Answer:
CExplanation:
It is a colorlessI hope you help by my answee
Cho hai điện tích q1 = 2.10-6 C, q2 = 4. 10-6C, đặt tại A và B trong không khí biết AB = 2 cm. Xác định vectơ cường độ điện trường tại:
a) H, là trung điểm của AB.
b) . M, MA = 1 cm, MB = 3 cm.
c) N, biết rằng NAB là một tam giác đều.
Answer:
AExplanation:
sorry try lang baka malican someone help me plz
Answer:
what do you need help with?
Explanation:
Answer:
Hello brainly user! You did not provide a question for us to help you with! In order for someone to help you, you need to provide the question you are in need of help for. What's your question?
A mixture that you eat with at least 6 compounds in it
Answer:
Coloured candies?
Explanation:
Your teacher has just asked you to measure out 1.24 x 1023 molecules of sodium chloride, Sodium chloride has a chemical formula of Naci. Using a Periodic Table,
determine how many grams of sodium chloride you should measure out.
A 12.08
2.12 x 1028
284 g
D 72.5 x 1021 g
Answer:
A)
Explanation:
Which of these element is NOT an alkali metal? Na Rb H cs
Answer: Hydrogen-H
Explanation: Hydrogen is a gas, the most abundant element in the universe and the simplest of them all
12. What is the mass of 5.00 moles of F^2 O^3?
Answer:
798.5 grams
Explanation:
Is CH4 a molecule, compound, or both?
50 POINTS!!!!!!
Reactions that occur spontaneously must reach an energy threshold before they can proceed. The graph shows the amount of energy needed for a reaction to occur. Explain how enzymes are involved in this reaction and can affect the rate of this reaction.
which substance cannot be decomposed by a chemical change
Answer:
Nonbiodegradable substance
How many protons and neutrons are in the third isotope?
Answer:
6 protons and 7 neutron
Explanation:
Carbon has a third isotopes named carbon-13
All carbon isotopes have 6 protons .
This is called atomic number. To make it up to 13 in carbon -13 you will need 7 neutrons and 6protons .
Someone pls help me I will make you brain
Answer:
D, radiation
Explanation:
the sun's heat radiates onto the land, oceans, and surrounding atmosphere, warming them
what is the only process that removes carbon from the atmosphere
Answer:
Photosynthesis process
Explanation:
Photosynthesis removes carbon dioxide naturally — and trees are especially good at storing carbon removed from the atmosphere by photosynthesis.
2+2++++++++++++++++++++++++++++++++++++++++++++++3
Answer:
2 + 2 + 3 = 7
Explanation:
ggs ez
Give the correct order of apparatus (Crucible, Filter funnel, Test tube, Dropper, Spatula) to show the correct arrangement that can be used to prepare and investigate the nature of pH of a sample of onion solution.
Answer:
Is it Crucible,Test tube,Dropper,Filter funnel, Spatula
Explanation:
The laboratory apparatus is used to experiment with the chemicals and to hold them. To prepare and investigate the pH of the onion sample apparatus required are the crucible, test tube, dropper, filter funnel, and spatula.
What is pH?pH is the measurement of the hydrogen or the hydroxide ion concentration in the solution to determine the alkaline or acidic nature of the substance.
The pH of the onion solution can be determined by experimenting with the help of the laboratory apparatus and reagents. A crucible is a container that can withstand high temperatures.
A test tube is a glassware used to hold the substance or chemical in it. Similarly, a dropper is used to draw liquids. The filter funnel separates the filtrate or the solution. A spatula can be used to remove or add the substance.
Therefore, the correct order of the apparatus is the crucible, test tube, dropper, filter funnel, and spatula.
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what is chemical formula of water, carbon dioxide, oxygen and hydrogen
Answer:
water= H20 , carbondioxide= co2 , oxygen=o2 , hydrogen=h2Explanation:
Answer:
water: H2O,
carbon dioxide: CO2
oxygen:O₂
hydrogen: H2
Explanation:
Is college worth it
Answer:
in my opinion not really
Explanation:
during June , earth is 152,000,000km from the sun. how far is earth from the sun in miles
Answer:
94448421.2201
Explanation:
multiply the value in kilometers by the conversion factor '0.62137119223684'.
So, 152000 kilometers = 152000 × 0.62137119223684 = 94448.42122 miles.
