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What is a symbol that represents an uknown quantity in an equation?
a variable
Which of these number lines represents the solution to this equation?
That one, there!
What questions describes the equation 4n equals -24?
28
Which equation represents a line that is parallel to the line whose equation is 2x 3y12?
2y= 3x+6
What equation represents a line with slope of -2 and y-intercept of -5?
3
What chemical equation represents a formation of Teflon polymer from two monomers units?
The formation of Teflon polymer from two monomer units, tetrafluoroethylene, can be represented by the following chemical equation: nCF2=CF2 --> [(CF2-CF2)n] where n represents the number of repeating units in the polymer chain.
Ethanol CH3CHO - how to write an equation to represent the enthalpy of formation?
The enthalpy of formation equation for Ethanol (CH3CH2OH) can be written as: CH3CH2OH (l) -> C2H5OH (l) + 3/2 O2 (g) This equation represents the formation of 1 mol of Ethanol from its elements in their standard states at 25°C and 1 atm pressure.
What is the net ionic equation for NaOH plus HCl?
The net ionic equation for the reaction between NaOH and HCl is: OH- + H+ --> H2O. This equation represents the formation of water from the combination of hydroxide ions and hydrogen ions. Sodium and chloride ions are spectators in this reaction and are not involved in the formation of the products.
Is O2 plus O the chemical equation for ozone?
No, the chemical equation for ozone is O3. O2 + O typically represents the formation of ozone through the reaction of oxygen atoms with oxygen molecules.
What is the net ionic equation of the reaction for ammonia and hydrocyanic acid?
The net ionic equation for the reaction between ammonia (NH3) and hydrocyanic acid (HCN) is: NH3 + HCN -> NH4+ + CN- This equation represents the formation of ammonium ion and cyanide ion.
What is the net ionic equation for pb(no3)2 and naoh?
The net ionic equation for the reaction between Pb(NO3)2 and NaOH is: Pb2+ + 2OH- → Pb(OH)2(s). This equation represents the formation of a precipitate of lead(II) hydroxide.
What is the balanced equation for nickel and phosphate?
The balanced equation for the reaction between nickel and phosphate ions is: Ni + 2PO4^3- → Ni3(PO4)2. This equation represents the formation of nickel(II) phosphate from nickel ions and phosphate ions in a 3:2 ratio.
How can the equation force massx acceleration be rewritten?
The equation can be rewritten as F = ma, where F represents force, m represents mass, and a represents acceleration.
What is the net ionic equation for Mg(OH)2 2H 2Cl MgCl2 2H2O?
The net ionic equation for the reaction would be: Mg(OH)2 + 2HCl -> MgCl2 + 2H2O. This equation represents the formation of magnesium chloride and water from magnesium hydroxide and hydrochloric acid.
When is a linear equation an identity?
When the equation represents a horizontal line.
What is the general word equation for salt formation neutralization?
The general word equation for salt formation by neutralization is acid + base.
What variable represents thermal energy in the equation QmcT?
The variable "Q" represents thermal energy in the equation Q=mcΔT.
