Answers
Answer:
the gets rid of waste is decomposer
and organism for is made up of more then one cell
sorry hope it helped you so far and they give you examples
Explanation:
Related Questions
9. Gasoline burns easily if ignited
a) Chemical property
b) Chemical change
c) Physical property
O d) Physical change
Answers
Answer:
I think it is chemical change
What is the oxidation number of an element? PLz help. Will give brainliest to correct answer. explanation helpful but not required. Dont answer unless you know
Answers
Answer:
its eathe a or c a 50/50 chance
Answer:
Explanation:
its B
(please mark as brainliest if it's correct)
Hello! I would really appreciate any help on this chemistry question on effusion and diffusion. Thank you! :)
If a mixture composed of 3.2 grams of helium, 4.9 g oxygen, 5.5 g argon exerts a total pressure of 980 Torr, what is the pressure the helium exerts in the container in atm?
Answers
Answer:
709 torr
Explanation:
Find the number of mols for each atom present. This gives us 0.76 mol Helium, 0.15 mol Oxygen (I assumed Oxygen was O2 for the context of this problem, since Oxygen gas is O2), and 0.14 mol ArgonFind the total number of mols, which is 1.05Find the mol fraction for Helium. Take the mols of helium, 0.76, and place it over 1.05, giving us 0.76 / 1.05Multiply 0.76 / 1.05 to by 980 torr get around 709 torrI need your help please answer ASAP
Answers
At what temperature is a gas likely to have the lowest rate of diffusion? (4 points)
a
15°
21°
оооо
249
d
30°
Answers
Answer:
15°
Explanation:
At the lowest temperature the gas will have the lowest rate of diffusion because diffusion deals with the motion of particles.
Diffusion is the movement of particles from a region of high concentration to that of a lower concentration. According to the kinetic molecular theory of gases, the temperature of a gas is a measure of the average kinetic energy of the molecules. The higher the temperature faster the molecules diffuse.The gas with the lowest temperature will be the slowest to diffuse.
Answer:
15º
Explanation:
The rate of diffusion is lower when the temperature is lower. Since 15º is the lowest temperature of the answers, it has the lowest rate of diffusion.
Helppppppp plzzzzzzzzz
Answers
Answer: C
Explanation:
Cells have different receptors on their surfaces that are responsive to particular signals (such as hormones). When a signal interacts with the particular receptor, a particular response is invoked in the cell. This signal may be produced even by a cell that may be far away from the target cells. This is how cells communicate with each other to maintain homeostasis in the body.
Why are protons neutrons and electrons called subatomic particles
Answers
Answer:
They are atoms that make up a subatomic particle
Explanation:
Atoms are made up of protons, neutrons and electrons, also known as subatomic particles. Because an atom is neutral, the number of electrons is equal to the number of protons. Electrons circle the nucleus, which is made up of protons and neutrons.
Any change to an atom's
will change one atom into a completely different
one. *
•neutrons
•nucleus
•valence electrons
•protons
Answers
i need help with question
Answers
(PO4)2
1x2=2 atoms
a summary about a gas 5 sentences
Answers
Answer:
Gases have two properties that set them apart from solids and liquids. First, gases spontaneously expand to fill the container they occupy, no matter its size. In other words, a gas has no fixed volume or shape. Secondly, gases are easily compressible.
Explanation:
Hope this helps
Select the lewis structure for xeo2f2 which correctly minimizes formal charges.
Answers
Answer:
explanation and image attached
Explanation:
Our aim is to draw a structure of XeO2F2 whith the least formal charges. We must remember that the compound has 34 valence electrons.
To obtain the least formal charges then Xe must have a total of twelve electrons on its valence shell instead of eight.
The other atoms around the central Xe atom are arranged as shown in the image attached.
Image Credit: UCLA
The correct Lewis structure allows all the atoms involved in the bond to have eight electrons in the valence layer.
You can see this structure in the image attached below.
We can arrive at this answer because:
According to the Lewis structure, atoms must achieve electronic stability, by getting eight electrons in the valence layer.Therefore, covalent bonds are very important, as it allows atoms to share electrons, so that they achieve stability.Within the Lewis structure, each little ball around the atom symbol represents an electron in the valence layer and each trace represents the sharing of one more electron.In this case, we can observe the figure below and count the number of electrons that each atom reaches with the covalent bond between them. This will show us that each has eight electrons, which is the correct structure for [tex]X_eO_2F_2[/tex].
More information:
https://brainly.com/question/11439067?referrer=searchResults
Why does Ca have a lower ionization energy than He
ill give u brainliest :)
Answers
Answer: because he has more protons than ca
Explanation:
solar radiaton is visible light and some of the radiaton like____ is invisible
A.red light
B.ultraviolet light
C.heat
Answers
Answer:
Ultraviolet light.......
