PLEASE HELP ME OUT. I AM REALLY LOST AND I JUST NEED THIS LAST QUESTION I WILL BE GRATEFUL AND WILL GIVE BRANLIEST!
PLEASE HELP ME OUT. I AM REALLY LOST AND I JUST NEED THIS LAST QUESTION I WILL BE GRATEFUL AND WILL GIVE BRANLIEST!
PLEASE HELP ME OUT. I AM REALLY LOST AND I JUST NEED THIS LAST QUESTION I WILL BE GRATEFUL AND WILL GIVE BRANLIEST!
Answers
Explanation:
—COOH and —NH₂
Carboxylic Acid and Amino
Related Questions
What type of ions are commonly formed from halogens
Answers
Answer:
they all form diatomic molecules.
for example: H2, F2, Cl2, Br2, I2, and At2) and they all form negatively charged ions H-, F-, Cl-, Br-, I-, and At- .
How does catalysts make its way to common usage?
Answers
Which of the isotopes are radioactive? Check all that apply.
hydrogen-1
hydrogen-3
helium-4
carbon-14
uranium-235
copernicium-277
fermium-252
carbon-12
Answers
Answer:
here you go
Explanation:
hydrogen-3
carbon-14
uranium-235
copernicium-277
fermium-252
Answer:
hydrogen-3
carbon-14
uranium-235
copernicium-277
fermium-252
:)
Explanation:
Place the characteristics for each phase of matter into the table where it belongs
Answers
Answer:
Solid- Definite shape
Solid and Liquid- Definite volume, Not easy to compress, if at all
Gas- No Definite Volume
Liquid and Gas- No Definite shape
The characteristics for each phase of matter in the table where it belongs are as follows:
Solids: Definite shape, very little particle motion. Liquids: Fluid motion. Gases: No Definite Volume, easily compressed. Solids and liquids: Definite volume, Not easy to compress, if at all. Liquids and Gases: No Definite shape, constant, fast particle motion. What are the different States of matter?The states of matter may be defined as the three distinct physical forms which matter can take in most environments. They are as follows:
Solid.Liquid.Gas.Each of the states of matter significantly possesses specific chemical and physical properties. For example, solids generally have a definite volume, are relatively rigid, and atoms or molecules are attached to each other very compactly.
Liquids possess a definite volume and have the ability to alter their shape through flowing. The atoms are loosely bonded to one another.
Gas has no definite volume or shape. This state of matter is easily compressed as well.
Therefore, the characteristics for each phase of matter in the table where it belongs are well described.
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How many grams is 2.393 x 10^24 atoms of CI
70.45 g CI
140.9 ga
140.9 mole CI
70.45 mole CI
Answers
Answer:
There are 140.9 grams in 2.393*10²⁴ aotms of Cl.
Explanation:
Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number represents a quantity without an associated physical dimension, so it is considered a pure number that allows describing a physical characteristic without an explicit dimension or unit of expression. Avogadro's number applies to any substance.
Then you can apply the following rule of three: if 6.023*10²³ atoms are contained in 1 mole of the compound, 2.393*10²⁴ atoms are contained in how many moles?
[tex]amount of moles=\frac{2.393*10^{24} *1 mole}{6.023*10^{23} }[/tex]
amount of moles= 3.973
If the molar mass of Cl is 35.453 [tex]\frac{g}{mole}[/tex], then the amount of mass that contains 3.973 moles can be calculated as:
3.973 moles*35.453 [tex]\frac{g}{mole}[/tex]= 140.85 grams ≅ 140.9 grams
There are 140.9 grams in 2.393*10²⁴ aotms of Cl.
What would happen to an impulse if a neuron cannot produce chemicals at a synapse?
Answers
Answer:
Explanation: he axon releases chemicals called neurotransmitters. Neurotransmitters travel across the synapse between the axon and the dendrite of the next neuron. ... The binding allows the nerve impulse to travel through the receiving neuron
Which of the following preparation of salt is incorrect? *
Acid + alkali
Acid + hydrogen
Acid + carbonate
Acid + metal oxide
Answers
Answer:
acid + hydrogen
Explanation:
gives a good combination
How many atoms are present in 2.79 mol of NH3?
