Answer:
It is important to know the three different types of rocks because they contain clues about what the Earth was like in the past. Different rocks form under only certain conditions and can tell us something important about the past.
The study of rocks is very important to study the geography of rocks. To understand the Types of soil and rocks on the earth's surface.
What are three types of rocks?There are three different types of rocks igneous, metamorphic and sedimentary rocks. Igneous rocks are formed from melted rock. Sedimentary rocks are formed from slit and animal skeletons.
Metamorphic rocks are formed by changing heat and pressure underground. Rock and mineral are important to understand the material, structure and system of the earth.
The study of rocks help in science and geography. Basalt is used in building rocks. Granite is used to form a monuments. Pumice is used as a scrubbing material. Slate is used for roofing material of roofs.
Therefore, The study of rocks is very important to study the geography of rocks. To understand the Types of soil and rocks on the earth's surface.
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Could someone help me with this?
Answer: sorry wish o could help
Explanation:
what is the difference between polar and ionic? for instance in substances such as vinegar and water.
What do these two changes have in common?
your breath becoming visible on a cold day
ice crystals forming on a window
Select all that apply.
Both are only physical changes,
Both conserve mass,
Both are changes of state,
Both are chemical changes,
Answer: is B and C
Explanation:
The two changes have in common is both conserve mass and both are changes of state.
What are changes?Changes are defined as changes occur when bonds between molecules or atoms are disrupted or established.
It means that one material having a specific set of attributes is converted into another substance with other properties.
There are basically two types of changes.
Physical change - It is defined as a type of transformation in which the form of matter changes but no substance is converted into another.Chemical change - It is defined as a transformation of one material into another, the formation of new materials with distinct properties, and the formation of one or more new substancesThus, the two changes have in common is both conserve mass and both are changes of state.
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If a bug is traveling 5 meters across the floor in 5 seconds. How fast did it
travel?
Answer:
5 seconds
Explanation:
Speed x Time. So t=ds. t=51=5.
Earth and Jupiter are shown next to each other. Earth is much smaller than Jupiter. Why is Jupiter so much larger than Earth? Check all that apply. 1. Inner planets were created at higher velocities. 2. Outer planets have less gravity than inner ones. 3. Outer planets attracted helium, hydrogen, and other gasses. 4. Inner planets formed where temperatures were cooler. 5. Gases escaped from inner planets and not from outer ones.
Answer:
3 and 5
Explanation: i hope that helped
Answer:
1,3,5
Explanation:
If you start a chemical reaction with 5 atoms of hydrogen, how many hydrogen atoms will you have when it is finished?
0 1 atom
05 atoms
04 atoms
O 10 atoms
Answer:
5 atoms
Explanation:
When a chemical reaction starts with 5 atoms of hydrogen, and the reaction goes into completion, it must give us 5 atoms of hydrogen.
This is in compliance with the law of conservation of mass which states that "in a chemical reaction, matter is neither created nor destroyed but converted from one form to another".
In chemical reactions, bonds are broken and new compounds are formed in the process. The same number of species at the start and end of the reaction must still be the same.
The Answer is: 5 atoms
Match the word to the part of the wave. (Lesson 4.02)
Question 9 options:
Wavelength
Crest
Trough
Amplitude
1.
B
2.
A
3.
C
4.
D
Match the word to the part of the wave
Wavelength - A
Crest - B
Amplitude - C
Trough - D
Wave is a disturbance in a medium that carries energy without a net movement of particles and in that waves there is some terms
Wavelength : the distance between any given point and the same point in the next wave cycleCrest : highest surface part of the waves called as crestTrough : it is the lowest part of the wave called troughAmplitude : distance between the resting position and the maximum displacement of waveKnow more about wave
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What gases make up the composition of the atmosphere?
Answer:
Nitrogen — 78 percent.
Oxygen — 21 percent.
Argon — 0.93 percent.
Carbon dioxide — 0.04 percent.
