Answers
Related Questions
a) Identify which one of the particles is
I) an anion.
2) a cation
Answers
Answer: Particle F is an anion, and particle E is a cation
Explanation:
A particle is a cation if it has more protons than electrons.
A particle is an anion if it has more electrons than protons.
Hope it helps :) and let me know if you want me to elaborate.
Calculate the normality of a solution made by diluting 12 g of H3PO4 with water to produce 250.0 mL of solution.
Answers
The normality of a solution made by diluting 12 g of H3PO4 with water to produce 250.0 mL of solution is 1.47 eq/L.
The normality of a solution is;
N = Mass of solute in grams/volume of solution in litres × Equivalent weight
Mass of solute = 12 g
volume of solution = 250.0 mL or 0.25 L
Equivalent weight = Molar mass of H3PO4/n
n = Number of hydrogen ions in H3PO4
Equivalent weight = 98 g/mol/3 = 32.7
Substituting values;
N = 12/0.25 × 32.7
N = 1.47 eq/L
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Explain how you can find the number of neutrons in the isotope nitrogen-16
Answers
Answer:
9
Explanation:
Nitrogen-16
Atomic number of nitrogen= 7
electrons=7
protons=7
neutrons= ?
Nitrogen-'16'= 16 means the mass
16-7= 9
There are 9 neutrons in Nitrogen-16
Please someone help WHATS the answer
Answers
electron configuration is the long list underneath the name "calcium" on the element. it starts with 1s^2s^2
Convert 25 gigaseconds into centiseconds
Answers
25 gigaseconds is equal to 2,500,000,000,000 centiseconds
Select the atom that will attract the electron pair (:) more strongly (the atom with the greater electronegativity)
HELP PLEASE
Answers
How many cobalt atoms are in 2 moles of cobalt?
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That means that one mole of cobalt weighs 58.9332 grams (58.9332 g/mol). Based on that information, to convert 2 moles of cobalt to grams, we multiply 2 moles of cobalt by 58.9332.
12.04428152 x [tex]10^{23}[/tex] cobalt atoms are in 2 moles of cobalt.
What are moles?A mole is defined as 6.02214076 ×[tex]10^{23}[/tex]
of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.
One mole of cobalt is equal to 6.02214076 ×[tex]10^{23}[/tex] atoms.
2 moles of cobalt is equal to 6.02214076 × [tex]10^{23}[/tex]atoms x 2
12.04428152 x [tex]10^{23}[/tex]
Hence, 12.04428152 x [tex]10^{23}[/tex]cobalt atoms are in 2 moles of cobalt.
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how many different types of nucleotides are found in nucleic acids
Answers
Answer: four different types!!!!
Explanation:
What were the first 5 planets that were observed? Why were those the only ones? Help pls!
Answers
A clear liquid in an open container is allowed to evaporate. After three days, a solid is left in the container. Was the clear
liquid an element, a compound, or a mixture?
Answers
The liquid did not chemically bond after 3 days, therefor it is a mixture.
Hope this helps!
I had graduated cylinder with 50 mL of water. I added a rock to the graduated cylinder and the water level rose to 56 mL. What is the VOLUME of the rock?
Answers
What do the electron configurations of the elements Mo and Pt have in common?
Answers
Answer:
All of the elements in a period have the same number of atomic orbitals. For example, every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons.
Explanation:
define suspension with example:
Answers
What is the word equation for Sodium Hypochlorite?
Answers
Answer:
Can u phrase differently?
Answer:
If you are looking for the formula, then it is NaOCl
Explanation:
Count the following atoms
NEED ANSWER ASAP
Answers
You have 4 hydrogens in one NH4 compound, and you have 3 NH4, so that gives you 12 H and 3 N.
You also have a coefficient of 2 in front of (NH4)3, so that means you would multiply 12 H atoms by 2 and 3 N by 2, giving you 24 hydrogen atoms and 6 nitrogen atoms.
You also have 1 Phosphorus atom, and 4 oxygen atoms, so now add all your individual atoms up:
24 hydrogen + 6 Nitrogen + 1 Phosphorus + 4 Oxygen = 35 atoms in total
calculate the mass of butane needed to produce 64.1 g of carbon dioxide to three significant figures and appropriate units
Answers
Answer:
21.2 gm
Explanation:
calculate the mass of butane needed to produce 64.1 g of carbon dioxide to three significant figures and appropriate units
butane is the hydrocarbon C4H10
in combustion, we react hydrocarbons with O2 to form CO2 and H2O
so
C4H10 + O2----------------> CO2 + H2O
BALANCE
2C4H10 + 1302--------> 8CO2 + 10 H2O
the molar mass of CO2 is 12 + 16X2 = 44
64.1 gm of CO2 is
64.1/44 = 1.46 MOLES OF CO2,
FOR EVERY 8 MOLES OF CO2 WE NEED 2 MOLES OF BUTANE IT IS A
8:2 OR 4:1 RATIO. THE MOLES OF C4H10 ARE 1/4 THE MOLES OF CO2
SO
THE MOLES OF C4H10 H10 ARE 1.46/4 =0.365 MOLES
THE MOLAR MASS OF BUTANE IS 58.12
0.365 MOLES OF C4H10 HAS A MASS OF 0.365 X 58.12 = 21.2 gm
What is a material through which waves travel?
space
vibrations
motion
medium
Answers
help Plz
Relate: What are three ways to organize data?