Answers
Answer:
2.79 mol NH3 have 2.79 mol of N atoms. Answer is 1.68*10²⁴ N-atoms
Count the total atoms
Answers
Answer:
10
Explanation:
1 Fe atom+ 3 nitrogen atoms+ 6 oxygen atoms= 10 atoms
Which of the following actions decreases the entropy of a system?
A-mixing baking soda and salt
b- freezing water
c- dissolving salt in water
d-boiling water
Answers
Answer:
b- freezing water
Explanation:
Solid<liquid<gas is the general rule for entropy increase
Freezing water would change the phase from liquid to solid which would lead to less entropy
The theory of plate tectonics describes the movement of continental plates across the Earth's surface as if they were riding on a
conveyer belt of convection. Although the plate tectonic movement is extremely slow, there is evidence of this theory. Which
statements below support the theory of plate tectonics? Select ALL that apply.
A)Species became extinct more quickly at the end of the Cretaceous period.
B)99
Fossils of nearly identical species are found on both South America and
African continents.
C)Areas of subduction often have high seismic activity as one plate moves
under another plate.
D)Species become adapted to particular environments as random mutations
generate new phenotypes.
E)Marsupials existed on both North American and Australian continents
when these land masses were connected.
Answers
Answer:
The Answers are B, C, and E.
Explanation:
Fossils of nearly identical species are found on both South America and African continents. Marsupials existed on both North American and Australian continents when these land masses were connected. Areas of subduction often have high seismic activity as one plate moves under another plate. Since the continents were once joined, there is the likelihood that species originated in one location and then spread to other areas as the continents moved is likely. This explains the similarity of fossils or species in very geographically remote areas. The high activity of seismic movement also is best explained by plate movement.
The statements that supports the theory of plate tectonics are:
B) Fossils of nearly identical species are found on both South America and African continents. C) Areas of subduction often have high seismic activity as one plate moves under another plate.E) Marsupials existed on both North American and Australian continents when these land masses were connected.According to the question, we are asked to prove the evidence of the plate tectonic theory based on the movement of continental plates across the Earth's surface.
Plate tectonic theory states that there is a detachment of the outer crust of the Earth and they join when the upper part meets the continental plates and diverges across the planet.
Therefore, the statements that support this theory are the facts that:
Fossils of similar species are found in different continentsThere are different areas of seismic activity as a result of plate movementMarsupiais both existed on different continents even as their land masses are connected.Therefore, the correct answers are options B, C and E
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im struggling and dont want to fail
Answers
Answer: Hey I am sure you will do great just try your best
Explanation:
The process of an element breaking down over time, allowing geologists to get the absolute age is called _________.
Answers
Answer:
radioactive decay
Explanation:
Which of the following diatomic gases has the shortest bond between its two atoms?
A. HI
B. O2
C. CI2
D. N2
Answers
What mass of methane gas (CH4) is required in order to follow the Law of
Conservation of Mass?
Answers
Answer:
2.3g
Explanation: my mom is a teacher
CH₄ + 2O₂ → CO₂ + 2H₂O For this reaction the mass of methane gas (CH4) is required in order to follow the Law of Conservation of Mass is 2.3 gram. Therefore, option D is correct.
What is the Law of Conservation of Mass ?The Law of Conservation of Mass states that the total mass of the reactant is exactly equal to the total mass of the product.
It is also state that in a chemical reaction mass is neither created nor destroyed. For example, the carbon atom in coal gets carbon dioxide when it is burned.
This law is important in understanding and production of various chemical reactions. If researchers experience the identities alongside the quantities of the reactants for any particular reaction.
According to the Law of Conservation of Mass, In given combustion reaction to obey this law the mass of reactant is 2.3 grams.
Thus, option D is correct.