Trace amounts of neon, helium, methane, krypton and hydrogen, as well as water vapor.
Answer:
The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.
Explanation:
Aqueous solutions of ammonium iodide and lead (II) nitrate are mixed. Precipitate:
Chemical Equation:
Complete Ionic Equation:
Net ionic Equation:
Chemical equation:
Pb(NO3)2(aq) + 2NH4I(aq) -->PbI2(s) + 2NH4NO3(aq)
Precipitate:
PbI2 (because it's a yellow insoluble solid)
Complete Ionic Equation:
Pb(aq) + 2NO3(aq) + 2NH4(aq) + I2(aq) --> Pb(s) + I2(s) + 2NH4(aq) + 2NO3(aq)
Net ionic equation:
Pb(aq) + I2(aq) --> Pb(s) + I2(s)
Let me know if there are any errors. Goodluck :)
how many phosphorus atoms are represented in the formula?
Answer:
i believe 4
Explanation:
hope this helps :)
Answer:
= 8 atoms
Explanation:
3 atoms of Sr + 2 atoms of P + 8 atoms of O = 13 atoms total are present.
the highest level of organization is
.Answer:
.Marie Kondo
Answer:
Federal Government
Explanation:
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anyone who knows the account antonio716 add me bc this is my new account
Answer:
nope
Explanation:
your not my friend yet but you still can friend me
may your day be blessed and happy
What do scientists do?
O A. They make ethical decisions for the government.
B. They use their knowledge to make public policy.
O C. They learn about the world through observation.
O D. They make sure all facts fit scientific theories.
SUMIT
please help!! thank you!!
Answer:
d
Explanation:
Fill in the coefficients that will balance the following reaction:
(Note: Use 1 as coefficient where appropriate.)
_C3H7OH + _O2 → _CO2 + _H2O
True or false: plants, animals, and the environment are not dependent on each other for the use of carbon and oxygen.
Pls help 7th grade science
Answer:
It would be the first one, an overall positive charge on one end and overall negative charge on the other end.
Explanation:
Answer:
It's A.) A molecule that has an overall positive change in one end and an overall negative charge on the other
Explanation:
The definition of a polar molecule is a molecule with a negatively charged end and a positively charged end.
What is Alfunim second element ? Please help !!!
A solution is a mixture _____.
that has the same properties throughout
from which the solute can be filtered
that is heterogeneous
in which a solid solute is always dissolved in a liquid solvent
Answer:
homogeneous
Explanation:
Why do we dream? Help me Please;)
Answer:
Explanation:
we dream because when our bodies are taking memories into long term, the memories from that day or the day before collide and make dreams. that is why they resemble things that have happened to us.
Answer:
One widely held theory about the purpose of dreams is that they help you store important memories and things you've learned, get rid of unimportant memories, and sort through complicated thoughts and feelings. Research shows that sleep helps store memories.
The brain is so active when we dream that it is virtually indistinguishable from a brain in the waking state. Even so, the chemistry of it is entirely rewired when we sleep. Many scientists attribute this to the reason dreams are so strange and bizarre.
Explanation:
Iron
Electron Configuration
Answer:
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶
Explanation:
Electronic configuration:
Fe₂₃ = 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶
Abbreviated electronic configuration:
Fe₂₃ = [Ar] 3d⁶4s²
Properties of iron:
Iron is soft, bright white metal.
Its symbol is Fe, atomic number is 26 and atomic mass is 55.85 amu.
It is present in group 8 of periodic table.
It is used to make the steel.
It is malleable and ductile used to make the sheets.
It is good conductor of heat and electricity because of moveable electrons that can easily move from one to another atom.
Its density is 7.87 g/cm³.
The halogens are considered a ____.
a. period
b. group
c. both
d. neither
Answer:
both.......
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How many grams are in 7.23 x 10^24 Al atoms?
Answer:
323.76 g
Explanation:
The number of grams of the given atoms of Aluminum is 323.73 grams.