Iron (II) chloride
Covalent or ionic
Answer:
ionic
Explanation:
Iron(II) chloride, also known as ferrous chloride, is the chemical compound of formula FeCl2. It is a paramagnetic solid with a high melting point. The compound is white, but typical samples are often off-white
"type one to two paragraphs describing the changes in potential and kinetic energy of the cart.
Be sure to discuss how the potential and kinetic energy of the cart changes at each of the four
positions along the track, and explain why these changes occur."
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The cart starts out in position A with high potential energy, low kinetic energy, and some thermal energy. As the cart progresses into position B, the kinetic energy begins to increase and the potential energy begins to decrease; as the thermal energy increases as thermal energy from the track is transferred to the cart through friction. Once the cart reaches position C, it has high kinetic energy, low potential energy, and some thermal energy. At position D, the cart has high potential energy, low kinetic energy, and some thermal energy. The potential energy throughout is correlated to gravity, the kinetic energy is correlated to momentum, and the thermal energy is correlated to friction. The potential energy is at its maximum during position A, and its minimum at position C; the kinetic energy is at its maximum during position C, and its minimum at position A; the thermal energy is at its maximum during position B, and its minimum at position A
Who discovered the proton?
Crookes
Rutherford
Balten
Chadwick
Answer:
Sir James Chadwick discovered proton
Explanation:
Sir James Chadwick, was a British physicist who was awarded the 1935 Nobel Prize in Physics for his discovery of the neutron in 1932. In 1941, he wrote the final draft of the MAUD Report, which inspired the U.S. government to begin serious atomic bomb research efforts.
na+F2-> naF a chemical reaction. the synthesis of sodium fluoride noF is shown above all chemical reactions involve a change to an atoms number of protons neutrons electrons
Answer: Electrons
Explanation:
A chemical reaction usually only affects elctrons. A chemical reaction usually results in the electrons being transferred or shared. When sodium and fluorine react to produce sodium fluoride, a sodium electron is transferred to the fluorine to produce ionic bonds. This ionic bond exists between the sodium cation and fluoride (fluorine) anion.
2. What are core elections? How are they represented in the shorthand electron configurations?
Answer:
In shorthand electron configuration, the electron configuration starts with the symbol of the noble gas in the previous period, followed by the additional configuration of the electrons for the given element. For example, aluminum has the atomic number 13, which is the number of protons in the nuclei of its atoms.
Explanation:
Hope this helps.
chemical equation why calcium oxide is a basic
What is an electrolytic cell?
A. A cell with a negative cell voltage
OB. A cell with a spontaneous redox reaction
C. A cell with a positive cell voltage
D. A cell that has a salt-bridge connection
Answer:
A. A cell with a negative cell voltage
Explanation:
other answer is wrong
An electrolytic cell is a cell with a spontaneous redox reaction (option B).
What is an electrolytic cell?Electrolytic cell is an electrochemical cell that utilizes an external source of electrical energy to force a chemical reaction that would otherwise not occur.
An electrolytic cell converts electrical energy into chemical energy. The redox reaction in the cell occurs spontaneously and is responsible for the production of electrical energy.
Therefore, according to this question, option B is correct.
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the ion with 36 electrons, 34 protons, and 44 neutrons
An electromagnet is created by
A. putting a piece of soft iron in an outlet.
B. brushing a piece of steel with a soft cloth.
C. running electric current through a coiled, conductive wire.
D. rubbing two pieces of metal together quickly.
A. putting a piece of soft iron in an outlet
identify two ways in which carbon-12 carbon-13 and carbon-14 are alike
Answer:
identify two ways in which carbon-12, carbon-13, and carbon-14 are alike. they each have 6 protons and neutrons and they're all carbon atoms. what is a chemical compound?
True or false when heat is added to atoms the molecules vibrate much more slowly
Answer:
false
Explanation:
The particles are held together too strongly to allow movement from place to place but the particles do vibrate about their position in the structure. With an increase in temperature, the particles gain kinetic energy and vibrate faster and more strongly
Name any two metals that are found in liquid state at NTP.
Answer:
mercury and gallium are two metals that are found in liquid state at NTP.
An atom of oxygen (atomic number 8) has a mass number of 17. How many neutrons are
in that atom?
# of neutrons = mass number - atomic number
= 17 - 8
= 9
∴ number of neutrons in an atom of oxygen of mass number 17, is 9.