Answers about Chemistry > 자유게시판

During the birth process, several key changes occur in both the mother and the baby. The mother's body experiences contractions of the uterus, which help to dil
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Chemistry









What is the least number of planes that enclose a solid and thrivetriospace name the solid?


Asked by Anonymous



The least number of planes that can enclose a solid is four, which form a tetrahedron. A tetrahedron is a three-dimensional shape with four triangular faces, fo
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Chemistry









What is a particle written as?


Asked by Anonymous



A particle is typically represented as a point-like entity in physics, characterized by properties such as mass, charge, and spin. In quantum mechanics, particl
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Chemistry









Would questra metals turn or tarnish?


Asked by Anonymous



Questra metals, like other metals, can tarnish over time due to exposure to moisture, air, and certain chemicals. Tarnishing occurs when a metal reacts with sul
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Chemistry









What is the particle size of clay in mm?


Asked by Anonymous



Clay particles are classified as having a diameter of less than 0.002 mm (or 2 micrometers). This fine particle size allows clay to exhibit unique properties, s
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Chemistry









What is the minimum size of clay particle?


Asked by Anonymous



The minimum size of clay particles is typically defined as being less than 2 micrometers (µm) in diameter. Particles of this size are classified as clay in soil
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Chemistry









How is the fusion used to calculate volume of a liquid frozen that produced 1 kJ of energy?


Asked by Anonymous



The fusion process involves the phase change of a substance from liquid to solid, which releases energy. To calculate the volume of liquid frozen that produced
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Chemistry









Which has high impact and urgency and typically needs a separate procedure?


Asked by Anonymous



Issues that have high impact and urgency often pertain to critical situations requiring immediate attention, such as medical emergencies or cybersecurity breach
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Chemistry









Is it safe to use moldy charcoal?


Asked by Anonymous



Using moldy charcoal is not recommended, as mold can produce mycotoxins that may be harmful if ingested or inhaled. While the charcoal itself may still burn, mo
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Chemistry



+1









Do all compounds that contain only hydrogen carbon and oxygen has the same properties as one another?


Asked by Anonymous



No, compounds that contain only hydrogen, carbon, and oxygen do not all have the same properties. These compounds, which include various hydrocarbons, alcohols,
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Chemistry









What is the nameof the reactant consumed by the reaction?


Asked by Anonymous



The name of the reactant consumed in a reaction depends on the specific chemical reaction being referred to. In general, reactants are the starting substances t
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Chemistry









A bedroom has a volume of 117m What is its volume in km?


Asked by Anonymous



A bedroom does NOT have a volume of '117m' It may have a volume of '117 m^(3) ' . It will have a volume of 1.17 x 10^(-7) km^(3) or 0.000000117 km^(3) NB T
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Chemistry









A formula is used to represent what in chemistry?


Asked by Anonymous



A formula in chemistry is used to represent the composition of a compound in terms of the types and numbers of atoms present. It provides information about the
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Chemistry









Why must liquid refrigerant be present for the pressure - temperature relationship to apply?


Asked by Anonymous



The pressure-temperature relationship for refrigerants is based on the principles of thermodynamics, specifically the behavior of substances in different phases
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Chemistry









How do you find the theoretical mass of iron in one serving of cereal?


Asked by Anonymous



To find the theoretical mass of iron in one serving of cereal, you first need to check the nutritional label for the iron content per serving, usually listed in
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Chemistry









What compounds is a non electrolyte when pure but an electrolyte when dissolved in water?


Asked by Anonymous



A non-electrolyte when pure, but an electrolyte when dissolved in water, is typically a compound that ionizes in solution. An example is acetic acid (CH₃COOH);
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Chemistry









How do you draw three resonance structures for a polyatomic ion?


Asked by Anonymous



To draw resonance structures for a polyatomic ion, start by determining the total number of valence electrons available, including those contributed by the ion'
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Chemistry









If the coefficient 2 is placed in front of the product tetraiodine nonaoxide (I4O9) then how many atoms of each element must be accounted for on the other side of the equation?


Asked by Anonymous



If the coefficient 2 is placed in front of tetraiodine nonaoxide (I₄O₉), the formula becomes 2 I₄O₉. This means there are 8 iodine (I) atoms and 18 oxygen (O) a
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Chemistry



+1









Why don't all of the particles in an atom contribute to the charge?


Asked by Anonymous



In an atom, the charge is primarily determined by the protons and electrons. Protons have a positive charge, while electrons have a negative charge, and their c
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Chemistry









Is bran muffins a mixture element or compound?


Asked by Anonymous



Bran muffins are a mixture, not an element or a compound. They are composed of various ingredients, such as flour, bran, sugar, eggs, and baking powder, which r
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Science



+2









The nuetrilization of an acid by a base produces?


Asked by Anonymous



A (Chemical) SAlt & Water. Here are the acid reactions. Acid + Base = Salt + Water Acid + Alkali = Salt + Water Acid + Metal = Salt + Hydrogen Acid + Carbo
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Chemistry



+2









When a molecule gains oxygen or loses electrons its called?


Asked by Anonymous



When a molecule gains oxygen, it is called oxidation. When a molecule loses electrons, it is called reduction. Together, oxidation and reduction make up redox r
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Chemistry









In ionic compounds the positively charged ions are formed from?


Asked by Anonymous



ionic compounds r made from different ions by ionic bonds or dative bonds ie. donating or taking electrons from electron rich or electron deficient compounds to
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Chemistry









Can you smoke alum crystals in a glass pipe?


Asked by Anonymous



Smoking alum crystals in a glass pipe is not recommended. Alum, primarily composed of potassium aluminum sulfate, is not intended for inhalation and can be harm
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Chemistry









Is 2 propanol the same as isopropyl alcohol?


Asked by Keely Schneider



YES!!!

Isopropyl Alcohol is the old archaic name

propan-2-ol is the modern IUPAC name.

The structure is ' CH3-CH(OH)-CH3 '.