Explain: What should scientists do if their hypothesis is supported?
Consider: How does the process of inquiry usually begin?
Recognize: What happens if a hypothesis is not supported?
Answers
Answer:
When gathering data, whether qualitative or quantitative, we can use several tools, such as: surveys, focus groups, interviews, and questionnaires. To help organize data, we can use charts and graphs to help visualize what's going on, such as bar graphs, frequency charts, picture graphs, and line graphs.
If your hypothesis is supported, you might think of ways to refine your hypothesis and test those. Either way, the process of experimentation often leads to whole new questions to explore. The possibilities are infinite, and the search for knowledge is never-ending.
The scientific method is a process that helps answer questions based on observations, carefully planned experiments and deductive reasoning. All scientific inquiry begins with the identification of a problem or question to be answered based on observation.
If the initial hypothesis is not supported, you can go back to the drawing board and hypothesize a new answer to the question and a new way to test it. ... Either way, the process of experimentation often leads to whole new questions to explore. The possibilities are infinite, and the search for knowledge is never-ending.
brainlest
Explanation:
Elabore el balance de la ecuación por oxido reducción enumerando cada paso
CaC2O4 + KMnO4 + H2SO4 → CaSO4 + MnSO4 + K2SO4 + CO2 + H2O
Answers
Answer:
[tex]{ \rm{5CaC _{2}O _{4(aq)}+ 2KMnO _{4(aq)} + 8H _{2} SO _{4(aq)} → 5CaSO _{4(s)}+ 2Mn SO _{4(aq)}+ K _{2} SO _{4(s)} + 10CO _{2(g)} + 8H _{2} O _{l} }}[/tex]
Explanation:
This is a redox reaction formed by combining two half equations.
Check the image above, sorry if my handwriting is poor :(
how many ounces in a small can of crushed pineapple?
Answers
Answer:
Hey mate.....
Explanation:
This is ur answer.....
Crushed Pineapple in 100% Pineapple Juice 8 oz can.Hope it helps!
Brainliest pls!
Follow me! ;)
Three students are labeling organisms in their diorama. Zola wants to label the algae and mushrooms as photosynthetic. Saffi wants to label plants and algae as photosynthetic. Ahmed wants to label plants and all bacteria as photosynthetic. Who is correct?
-Saffi and Ahmed
-Zola only
-Saffi only
-Zola and Ahmed
Answers
Answer:
Saffi only
Explanation:
I just took the test and that was the correct answer :)
what is the empirical formula of hydro carbon 7.7% by mass of hydrogen and 92.3% by mass of carbon
Answers
Answer: A hydrocarbon contains 92.3% by mass of carbon and 7.7% by mass of hydrogen. The empirical formula of the compound will be oose answer:
CH CH5 CH CH3.
Explanation: :)
. Identify molecules of elements;
O2, NH3, He
Answers
Elements can be made of one atom, like He, or be elemental molecules, such as hydrogen (H2), oxygen (O2), chlorine (Cl2), ozone (O3), and sulfur (S8). Atoms are not drawn to scale. Some elements are monatomic, meaning they are made of a single (mon-) atom (-atomic) in their molecular form...
Astronomers often scan the sky using devices called radio
telescopes. What can you conclude about these devices?
Answers
Answer:
A radio telescope is simply a telescope that is designed to receive radio waves from space.
radio telescopes helps to study naturally occurring radio light from stars, galaxies, black holes, and other astronomical objects. We can also use them to transmit and reflect radio light off of planetary bodies in our solar system.
Answer: stronomers often scan the sky using devices called radio telescopes. What can you conclude about these devices? ... They pick up the radio waves emitted by stars.
What are the 4 properties of substances that contain Hydrogen Bonds?
Answers
Answer:
Increase in the melting point, boiling point, solubility, and viscosity of many compounds can be explained by the concept of hydrogen bonding
Explanation:
melting point- when does the solid melt to a liquid
boiling point - a temperature when a liquid will turn into a gas
solubility -solubility is ability of a substance, the solute, to form a solution with another substance
viscosity- Viscosity is a measure of a fluid's resistance to flow. It describes the internal friction of a moving fluid. ( basically how thick it is)
Answer:
Melting point, boiling point, solubillity and viscosity of many substances
Hope this helped you
Which among the following is not present in pure sugar ?
[A] Carbon
[B] Hydrogen
[C] Nitrogen
[D] Oxygen
Answers
Answer:
Nitrogen
Explanation:
Pure sugar is sucrose C12H22011
Short definition of potential and kinetic energy in a roller coaster ride.
Answers
Potential energy is the energy an object has because of where it is in relation to other objects. Kinetic energy is what makes the object move. Many rides use the transfer of potential energy to kinetic energy to move along the track. Hope this helps!
Convert –26 degree Celsius temperature into kelvin .
Answers
Scientists theorize that the original point of matter from which our universe formed was smaller than a dime. This matter would also have:
a. had unimaginable mass
b. been incredibly dense
c. had unimaginable potential energy
d. all of the above
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ANSWER:
B. been incredibly dense? I'm not sure sorry
How does energy move through a wave? 3 evidence and reasons supporting you answer.