Answer:
Number of protons
Explanation:
The number of protons in one atom of an element determines the atom's identity, and the number of electrons determines its electrical charge.
Which of the following statements best describe the movement of particles in a gas
What is the amplitude ?
Answer: The amplitude is a measure of the strength or intensity of the wave
Explanation: when looking at a sound wave, the amplitude will measure the loudness of the sound.
Which statement about the alkali metals is correct?
A. They are usually gases.
B. They are extremely unreactive.
C. They are located in the left-most column of The Periodic Table
D. They form negative ions with a -1 charge
Answer:
its c they are located in the left most column of the periodic table
When water goes from its liquid state to a gas which are being broke
Answer:
Studies have revealed that evaporation—the process by which water changes from a liquid to a gas—from oceans, seas, and other bodies of water (lakes, rivers, streams) provides nearly 90% of the moisture in our atmosphere. Most of the remaining 10% found in the atmosphere is released by plants through transpiration.
Explanation:
can someone help me please
Answer:
c
Explanation:its the ansr
In which cell organelle does photosynthesis take place?
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Cell membrane
the answer for your question is Chloroplast
The Earth takes approximately 365.25 days to revolve around
the Sun. To account for the time beyond 365 days, we add a
day to the calendar
The Earth takes approximately 365.25 days to revolve around
the Sun. To account for the time beyond 365 days, we add a
day to the calendar
that's right
which is the fastest chemical reaction
Answer: dust or decay
Explanation:
16. The half-life of carbon-14 is 5,730 years. What fraction of a 1gram
5 points
sample of carbon-14 would remain after 17,190 years? *
O 1/2
O 1/4
O 1/8
O 1/16
Answer:
i think it 1/2
Explanation:
3. What is found around the roots of some plants that turns nitrogen from the form we cannot use to the form we can use?
Answer:
Bacteria
Explanation:
Some plants, specifically leguminous plants form a symbiotic relationship with certain bacteria species called NITROGEN-FIXING BACTERIA in their root nodules. In this relationship, the bacteria species e.g nitrosomonas, nitrobacter etc help the plants fix atmospheric nitrogen (N2) or ammonium compounds, which are forms of nitrogen that are unusable to the plant into nitrates, a usable form.
Therefore, BACTERIA are the organisms found around the roots of these set of plants (legumes) that turns nitrogen from the form we cannot use to the form we can use.
Plz help
A candle burning is an example of
A. an endothermic change
B. a physical change
C. energy being taken in
D. an exothermic change
Answer:
D
Explanation: An exothermic change is Because it has heat.
1, If the “R” under the group title represent the elements in that group, then how any atoms of Na (sodium) will react with 1 atom of O (oxygen).
2. If the “R” under the group title represent the elements in that group, then how any atoms of Na (sodium) will react with 1 atom of H (hydrogen).
Answer:
NaH one atom of sodium react with one hydrogen to form sodium hydride
Explanation:
Which of the following are possible characteristics for the element this atom represents?
A.
Hard, can be flattened by a hammer
B
A non-reactive colorless gas
C.
Dull, non-conductor of heat and electricity
D
Shiny silver, can be coiled into a wire
Answer:
B
Explanation:
Sorry if i'm wrong
What happens to
temperature in your
layer as you go higher
in altitude.
When drawing a covalent lewis dot diagram its important to ensure that:
A each atom is surrounded by 6 electrons
B all symbols are in lower case letters
C all the elements have a charge in the top right side
D each atom is surrounded by 8 electrons
HCI is a strong acid. What particles would you expect to find in a solution of HCI(aq)?
HCI, H+ and Cl- particles
H+ particles only
H+ and Cl- particles
HCl particles only
it ionizes completely because it's a strong acid so no HCl particles will be found only H+ that reacts with H2O and Cl- so the 3rd option is correct
Where was the first permanent European settlement in what is now the United States?
A.
St. Augustine, Florida
B.