The given parameters:
Atom of the Aluminum, = 7.23 x 10²⁴The number of grams of the given atoms of Aluminum is calculated as follows;
6.02 x 10²³ atoms of Aluminum = 27 grams7.23 x 10²⁴ atoms of Aluminum = ?[tex]= \frac{7.23 \times 10^{24} \times 27 \ g}{6.02 \times 10^{23}} \\\\= 323.73 \ g[/tex]
Thus, the number of grams of the given atoms of Aluminum is 323.73 grams.
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Write a balanced chemical equation for the following: magnesium metal is burned in oxygen to produce magnesium oxide.
Answer:
2Mg (s) + [tex]O_{2}[/tex] (g) ---> 2MgO (s)
Explanation:
I need help asap :( Its worth 60 points!!!!!!
20 grams of hydrogen reacted with oxygen to form 36 grams of H20 (water). How many grams of oxygen were used up in this reaction?
Answer:
Mass of oxygen react = 32 g
Explanation:
Given data:
Mass of hydrogen = 20 g
Mass of oxygen = ?
Mass of water formed = 36 g
Solution:
Chemical equation:
2H₂ + O₂ → 2H₂O
Number of moles of water formed:
Number of moles = mass/molar mass
Number of moles = 36 g/ 18 g/mol
Number of moles = 2 mol
No we will compare the moles of water with oxygen.
H₂O : O₂
2 : 1
when two moles of water formed one mole of oxygen react.
Mass of oxygen react:
Mass = number of moles × molar mass
Mass = 1 mol × 32 g/mol
Mass = 32 g
a 15 L tank of gas has a pressure of 8.20*10^4 and the new pressure is 7.00*10^4 what is the new volume
Answer:
V₂ =17.57 L
Explanation:
Given data:
Initial volume = 15 L
Initial pressure = 8.20×10⁴ atm
Final pressure = 7.00×10⁴ atm
New volume = ?
Solution:
The given problem will be solved through the Boly's law,
"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"
Mathematical expression:
P₁V₁ = P₂V₂
P₁ = Initial pressure
V₁ = initial volume
P₂ = final pressure
V₂ = final volume
Now we will put the values in formula,
P₁V₁ = P₂V₂
8.20×10⁴ atm × 15 L = 7.00×10⁴ atm × V₂
V₂ =123×10⁴ atm. L/7.00×10⁴ atm
V₂ = 17.57 L
How much energy is in a gamma ray with a frequency of 3.0 x 1020 Hz? answer choices>
O 1.97 x 10 (13)
0 2.21 x 10 (-54)
0 4.52 x 10 (53)
1.98 x 10 (-13)
Answer:
pretty sure it's the second option, sorry if I'm wrong..
Explanation:
Another term for group B element
Answer:
transition metals
Explanation:
Match the following molecules with the number of atoms they contain.
1. 2Fe two
2. 2Al3O2 seven
3. 4O2 five
4. 5C ten
5. H2SO4 eight
ANWER ASAP PLEASSEEEE
Select the correct formula for the polyatomic ion.
The formula for the ammonium ion:
NH3
NH4+
AM+
Answer:
B (NH4+)
For the next one (nitrate ion) it's A (NO3-)
For the last (chromate ion...) it's C (CrO4^2-)
Explanation:
For edge:)
The ammonium ion (NH₄+) is a positively charged polyatomic ion. Therefore option 1 is correct.
The ammonium ion (NH₄+) is a positively charged polyatomic ion that consists of one nitrogen atom (N) bonded to four hydrogen atoms (H). The hydrogen atoms are bonded to the nitrogen atom through covalent bonds.
The formula NH₃, on the other hand, represents ammonia, which is a neutral molecule consisting of one nitrogen atom and three hydrogen atoms. Ammonia does not carry a charge and is not considered a polyatomic ion.
The formula AM+ is not a recognized chemical formula or symbol and does not correspond to any known ion or molecule.
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