Answer:
The atomic number of an atom is the number of protons in the nucleus or the number of electrons in a neutral atom
Explanation:
The melting of a glacier is an example of the interactions among which of Earth's spheres? geosphere, troposphere, cryosphere atmosphere, geosphere, cryosphere atmosphere, asthenosphere, biosphere hydrosphere, asthenosphere, atmosphere
Answer:
The melting of a glacier is an example of interaction among;
Hydrosphere, asthenosphere, atmosphere
Explanation:
The melting of a glacier is an example of the interactions among the Earth's cryosphere and hydrosphere
The cryosphere is described as the portions on Earth where water appears in solid (frozen) form such as glaciers, frozen grounds, snow covered land, sea ice, ice sheets, river ice, ice caps, etc.
The hydrosphere is all the forms water on a planet including, ice, liquid water and water vapor, therefore, the cryosphere is a part of the hydrosphere
The geosphere comprises the Earth's interior, including the asthenosphere, which is fluid and hot and therefore spread heat through both conduction and convection to the hydrosphere that raises the ocean temperatures and lead to glacier melting
The green house effect in the atmosphere results in global warming that raises the average temperature of the Earth which in turn raises the temperature of the oceans and the troposphere, resulting in melting of a glacier
Therefore, the melting of a glacier is an example of interaction among the hydrosphere, asthenosphere, and, atmosphere
Find the mass of 11.37 mol of BaO. Round to the nearest whole number.
Answer:
1,354
Explanation:
how can the movement of two plates can cause a trench?
Answer:
they move apart
Explanation:
when two tectonic plates move apart it causes a trench this is most common in oceans
Answer:In particular, ocean trenches are a feature of convergent plate boundaries, where two or more tectonic plates meet. At many convergent plate boundaries, dense lithosphere melts or slides beneath less-dense lithosphere in a process called subduction, creating a trench
Explanation:
How does understanding how to affect the rate of reactions add value to your life? Why is this important for you to understand?
Answer:
because if you do not react to anything you will be a misarable old lady with 5 cats sitting on you .
Explanation: bascially you cant live without reacations to life
Someone help please!
Answer:
D
Explanation:
helpppp PLSSSSSSSSSSS
Answer:
I think 213g
Explanation:
Im not that smart in stuff based in this subject but I think its right but If anyone knows for sure fact check me plz....
All living organisms are composed of
I need help on this, i'll give 30 pts for brainliest
Answer:
All living organisms are made up of one or more cells, which are considered the fundamental units of life. Even unicellular organisms are complex! Inside each cell, atoms make up molecules, which make up cell organelles and structures. In multicellular organisms, similar cells form tissues.
Explanation:
Answer:
All living organisms are composed of one or more cell
Explanation:
hope this helps, please mark brainliest
what is unique about the intertidal coastline ?
Answer: The intertidal or littoral zone maintains a balance between the land and the sea. It provides a home to specially adapted marine plants and animals.
Explanation: The intertidal zone is the area where the ocean meets the land between high and low tides. A tide pool within Monterey Bay National Marine Sanctuary. Intertidal zones exist anywhere the ocean meets the land, from steep, rocky ledges to long, sloping sandy beaches and mudflats that can extend for hundreds of meters.
HELLPPPPP i need to know ASAPPPPPPPP
Calcium is a metal.
Word equations for two reactions of calcium are shown.
calcium + oxygen
→ calcium oxide
calcium + hydrochloric acid → calcium chloride + hydrogen
The equation for the reaction of dilute hydrochloric acid with calcium is
Ca + 2HCl → CaCl2 + H2
Calculate the maximum mass of calcium chloride produced by reacting 8.02 grams of
calcium with excess hydrochloric acid.
relative atomic mass: Ca = 40.1
relative formula mass: CaCl2 = 111.1
Show your working.
Answer:
22.22 g
Explanation:
The balanced reaction equation is;
Ca(s) + 2HCl(aq) → CaCl2(aq) + H2(g)
Number of moles of calcium reacted = 8.02g/40.1g/mol = 0.2 moles of Calcium
From the reaction equation;
1 mole of Ca yields 1 mole of CaCl2
Hence 0.2 moles of Ca also yields 0.2 moles of CaCl2
Mass of calcium chloride produced = number of moles * molar mass
Mass of calcium chloride = 0.2 moles of CaCl2 * 111.1g/mol = 22.22 g
6. What does a numerical subscript following a set of parentheses in a chemical
formula mean?
