Answer:
burrowers
Explanation:
Can anyone help me please
Answer:
Nucleic acids
Explanation:
all organic foods (fruit, meat, etc) contain it to some degree. because all organic foods have dna in them.
HELP ME RIGHT NOW!!! 100 POINTS PLUS A BRAINLEST!
current experiment; cabbage water vinegar, and baking soda ; (to see pH levels)
Name 1 new related experiments that could be done next to further research
Explain why these experiments would be the ones to do next.
Answer:
Soap and tomato juice :)
Explanation:
Using different types of pH levels may affect the results, so that is why I think this would be a good experiment to do. :)
Have an amzing day!!
Please rate and mark brainliest!!!
Answer:
Using litmus paper
Explanation:
If an acid is applied, the paper will turn red [pH range : 0 < x < 7]If it's a neutral substance, the paper will not change color [like water] (pH = 7)If a base is applied, the paper will turn blue [pH range : 7 < x ≤ 14]Describe the three possible decisions you can receive from an
editor when you submit a scientific article for publication. Which
decision is the least likely to occur?
a
Your answer should consist of 3-4 complete sentences with
correct grammar/spelling/punctuation.
Answer 2. Accept with minor revisions: Also known as conditional acceptance, this decision means that the paper requires minor changes for it to be ...
wer:
Explanation:
Consider the following balanced equation:
2KCIO3 → 2KCl + 302
How many grams of O2 will be obtained by decomposing
98.1 grams of KClO3?
Оа
38.4 grams
b
17.1 grams
Ос
25.6 grams
76.8 grams
Answer:
A. 38.4 [gr].
Explanation:
all the details are provided in the attachment, the answer is marked with orange colour.
I dont understand. Please help me.
Answer:
B
Explanation:
it's has more water and will go active way faster
Answer:
Beaker b
Explanation:
This is because the temperature in beaker b is higher. Hot water has more kinetic energy. Therefore, it's particles move faster and collide more frequently with the particles of antacid tablet. So, the reaction occurs faster.
Hope this helps =)
What is an ionic solid?
A. A crystalline solid held together by a shared electron pool
B. A crystalline solid held together by dipole-dipole forces
C. A crystalline olid held together by covalent bonds
D. A crystalline solid held together by charge attractions
Answer:
D
Explanation:
An ionic solid is a crystalline solid held together by charge attractionsAn example is a salt crystal (Na⁺ + Cl⁻ → NaCl)An ionic solid is a crystalline solid held together by charge attractions or an ionic bond.
What is an ionic bond?
Ionic bond or electrovalent bond is a type of bond which is formed between two elements when there is an exchange of electrons which takes place between the atoms resulting in the formation of ions.
When the atom looses an electron it develops a positive charge and forms an ion called the cation while the other atom gains the electron and develops a negative charge and forms an ion called the anion.
As the two atoms are oppositely charged they attract each other which results in the formation of a bond called the ionic bond.They are good conductors of heat and electricity. They have high melting points. These compounds are brittle.
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how many molecules of oxygen are contain in 100 ml of air at NTP? (air contains 21% oxygen by volume
Answer:
600
Explanation:
because if there's 6 molecules in each then 6×100 is 600
calculate the oxidation state of the underlined elements of K2 Cr2 O7
-----
Answer:
+4
Explanation:
In PbO2, oxygen exhibits an oxidation number of -2 (since it's not a peroxide or superoxide):
Let the oxidation number of Pb be x. Then, for the compound to be neutral, the oxidation numbers of all atoms should add up to zero.
⇒ x + (−2) + (−2) = 0
x = +4
So the oxidation no. of Pb is +4.
I hope this helps.
How long is cooked steak good for in the refrigerator?.
Answer:
three to four days
Explanation:
Leftover steak is safe to eat after three to four days in the refrigerator—any longer and you could catch a foodborne illness from bacteria growth. Bacteria can also grow on perishable food that has been left out at room temperature for over two hours or kept at a temperature lower than 40°F.
what are the products for the following equation?
ZnBr2 + F2 ->
Answer:
The products to ZnBr2 + F2 -> Znf + Br2
When we balance this equation we get the following:
2ZnBr2 + F2 -> 2Znf + 2Br2
Hope this helps !!!