Explanation:
Answer:
B.ultraviolet light
Explanation:
___________
Help plz:))) I’ll mark u brainliest
Answers
B.The elements all have three valence electrons
One hot day, after adding fertilizer to the soil for her flowers, Joann notices that their petals change from pink to purple. Intrigued, she stops to smell her flowers to see if their scent has changed.
Which indicates a chemical change in the scenario?
energy change
formation of a gas
color change
release of an odor
Answers
Answer:
in this scenario a color change occured.
Why is sublimation such a critical component for the water cycle in cold climates?
Answers
Answer:
Sublimation is a critical component for the water cycle in cold climates where water in the solid form or ice is prevalent because sublimation which is the transformation of a solid substance to a liquid without passing through the liquid phase including when ice transforms directly into vapors, readily takes place when the relative humidity is low and the wind is dry, which are conditions that can be found combined mainly in cold climates
Explanation:
Antonio observes the weather one afternoon. He claims that thunderstorms are likely. Which observation provides evidence that supports this claim? There is a light wind. The temperature is 23 °C (75 °F). The winds are blowing from the east. The clouds are mainly cumulonimbus.
Answers
Answer:
The clouds are mainly cumulonimbus.
Explanation:
A Thunderstorms is a relatively small storm but usually quite intense. As little as 10 percent of thunderstorms may be considered severe globally. These severe thunderstorms may lead to high winds, hail, flash floods, and tornadoes. Severe thunderstorms may be injurious to health and even lead to fatalities.
Thunderstorms are produced by cumulonimbus clouds, hence Antonio's observation of a cumulonimbus correlates well with the prediction of a thunderstorm.
What is the molecular formula of hydrogen peroxide ?
Answers
Answer:
An inorganic peroxide consisting of two hydroxy groups joined by a covalent oxygen-oxygen single bond. Hydrogen peroxide is a chemical compound with the formula H2O2.
A candy bar has _______ energy.
A. Kinetic
B. Potential
Answers
Answer: b
Explanation:
How many moles are in 4.35 X 1024 atoms of Iron (Fe)?
Answers
Answer:
The answer is 7.23 molesExplanation:
To find the number of moles in a substance given it's number of entities we use the formula
[tex]n = \frac{N}{L} \\ [/tex]
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
[tex]n = \frac{4.35 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 7.225913...[/tex]
We have the final answer as
7.23 molesHope this helps you
What is the coefficient for titanium tetrachloride when the equation below is balanced?
TiCl4+H2O=TiO2+HCl
Answers
TiCl₄+2H₂O⇔TiO₂+4HCl
The coefficient for titanium tetrachloride = 1
Further explanationEqualization of chemical reactions can be done using variables. Steps in equalizing the reaction equation:
1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c, etc.
2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index (subscript) between reactant and product
3. Select the coefficient of the substance with the most complex chemical formula equal to 1
Reaction
TiCl₄+H₂O⇔TiO₂+HCl
give coefficient
TiCl₄+aH₂O⇔bTiO₂+cHCl
Ti, left=1, right=b⇒b=1
Cl, left=4, right=c⇒c=4
H, left=2a, right=c⇒2a=c⇒2a=4⇒a=2
O, left=a, right=2b⇒a=2b⇒2=2.1⇒match
Balanced equation :
TiCl₄+2H₂O⇔TiO₂+4HCl
Answer:
the coefficient of TiCl4 would be 1
Identify ALL the possible mol ratio from
this balanced equation:
Answers
There are 3 possible mole ratios
Further explanationA reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.
Reaction
N₂(g)+3H₂(g)⇒2NH₃
So mol ratio :
N₂:H₂:NH₃=1:3:2
Possible mol ratio :1 mole N₂
3 mol H₂
2 mole NH₃
3 mole H₂
1 mole N₂
2 mole NH₃
In 2011, a computer named Watson competed against two humans on a popular television quiz show and won. Watson listened to each question and responded.
1. What similarities and differences are there between a computer like Watson and the human nervous system?
Answers
Answer:
A computer is made up of wires which is like nerves in our body they send signals throughout our bodies and tell us what to do about a situation. The hard drive of a computer is just like our brain which is the main component of the nervous system it controls involuntary, voluntary, movement and coordination. Also, just like the keys and mouse of a computer we have sensory neurons which pick up what is around us by touch.
Explanation:
40 POINTS write a lab report about types of reactions
Answers
Answer:
bruh
Explanation:
The purpose of this lab was to explore the different types of chemical reactions in this laboratory procedure. The question for this lab is, how does knowing the reactants and products help me classify a chemical reaction. In this experiment, I made observations of the reactants and the products. I used these observations to write the balanced chemical equations and to classify the reaction it made.
Answer:
The purpose of this lab was to explore the different types of chemical reactions in this laboratory procedure. The question for this lab is, how does knowing the reactants and products help me classify a chemical reaction. In this experiment, I made observations of the reactants and the products. I used these observations to write the balanced chemical equations and to classify the reaction it made.