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What are the protons neutrons and electrons of Vanadium-52 +3 charge
HELP
Answers
Answer:
Protons: 23
Neutrons: 28
Electrons: 23
I THINK
Explanation:
Predict the nature of the indicated covalent
bond.
polar or non-polar
Answers
The nature of the indicated covalent bond in water molecule is polar.
What is a covalent bond?A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.
Examples of compounds that exhibit covalent bondOxygenChlorine gasWater (H₂O), etcPolarity of waterThe atoms that make up the molecule of water causes the water molecule to be polar because of its shape.
Thus, the nature of the indicated covalent bond in water molecule is polar.
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someone help plz!
what is a Hydrogel?
Answers
Answer:
Hydrogels can be defined as systems comprising of three-dimensional, physically or chemically bonded polymer networks entrapping water in intermolecular space.
Explanation:
what do you get if oceanic plates are moving away from one another
Answers
Answer:
Explanation:
When two plates are moving away from each other, they are called a divergent plate boundary.Along these boundaries, magma rises from deep within the Earth and erupts to form new crust on the lithosphere.
Helped by none other than the #Queen herself!
Bases and acids are _
A. Mixtures
B. Gases
C. opposites
D. The same
Answers
Answer:
opposite
Explanation:
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Workers who build railway tracks often use a process called thermite welding to connect pieces of track. Thermite is a mixture of aluminum metal (Al) and ferric oxide (Fe2O3). A worker places thermite between two pieces of track and then burns it to form aluminum oxide (Al2O3) and iron (Fe). As the reaction happens, the air around the mixture becomes so hot that the two pieces of track fuse together.
Is this chemical exothermic or endothermic?
Answers
Explanation:
guess
exothermic because of the heat
Which is not a critical part of collision theory?
orientation
energy
amplification
collisions
Answers
Answer:
Amplification
Explanation:
distinguish between climate and atmosphere.
Answers
what are 5 reason masks are important for the virus
Answers
They prevent asymptomatic spread. ...
You're protecting others from illness. ...
They're mandated by law in some states. ...
They're good hygiene in general.
Answer:
they reduce viral transmission
They prevent asymptomatic spread
You're protecting others from illness.
They're mandated by law in some states
They're good hygiene in general
Which compound is produced by a neutralization?
H2O(l)
HNO3(aq)
H3PO4(aq)
Ca(OH)2(s)
Answers
Explanation:
HNO3(aq) is the compound produced by a neutralization
0.75 moles of an unknown acid are dissolved in water. If 0.42 moles of H3O+ form, what was the percent dissociation of the unknown acid?
Answers
Answer:
56 %
Explanation:
The percent dissociation of a weak acid can be defined as:
Moles of weak acid that produced H₃O⁺ species / Total number of weak acid moles * 100%
We are given all the required data to calculate the percent dissociation:
0.42 mol / 0.75 mol * 100 % = 56 %
The percent dissociation is 56%.
Please help me on this!!
Answers
Answer:
OK
Explanation:
OK
Hydrogen and nitrogen react to produce ammonia gas as shown in the following chemical
equation.
N2 + 3H2 - 2NH:
How many grams of hydrogen must react to produce 31.5 grams of ammonia?
Answers
Explanation:
[tex]31.5 \: g \: aommnia \: \times \: \frac{1 \: mol \: ammonia}{8 \: g \: ammonia \: } \: \times \frac{3 \: mol \: hydrogen}{2 \: mol \: ammonia} \: \times \frac{1 \: g \: hydrogen}{1 \: mol \: hydrogen} = \: 5.90625 \: g \: hydrogen \: must \: react \: [/tex]
(1.7m - 2) + (2m – 4)
Answers
Answer: 3.7 m − 6
Explanation: Simplify the expression.
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Matches=from Chemical energy to light energy+heat energy
Answers
Explanation:
A matchstick has a lot of chemical energy stored in it. When the match is struck, it burns and the chemical energy in it produces heat energy and light energy.
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