Sodium + .... → Sodium sulfate + ....
Answer:
Sodium+ Sulphuric Acid--> Sodium Sulphate+ Water
The exploration of the mid-cayman rise is intended to discover _______. a. what life may have been like before the evolution of photosynthesis b. the origins of photosynthesis c. life in shallow, coastal regions d. the chemical composition of undersea mountains
The exploration of the mid-cayman rise is intended to discover that what life may have been like before the evolution of photosynthesis.
What is mid - cayman rise?Mid - cayman rise is an area or era where only some amount of light is coming but still existence of life is present there.
As we know that plants make their own food by the process called photosynthesis in the presence of light, but this is not the scenario for all the time. Before the discovery of photosynthesis plants also prepared their own food.
Hence, option (a) is correct.
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Answer:
A
Explanation:
At constant temperature, a sample of helium at 760. Torr in a closed container was compressed from 5. 00 l to 3. 00 l. What was the new pressure exerted by the helium on its container?.
P₁V₁=P₂V₂
760.5=P₂.3
P₂=1266.6 torr
Is Iron rusting a physical, or chemical change?
Answer:
the answer is chemical change because the act of rusting changes the substance of iron
Explanation:
Potential energy stored within chemical bonds is called:.
Answer:
Chemical Energy
Explanation:
Energy, Molecules and Chemical Reactions. Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy.
Where are the reproductive organs contained?
Answer:
In my sense your answer must be Pelvic cavity.
What atom is the site of covalent attachment of amc to the model tetrapeptide used in the studies?.
The experiment referenced here involves the use of Y32P-ATP. The atom involved in the site of the covalent attachment is the N atom in Aminomethylcyclohexane (AMC).
The explanation in relation to the attachment of AMC to the Moel Tetrapeptide
Given that Aminomethylcyclohexane (AMC) had been linked around the carboxyl side, it, therefore, means that that type of linkage called the Amide-Linkage (That is N-acylation) can be utilized in the covalent bonding of the fluorophore into the peptide
See the link below for more about Covalent Attachements:
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A neutral atom of Sodium (Na) has 11 positive protons and 11 negative electrons. When sodium LOSES its outer electron, it becomes a Sodium Ion with a charge of +1. Why is its overall charge now +1?
Which best describes the forces in the nucleus of a stable atom?
O A. The weak nuclear force is greater than the electrostatic force.
O B. The electrostatic force is greater than the strong nuclear force.
O c. The weak nuclear force balances out the strong nuclear force.
O D. The strong nuclèar force balances out the electrostatic force.
Best describes the forces in the nucleus of a stable atom is the strong nuclear force balances out the electrostatic force.
The center region of an atom, which is composed of two different types of particles, is known as the atomic nucleus. Protons with positive charges and neutrons with no charges are present. Because of the strong electrostatic attraction between positively charged protons, atomic nuclei should be unstable, however they occasionally remain stable for more than a billion years.
The stability of nuclei suggests that protons and neutrons are attracted to one another by an attractive force. The strong nuclear force, also known as the residual strong force, is responsible for every individual atomic nucleus' stability. Neutrons and protons are held together by this basic force of nature. It is used to explain the atom's and its nucleus' stability, which is otherwise puzzling. It can be used to explain the origin of all atoms and, consequently, the origin of all known simple and complex molecules.
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In the chemical formula h2o, which description explains what the 2 represents?.
H_2O is the chemical formula of compound water.
Here
2 denotes to no of hydrogen atoms as it's after HIn water
There are
2Hydrogen atoms1 Oxygen atoms A lone pair is present over Oxygen atom
Write down the structural formula for the monomer from which
polyvinyl chloride is derived.
The monomer from which the very common commercial polymer poly vinyl chloride is vinyl chloride with the formula, CH₂Cl = CH₂Cl. The PVC is formed by addition polymerization.
What is polymerization ?Polymerization is the process of combination of smaller molecules or compounds in large number to form macromolecules or polymers. There are a lot of polymers that we are using daily in the form of bags, plastics, bottles etc.