Explanation:
How many grams are in 3 mol of KBr?
A. 238 g
B. 476 g
C. 119 g
D. 357 g
Answers
Answer:
Its 357 y'all
Explanation:
add me on brain liest.
Answer:
357
Explanation:
which two particles are found in an atoms nucleous
a)neutrons
b)protons
c)isotopes
d)electrons
Answers
Answer:
neutrons, protons
Explanation:
Answer:
Option A
Option B
Explanation:
It isn't option D because electrons are on the outside of the nucleus of the atom, and it isn't option C because isotopes are usually the same elements but with different amounts of neutrons while having the same number of protons. Leaving options A and B or "neutrons and protons" as your answer and that's because neutrons and protons are always found in the center of the nucleus which also helps determine the element.
Hope this helps.
What is the difference between a polar and a nonpolar bond?And how can i figure out if its polar or nonpolar in a bond question?
Answers
Answer:
If the electronegativity of two atoms is basically the same, a nonpolar covalent bond will form, and if the electronegativity is slightly different, a polar covalent bond will form.
Explanation:
that's your answer very easy.
Answer:
(If the difference in electronegativity for the atoms in a bond is greater than 0.4, we consider the bond polar. If the difference in electronegativity is less than 0.4, the bond is essentially nonpolar.) If there are no polar bonds, the molecule is nonpolar.
Explanation:
g Identify the true statements regarding α-1,6 linkages in glycogen. At least four glucose residues separate α‑1,6 linkages. The number of sites for enzyme action on a glycogen molecule is increased through α‑1,6 linkages. New α‑1,6 linkages can only form if the branch has a free reducing end. The reaction that forms α-1,6 linkages is catalyzed by a branching enzyme. Exactly four residues extend from these linkages.
Answers
Answer:
At least four glucose residues separate α‑1,6 linkages.
The number of sites for enzyme action on a glycogen molecule is increased through α‑1,6 linkages.
The reaction that forms α-1,6 linkages is catalyzed by a branching enzyme.
Explanation:
Glycogen is a polymer of glucose and is the primary carbohydrate storage form in animals. The polymer is composed of glucose units linked in alpha(1-4) straight chains and alpha(1-6) branches which occur on average every 8-12 straight chain glucose residues. It has a reducing and non-reducing end. The end of the molecule containing a free carbon number one on glucose is called a reducing end. The other ends are all called non-reducing ends.
During the breakdown of glycogen, glucose units are removed one at a time from the non-reducing end until a point about four glucose residues away from a branch which will require a debranching enzyme to act for further breakdown to occur. Since many such branches occur in a glycogen molecule, it makes it possible for breakdown of glycogen to occur at many points speedily.
Glycogen branching enzyme is required to make alpha (1-6) glycosidic bonds. It transfers 6 to 7 glucose units from the non-reducing end of a straight chain glycogen molecule to an interior position of the same or another glycogen molecule forming alpha (1-6) bonds.
please I need help with everything
Answers
Answer:
See below!
Explanation:
An acid (A) will have acid in the name. It will also have a hydrogen bonded to an electronegative compound. A molecular compound (M) will have nonmetals and/or hydrogen. An ionic compound (I) will have nonmetals and first and second column metals. It could also include charged compounds. A transition metal (TM) will have a transition metal in the compound.
The formulas for TM and I are made by balancing the charges of the atoms to equal zero. The formulas for M can be found from the name itself. The formulas for A have to be memorized.
TM ==> copper (II) oxide ==> CuO
A ==> hydrosulfuric acid ==> H₂S
TM ==> iron (III) fluoride ==> FeF₃
TM ==> lead (II) chlorate ==> PbCl₂
A ==> hydrochloric acid ==> HCl
M ==> dihydrogen monoxide ==> H₂O
A ==> sulfurous acid ==> H₂SO₃
I ==> potassium oxide ==> KO
I ==> ammonium hydroxide ==> NH₄OH
M ==> nitrogen trioxide ==> NO₃
I ==> aluminum phosphate ==> AlPO₄
To name ionic (I) compounds, simply put the name of the metal with the nonmetal. But, for the nonmetal change, the ending to "-ide". To name acids (A), say hydro- with the atom/compound it is attached to and end with acid.
I ==> MgSO₄ ==> magnesium sulfate
I ==> HgS ==> mercury sulfide
I ==> Na₂S ==> sodium sulfide
A ==> HF ==> hydrofluoric acid
I ==> KCN ==> potassium cyanide
In 1665, Robert Hooke observed an image similar to the one shown using a very simple microscope.
Which of the following describe the individual structural units of living matter that Robert Hooke observed?
Answers
Answer :Yet Hooke was perhaps the single greatest experimental scientist of the describing elasticity that is still used today ("Hooke's Law"); assisted Robert Boyle the history of biology largely rests on his book Micrographia, published in 1665. than his compound microscope, but found simple microscopes difficult to use: he
Explanation: think you