New Orleans, Louisiana
C. Plymouth, Massachusetts
D
Jamestown, Virginia
Need help ASAP
Answer:
Jamestown, Virginia
Explanation:
Answer:
jamstown
Explanation:
_FeBr3 +_H2SO4 --->_Fe2(SO4)3 +_HBr
Answer:
2FeBr₃ + 3H₂SO₄ ⇒ Fe₂(SO₄)₃ + 6HBr
Explanation:
match the products and reactants of both sides.
Separate the following gene sequence into codons: TACGTCTTACGCTATGTC
Answer really quick plssss
Answer:
I think it's AUGCAGAAUGCGAUACAG
Which Bohr diagram is drawn INCORRECTLY?
0 iv
O i
Oii
Pls helppp
Answer:
It is indeed c (II) because there can only be 2 electrons on the first layer
Explanation:
Describe how predation is good for overall health of an ecosystem
Answer:
Predaiation is good so that 1 certain population of animals does not get overpopulated
Explanation:
What are the three types of protist and how are they similar and how are they different (this is science but there is no tab for it)
Answer:
They are eukaryotic, which means they have a nucleus. Most have mitochondria
Which of the following have the correct pairing of ion charge to the number of protons and electrons that would
deliver that charge for the ion written?
Select ALL that apply.
Select all that apply
А. 0-2: 8 protons and 4 electrons
B. Na+l: 11 protons and 10 electrons
С. N-3.7 protons and 10 electrons
D. Al 3. 13 protons and 16 electrons
Answer:
Explanation:
O-2 means that there are 2 more electrons than protons. This one is incorrect.
Na + 1 is correct. 11 protons and 10 electrons.
N-3 is correct 7 protons and 10 electrons.
AL+3 is incorrect. It goes the other way 13 protons 10 electrons.
. Which of the following natural disasters is likely to cause the most widespread damage in a coastal ecosystem?
Answer:
Wildfire
Explanation:
Fire go brrrr
A tropical cyclone is a natural disaster which is likely to cause the most widespread damage in a coastal ecosystem.
What is ecosystem?
Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
Learn more about ecosystem,here:
https://brainly.com/question/1673533
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If chemical weathering occurs when minerals inside of the rock changes chemically. Will it change the rate of chemical weathering on a rock if it increase in rainfall amounts slow movement of a glacier, rapid growth of plant roots or decrease in air temperature?
In science, all ideas are not tested with evidence from the natural world.
Question 4 options:
True
False
Answer:
i belive its trrue
Explanation:
Answer:
i think its false i hope this helps
Explanation:
what orbital represents the transition metals?
Answer:
The name transition metal refers to the position in the periodic table of elements. The transition elements represent the successive addition of electrons to the d atomic orbitals of the atoms. In this way, the transition metals represent the transition between group 2 (2A) elements and group 13 (3A) elements.
Explanation:
Please help
As the temperature increases, the molecular motion of the molecules decreases and it
becomes difficult to overcome the polar attractions.
a. TRUE
b. FALSE
What is the difference between the atomic weight and the relative
atomic mass (RAM)?
Answer:
Relative and average atomic mass both describe properties of an element related to its different isotopes. However, relative atomic mass is a standardized number that's assumed to be correct under most circumstances, while average atomic mass is only true for a specific sample.
Explanation:
difference between fluids and nonfluids
Answer:
All liquids are fluids but not all fluids are liquids. Fluids basically describe anything that can flow as a result of a difference in pressure between two points. Liquids on the other hand are a subset of fluids. Liquids are the incompressible fluids. These are the fluids who's density does not change sharply with pressure.
Gases are also fluids, they form the compressible fluids. They do flow as a result of difference in pressure between two points but at the same time they can be compressed or expanded. Their density fluctuates with pressure.
Hence fluids consist of 2 mutually exclusive groups of compressible and incompressible fluids. Liquids are the incompressible fluids and hence form a subset of the more general term fluid.