Among the common polymers we use PVC or poly vinyl chloride is very essential commercial polymer. The monomer of PVC is vinyl chlorides.
The polymerization of n vinyl chloride to form polyvinyl chloride is given below.
[tex]\rm n CH_{2}Cl = CH_{2}Cl \rightarrow (-CH_{2}Cl - CH_{2}Cl -)__{n}[/tex]
The polymerization of vinyl chloride is taking place through addition mechanism. The vinyl chloride monomer repeatedly add one by one to form the polymer.
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name the follwing compound, KBr
Answer:
Potassium bromide
Explanation:
_______ are similar to molecular formulas but show how atoms are bonded together.
Answer
The structural formula are similar to molecular formulas but show how atoms are bonded together.
Explanation:
The structural formula for a compound gives the same information as its molecular formula (the types and numbers of atoms in the molecule) but also shows how the atoms are connected in the molecule.
(40) If a hypothesis is proven correct, a theory is formulated.
True or false
Answer: False, I believe.
Explanation: If a Hypothesis is proven correct, then another experiment to strengthen that Hypothesis is should be done.
Which of the following occurs when sodium and chlorine bond together to form sodium
A chlorine atom gains an electron from a sodium atom
A chlorine atom gains a proton from a sodium atom.
A chlorine atom donates a proton to a sodium atom.
A chlorine atom donates an electron to a sodium atom.
Differences in the density of seawater cause it to move. True or false?
True
False
Answer:
True
Explanation:
Differences in water density affect vertical ocean currents (movement of surface ocean water to the bottom of the ocean and movement of deep ocean water to the surface). … Denser water tends to sink, while less dense water tends to rise.
Differences in the density of seawater cause it to move. Therefore, the given statement is true.
What is density?The substance's mass per unit of volume is known as its density (volumetric mass density or specific mass). Although the Roman letter D may also be used, the sign most frequently used for density is (the lower case Greek letter rho). Density is calculated mathematically by dividing mass by volume.
Where m represents the mass, V is the volume, and is the density. Density is sometimes roughly characterized as weight every unit volume, while this is incorrect technically; this quantity is much more precisely known as specific weight. One example of this is in the US oil and gas business. Differences in the density of seawater cause it to move.
Therefore, the given statement is true.
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Calculate the volume occupied by 10 moles of hydrogen gas at 145K and 705 Torr.
2.05 L
14L
128 L
0.007 L
The volume occupied by 10 moles of hydrogen gas at 145K and 705 Torr is 128.01L.
How to calculate volume?The volume of a gas can be calculated using ideal gas law equation as follows:
PV = nRT
Where;
P = pressureV = volumen = number of molesR = gas law constantT = temperatureP = 705torr = 0.93atmV = ?T = 145Kn = 10R = 0.0821 Latm/molK0.93 × V = 10 × 0.0821 × 145
0.93V = 119.05
V = 128.01L
Therefore, the volume occupied by 10 moles of hydrogen gas at 145K and 705 Torr is 128.01L.
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the number of cobalt atoms in 4.23 moles of cobalt
Answer:
[tex]2.55 \times {10}^{24} [/tex]
atoms
Which substance is beneficial to the aquatic life?
Dissolved Oxygen
Phosphates
Sewage
Plastic
what is emission spectrum and absorption spectrum?
Answer:
When matter interact with EMR then spectrum is obtained. We can understand both spectra using Bohr's hydrogen spectrum. let's have a look on Bohr's hydrogen spectrum what does it say. It says when a electron gains energy it moves from one energy level to other(lower to higher) which is Absorption phenomenon. When the electrons returns from excited state to ground state they emits several spectral lines. this spectrum is called as emission spectrum. inshort the
Emission spectrum is spectrum of electromagnetic radiations that were emitted from the higher energy state(Excited state) to lower energy state(Ground state). and study of emission spectrum is known as AES (Atomic Emission spectroscopy).
When an atom or ion is subjected to EMR, it absorbs certain level of radiations, and when this absorbed energies are studied under spectroscopy they are plotted as absorption spectrum, and study of Absorption spectrum is known as AAS (Atomic Absorption spectroscopy).
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