A numerical subscript following a set of parentheses represents the number of the group or poly-atomic ion in parentheses are present in a chemical formula.
As an example, calcium hydroxide is [tex]\bold { Ca(OH)_2 }[/tex] . The subscript (2) indicates that calcium hydroxide contains two hydroxide ions.
Therefore, A numerical subscript following a set of parentheses represents the number of the group or poly-atomic ion in parentheses are present in a chemical formula.
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Which of these best represents the location of the Earth’s core?
A
the pit of a peach
B
the crust of an apple pie
C
the bread in a peanut butter and jelly sandwich
D
the white of an egg
The best represents the location of the Earth’s core is the pit of a peach. Therefore, option A is correct.
What is earth's core ?The earth core is almost entirely composed of metal, notably iron and nickel, in contrast to the crust and mantle, which are rich in minerals. Iron-nickel alloys found in the core are denoted by their chemical symbols, Ni,Fe. The core also contains siderophile, or substances that dissolve in iron.
The Earth's inner core contains even more metal than the outer core. Both are primarily comprised of iron with a small amount of nickel. However, lighter elements like oxygen, carbon, and silicon are also assumed to be present in small amounts in the iron.
This inner core is around 5,400 degrees Celsius hotter than the Sun's surface. The remaining portion is the liquid outer core of the Earth, which is primarily composed of nickel and iron and has temperatures that are similar to surface temperatures before becoming hotter toward the center.
Thus, option A is correct.
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complete combustion of wax take place in____ zone of a candle flame
Answer:
Non-luminous
Explanation:
Complete combustion of wax take place in non-luminous zone of a candle flame
5.Apply six atoms of Element A combined with eight atoms of Element B
to produce sic compound particles. How many atoms of Elements A and
B does each particle contain? Are all of the atoms used to form
compounds?
Answer:24
Explanation:axtizent
What role does the vulture playing this food web
Answer:
scavenger- eats dead carcasses
Explanation:
In a typical ecosystem, the largest amount of biomass should be found at which level?
A producers
B. primary consumers
C. secondary consumers
O d. tertiary consumers
O E. decomposers
Answer: producers
Explanation:
What happens when chromium nitrate is added to distilled water
Answer:
It does not react with water, but reacts with most acids
Explanation:
Answer:
It doesn't react with water, but reacts with most acids
What is the mass of 7.1 x 1021 molecules of glucose?
Answer:
7249.1
Explanation:
Multiply 7.1x1021= 7249.1
what kind of change is heating of mercuric oxide?
Answer:
Chemical change.
Explanation:
When it is heated it decomposes into mercury and oxygen gas. The mercury oxide reactant becomes the silver color of mercury. Hence, a color change can be noticed throughout the reaction.
Answer:
chemical change
Explanation:
Which type of precipitation can be considered acid rain?
Answer:
form of rain, snow, hail, dew, or fog that transports sulfur and. nitrogen compounds from the high atmosphere to the ground
What determines whether a material melts or burns when heated?
The combustion temperature of a material determines whether a material melts or burns
Materials whose combustion temperatures are lower than their melting point gets burnt instead of melting, because before the temperature of the material is raised up to the melting point temperature, the materials gets combusted at a lower temperature known as the combustion temperature
Melting is physical change and is controlled by the physical property ( melting point ) while burning is chemical change which is irreversible.
Hence we can conclude that The combustion temperature of a material determines whether a material melts or burns
yoo someone help please
Answer: can I suck your super long di ck or titis
Explanation:
Answer:
hi
Explanation:
Unbend a paper clip such that
you have
a long, straight piece of metal. Bend one of the initially straight sections
back and forth several times. Does it become easier or harder to bend
the paper clip in the same spot? What happens if you keep bending the
paper clip back and forth?
uz RS nyodag
Metals have a crystalline in nature, and a consistent shift in stress causes the structure to alter, causing the metal to stiffen and fracture. This is known as metal fatige. The bending causes that to occur.
What is metal ?A metal is a substance that has a shiny look when freshly processed, polished, or shattered, and conducts electricity and heat rather effectively. Generally speaking, metals are malleable and ductile.
