:
because work is the process of converting energy from one form into another work is a method of transferring energy the amount of work done is the amount of energy transferred so it makes sense to use the same unit hope it helps
Answer:
I'm struggling bbbbbnn
Identify whether longhand notation or noble-gas notation was used in each case below. Potassium (K): 1s22s22p63s23p64s1 longhand notation noble-gas notation
Answer:
Longhand Notation
Explanation:
Explanation I just did it. Sorry I know I might be late to answer.
Answer:
the anwser is A or longhand notation
Explanation:
A wooden block has a mass of 562 g and a volume of 72 cm 3 . What is the density?
The density of the wooden block is 7.81 g/cm³
Density is related to mass and volume by the following equation:
Density = mass / volumeWith the above formula, we can obtain the density of the wooden block as follow:
Mass of wooden block = 562 g
Volume of wooden block = 72 cm³
Density of wooden block =?Density = mass / volume
Density = 562 / 72
Density = 7.81 g/cm³Therefore, the density of the wooden block is 7.81 g/cm³
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Which formula represents a convalent compound
. H2O2
.CaO
.MgS
.NaCl
Answer:
H₂O₂ is a covalent compound
Answer:
Is H₂O₂
Explanation:
So That Answer
I need help and yeah it's the picture
Answer:
the third one because it matches
What tool would you use to test for hardness?
Answer: mohs picks
Explanation: hope its what you wanted
which element has more valence electrons; Rb or Ca?
Answer:
kk
Explanation:
im here
Review scientists and their contributions to atomic theory by filling in the table
below.
Answer:
DALTON: (Experiment : Atomic Theory of matter)(Paticle discovered: Atom) (Model of atom: BILLIARD BALL)
THOMSON: ( Experiment : Cathode ray) (Particle discovered : Electron) (Model of atom : PLUM PUDDING MODEL)
RUTHERFORD: (Experiment: Gold Foil experiment) ( Particle discovered: Nucleus & Protons) ( Model of Atom: RUTHERFORD MODEL)
BOHR: ( Experiment : Atomic structure) ( particle discovered : electrons travel in separate orbits around the nucleus and that the number of electrons in the outer orbit determines the properties of an element) (Model of atom: BOHR MODEL)
CHADWICK: (Experiment : "proton-electron pair")
(particle discovered: Neutrons) ( Model: QUANTUM MECHANICAL MODEL)
How do the particles in s waves move
How can you increase the momentum of an object?
A. By decreasing its velocity
B. By increasing its mass
C. By increasing its friction
S. By decreasing its acceleration
Read these cell observations. In the space next to each answer choice, write whether the cells described are prokaryotic cells, animal cells, plant cells or there is not enough information
To determine.
AnswerDo you have a picture of the chart
Explanation:
Why does sound travel at different speeds through different materials
Answer:
Because if there are more space in the material the sound will travel faster
but if there is less space it will travel slower
2. A rock occupies a volume of 20 cm and has a mass of 54 grams. Find the density of
this rock.
Once formed, how are coordinate covalent bonds different from other covalent bonds?
A) There is no difference
B) They are more ionic in character
C) they are stronger
D) they are weaker
There is no difference.
What is the average speed of a car that travels 540 miles in 6 hours?
how can you maximize the use of useful materials that you have identified?
Answer: The question is not complete, here is the complete question...
How can you maximize the use of useful materials that you have identified? empty bottles, fruits peeling,old news paper
The way to maximize the use of materials identified is by identifying the 3 R's of waste management which are Reduce, Recycle and reuse .
Explanation:
For example, when we check through the materialsempty bottles, fruits peeling,old news paper them can be Reduce, Recycle and reuse.
The plastic bottles can be recycled i.e converting the waste plastic materials into another useful materials like fabric, shoes, mats.
Fruits peeling can be reuse as composts for plants. These can be allow to be decompose which serve as plant compost to release nutrients for plants growth.
Old newspapers can be reduced by been sold to junks shop and some cash can be earned from it.
You can maximize the useful materials that are being identified by recycling, reusing, and reducing them.
Let assume that the unknown materials in question are:
empty bottles, fruit peel, and old papersThe materials in question are called waste materials but they should not be discarded since they have many other purposes.
Recycling is an act or a process of changing waste materials into reusable products. For example, empty bottles can be recycled to produce varieties of products such as birdfeeders, pencil cases, T-shirts, etc.
Fruit peel can be reused on farmlands as compost manure. They can be used to increase the fertility of farm crops.
To reduce a material means to bring smaller in size. Old papers can be reduced in making paper mache arts. This can add creativity and beauty to the world of art.
In conclusion, you can maximize the useful materials that are being identified by recycling, reusing, and reducing them.
Learn more about waste materials here:
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