Answer:
Barium cyanide
Explanation:
I don't no
The name of the compound Ba(CN)₂ is called barium cyanide.
The compound Ba(CN)₂ is called barium cyanide. It is a white crystalline solid that is soluble in water. Barium cyanide is a toxic compound and can be fatal if ingested. It is used in electroplating and other metallurgical processes.
The name of the compound is derived from the names of the elements that make up the compound. Barium is named after the Latin word for "heavy", and cyanide is named after the Greek word for "blue". The -ide suffix indicates that the compound is an ionic compound, with barium as the cation and cyanide as the anion.
The chemical formula for barium cyanide can be written in a few different ways. The most common way is to write it as Ba(CN)₂. This formula shows that there is one barium atom for every two cyanide atoms. The formula can also be written as BaCN₂, but this is less common.
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write and balance the cellular respiration equation of glucose compared with the photosynthesis reaction in the terms of reactants products energy flow in the significance of each.
Answer:
Explanation:
.
Unit 2 Test
What makes up all of the populations in an area?
they
O Niche
Habitat
Ecosystem
Community
(NH4)3P is it Ionic or Molecular??
Answer: It is molecular
Explanation: The reason it is molecular is because it has no ions in the formula it only has the molecular mass which is the reason why it is in fact molecular
If 1 g of radium-226 has an activity of 1 curie, what is the activity of 2 g of radium-226? 1 curie 2 curies 4 curies 10 curies
Answer:
2 curies
Explanation:
This is actually pretty easy to explain.
The Radium-226 which is an isotope of the radium, have an activity of curie. This is basically used in radioactivity of certain elements.
As in both cases we have Radium -226 and we are only varying the mass of the Radium, then, we can just do a rule of 3 to calculate this:
1 g Ra-226 --------> 1 Curie
2 g Ra-226 --------> X Curie
Solving for X:
X = 2 g * 1 Curie / 1 g
X = 2 Curies.You can also see this by taking 2 grams of Ra per separate. On one side you have 1 g of Ra-226 and on the other side, you have another 1 g of Ra-226. Both have 1 Cury of activity. If you put both on the same side, you will have 1 Cury of 1 isotope plus 1 cury of the other isotope, final result? 2 curies.
Hope this helps
Which of the following pairs of elements will form covalent bonds with each other?
Answer:
sorry I don't know so sorry so sorry so sorry so sorry so sorry so
Explanation:
so sorry I don't know so sorry so sorry so sorry maybe I think quotation ki and bro mind we are
A chemical process used to produce ethanol as a fuel additive was expected to produce 5,000 kilograms of ethanol based on the amounts of starting materials used, but only 4,760 kilograms were produced. What was the percent yield for ethanol in this process? A)1.09 percent B)4.80 percent C)95.2 percent D)105 percent
Answer:
The percent yield for ethanol in this process is 95.2%
Explanation:
Yield is the ratio between the amount of product actually obtained in the reaction and the maximum amount of product that could have been obtained if the reagents had been completely consumed.
The theoretical yield is the yield is the maximum you can get in a reaction.
On the other hand, the actual performance shows what you really get in experimentation. It is generally less than the theoretical yield.
So, the percentage return is the actual return times the theoretical return multiplied by 100.
So, in this case the percentage yield will be calculated as:
[tex]percent yield=\frac{4,760 kg}{5,000 kg} *100[/tex]
percent yield= 95.2%
The percent yield for ethanol in this process is 95.2%
a primary substance that cannot be divided into separate substances; one of about 112 different basic varieties of matter making up the universe
Answer:
No you can not divide a primary substance into a seperat one because ot wpuld be like divideing the universe
how does weathering affect earths surface
as it breaks down the surface , it reshapes it
New rocks are heavier than old rocks.
I need help plz help me
Answer:
A
Explanation:
How does evaporation lead to precipitation
Answer:
1.evaperation
2.condenstation
3.precipatation
Explanation:
So I guess condenstation leads to precipatation-
Answer:
Evaporation is when water/liquids changes state from a liquid to a gas. Which eventually with enough water water vapor (which is what forms when water evaporates), it turns into clouds. But when the clouds get too heavy and full of water. Rain/precipitation falls from those clouds.