These characteristics are the outcome of the metallic link that exists between the metal's atoms or molecules.
The earth's crust is where most pure metals are found. They are discovered in ores, which are solid materials from which metals and minerals may be extracted. The majority of the planet's iron mass, which makes up over a third of its mass, is located in its core.
Thus, Metals have a crystalline in nature, and a consistent shift in stress causes the structure to alter.
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9.
Which element is most likely to conduct heat and electricity?
A. Na B. Ca C.P D. Ne
Answer:
A. Na
Explanation:
Sodium is a good conductor of electricity and heat because it has only one electron in its valence shell.
i hope this helps :)
Answer:
C.) P
Explanation:
I believe this is correct, lmk if it's not.
Question 8
The temperature of a gas is 345K. What is this in degrees Celsius?
0 345°C
O 1.26°C
O 72°C
O 618°C
< Previous
How would you improve your experiment?
answer in 3 to 4 sentence
Answer:i will improve my my experiment by:
1.increasing the validity of that experiment
2.Improving of measurwment techniques
3.reduction of the simple bias
4.Blinding of the experiment
Explanation:
These can be achieved by doing these respectively,
1.Through considering the given time frame feo data collection and the experimental treat
2.Done by ensuring vessels are properly clibrated, are clean and ready to use as well as functioning
3.We can avoid this by doing convenience sampling and again ensuring target population arw properly defined.
4.we can avoid this by alerting the group members on the available group assignments and the data collectors.
Which plant structures are common to all angiosperms?
spores
flowers
cones
endoskeleton
Answer:
B
Explanation:
Which of the following changes are classified as physical changes?
-dissolving sugar in hot tea
-petrifying wood
-cutting an apple into smaller pieces
-carving wood
-Oburning wood
Does a rumor spread faster in a gym where all of
the students can move around freely, or in a classroom where students are
confined to desks? Develop an analogy for the difference in conductivity
between metals and ionic solids.
A rumor spread faster in a classroom where students are confined to desks than in a gym where all of the students can move around freely.
The same applies to conductivity between metals and ionic solids because metals have more close particles.
What is conductivity?Conductivity is the process by which a material is able to transfer electric charge or heat from one point to another without the actual movement of the particles of the substance.
The conductivity of substances varies from one substance to another.
The conductivity of solids is greater than the conductivity of that of other substances.
The conductivity of substances increases with a decrease in the distance between the particles of the substance.
Thus solids that have the closest particles have the highest conductivity.
Liquids have medium conductivity.
Gases have the least conductivity because they have the most spaced-out particles.
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PLSSS HELP ME
1) Which of these bonds is most easily broken?
1. All are equally easy to break
2. Hydrogen Bond
3. Ionic Bond
4. Covalent Bond
2)Hydrogen bonds are formed due to ______.
1. Electromagnetic attraction
2. Sharing of electrons
3. Stealing of electrons
4. 'Stickiness' due to protons and neutrons
3) What is a polar molecule?
1. A molecule found either at the north or south pole
2. A molecule with a positively charged end and a negatively charged end
3. A molecule with a distinct beginning and end
4. Any molecule that includes oxygen
4)Water tension is an example of ______.
1.Oxygen bonding
2.Hydrogen bonding
3.Isometric bonding
4. Covalent bonding
Answer:
1. 2)Hydrogen Bond
2. 1)Electromagnetic attraction
3. 2) A molecule with a positively charged end and a negatively charged end
4. 2.Hydrogen bonding
* i think i am right and i really hope so but please dont
count it against me babe.
explanation:
Individual hydrogen bonds are weak and easily broken; however, they occur in very large numbers in water and in organic polymers, creating a major force in combination. Hydrogen bonds are also responsible for zipping together the DNA double helix.
A hydrogen bond is formed when the positive end of one molecule is attracted to the negative end of another. The concept is similar to magnetic attraction where opposite poles attract. Hydrogen has one proton and one electron. This makes hydrogen an electrically positive atom because it has a deficiency of electrons.
A polar molecule is a chemical species in which the distribution of electrons between the covalently bonded atoms is not even. Some chemical species, such as chains of carbon molecules, share electrons equally and are said to be nonpolar molecules
Water molecules forming hydrogen bonds with one another. The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules. Water molecules are also attracted to other polar molecules and to ions.