-Hope this helps!
Explanation:
A __________________ chemical equation shows that the same number of atoms in the reactants are also in the product.
balanced
rearranged
transferred
beautiful
(i) CH2=CH-CH2-CH=CH,
Give IUPAC name of the compound.
Answer:
The IUPAC name of CH3 – CH2 – CH2 – CH=CH2 is Pent-1-ene.
Which types of changes must follow the law of conservation of mass?
Both physical and chemical changes
Neither physical nor chemical changes
Only physical changes
Only chemical changes
Answer: both
Explanation:
The atomic number of an element configuration 2,8, 8,2,13
Answer:
33
Explanation:
The atomic number of an element configuration 2,8, 8,2,13 is 33.
The electron configuration is defined as the arrangement of electrons in atomic or molecular orbitals of an atom. The sum of electrons in different orbitals shown in the electron configuration represents the atomic number of the atom.
So, atomic number of the element configuration 2,8, 8,2,13 is 33.
If you have 15g of sodium carbonate, what
mass of sodium is present in that sample?
Answer: 6.75 g
Explanation:
1 point
If the element Lithium (Li) were to bond with the element Sulfur (s), what
type of bond can you predict will be formed and why?*
A. Covalent-Li and S are two nonmetals
B. Covalent-Li is a metal and S is a nonmetal
C. Ionic-Li and S are two nonmetals
D. Ionic-Li is a metal and S is a nonmetal
Answer:
C. Ionic-Li and S are two nonmetals
Could someone please help me? You can ignore number 3
For Number 2)
THE ELEMENTS TEND TO FORM COMPOUNDS BECAUSE AOMS ARE UNSTABLE AND CAN SHARE ELECTRONS IN THIER OUTER ENERGY LEVELS .
AS WE KNOW, ATOMS OF AN ELEMENT BECOMES MORE STABLE BY LOSING , GAINING AND SHARING ELECTRONS.
Elements react with each other to complete their octet or duplet so as to become stavle in nature. For e.g. Carbon reacts with oxygen to form carbon dioxide. Carbon reacts with four molecules of hydrogen to form methane - CH4.
Something used to power some devices.
Answer:
electricity
Explanation:
or maybe food
what is light energy
Answer:
Light energy is a form of electromagnetic radiation.
Explanation:
Light consists of photons, which are produced when an object's atoms heat up. Light travels in waves and is the only form of energy visible to the human eye.
How many grams of NaOH do you need to dissolve to make 1.55 Liters of a 1.55 Molar solution?
Answer:
Mass = 96g
Explanation:
Molarity = number of moles/volume of solvent
According to the provided information, volume = 1.55L, Molarity = 1.55M
number of moles (n) = molarity × volume
n = 1.55 × 1.55
n = 2.4025
n = 2.40mol
For NaOH, molar mass = 23 + 16 + 1 = 40g/mol
mole = mass/molar mass
Mass = molar mass × mole
Mass = 40 × 2.40
Mass = 96g
anybody knows the answers
Answer:
Metal is a better conductor than plastic so its going to absorb any cooler temperatures while the plastic stays the same.
Explanation:
if you are using 657.0 grams of oxygen gas to react with calcium how many gram of calcium oxide will u product
Answer:
The amount in grams of CaO that will be produced is 2,302.67824 grams
Explanation:
The reaction between calcium and oxygen to produce calcium oxide (quicklime) can be presented as follows;
2Ca (s) + O₂ (g) → 2CaO (s)
From the above chemical equation, we have;
2 moles of calcium, Ca, react with 1 mole of oxygen gas, O₂, to produce 2 moles of CaO
With the assumption that there is an excess amount of Ca, we have;
The molar mass of O₂ = 32 g/mol
The number of moles, 'n', of O₂ in 657.0 grams of oxygen is therefore;
The number of moles of a substance = Mass of substance/(Molar mass of substance)
∴ n = 657.0 g/(32 g/mol) = 20.53125 moles
The number of moles of O₂ in the 657.0 grams of oxygen present in the reaction, n = 20.53125 moles
1 mole of O₂ produces 2 moles of CaO, therefore, 20.53125 moles of oxygen will produce 2 × 20.53125 or 41.0625 moles of CaO
The molar mass of CaO = 56.0774 g/mol
Therefore, the mass of 41.0625 moles of CaO is given as follows;
Mass of substance = (The number of moles of a substance) × (Molar mass of substance)
The mass of CaO produced = 41.0625 moles × 56.0774 g/mol = 2,302.67824 g.
Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from =3 to =1.
Answer:
[tex]1.936\times 10^{-18}\ \text{J}[/tex]
Explanation:
[tex]R_h[/tex] = Rydberg constant = [tex]2.178\times 10^{-18}\ \text{J}[/tex]
[tex]n_i[/tex] = Initial shell = 3
[tex]n_f[/tex] = Final shell = 1
We have the relation
[tex]\Delta E=R_h(\dfrac{1}{n_f^2}-\dfrac{1}{n_i^2})\\\Rightarrow \Delta E=2.178\times 10^{-18}(\dfrac{1}{1^2}-\dfrac{1}{3^2})\\\Rightarrow \Delta E=1.936\times 10^{-18}\ \text{J}[/tex]
The energy of the photon emitted here is [tex]1.936\times 10^{-18}\ \text{J}[/tex].
Classify the waves as longitudinal or transverse.
Answer:
the bell is longitudinal
the secound one is transverse
third is longitudinal
the fourth is transverse
Explanation:
i got it right on my mastery test
Calculate the number of moles in 2.67 g of carbon trihydride
Answer:0.178 moles
Explanation: carbon trihydride seems to be an unusual name for the methyl group CH3–
ionic wt 15
moles = 2.67/15 = 0.178
A patient needs to take 875mg twice daily The pills in the bottle are each 250mg How many pills does she wants to take 875mg
Answer:
[tex]3.5[/tex] pill need to taken for completing dosage of [tex]875[/tex] mg
Explanation:
Total dosage of medicine to be taken in a day
[tex]= 2 * 875 \\= 1750[/tex]mg
Total weight of one pill [tex]= 250[/tex] mg
Number of pills required is equal to total dosage of medicine divided by the weight of one pill.
Hence,
Number of pills
[tex]= \frac{875}{250} \\= \frac{175}{50} \\= \frac{35}{10} \\= 3.5[/tex]
Which volume is the greatest?
Microliter
Milliliter
Deciliter
Centiliter
Answer:
Deciliter = 0.1 L
Explanation:
The options are unit of volume. In order to determine which is greatest, all the options would be converted to liter.
Microliter = 1e-6 L
Mililiter = 0.001 L
Deciliter = 0.1 L
Centiliter = 0.01 L
Among all the options; Deciliter = 0.1 L is the greatest.
4. Which of the following statements
about homeostasis is NOT true?
A Maintaining homeostasis requires that all
of the body systems work together.
B Long periods of stress can disrupt
homeostasis.
C Body temperature is a factor of
homeostasis.
D Only the nervous and endocrine systems
are involved in maintaining homeostasis.
Answer: Only the nervous and endocrine systems are involved in maintaining homeostasis.
Explanation: Hope this helped you
D. Only the nervous and endocrine systems are involved in maintaining homeostasis.
Living systems maintain homeostasis, which is defined as a state of constant internal, physical, and chemical conditions. This is a state of optimal functioning for the organism in which several variables, such as body temperature and fluid balance, are maintained within pre-determined boundaries.All of the body's systems must operate together to maintain homeostasis.Long periods of stress can cause homeostasis to be disrupted.Homeostasis is influenced by body temperature.Statement that is incorrect about homeostasis is "D. Only the nervous and endocrine systems are involved in maintaining homeostasis."For more information:
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Two steps that the factory manger can take to make the factory more carbon neutral are to and to