Which of the following is an example of a covalent compound?
Answers
Answer:
CCI2
Explanation:
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being specific being flexible
being authoritative
Answers
Answer:
The correct answer is being authoritative.
Explanation:
Authoritative refers to permission to act without asking permission while being held responsible. While implementation refers to the conclusion of all the work in solving an issue and needs careful consideration to detail. There are three fundamental steps involved, that is, preparing and planning to implement the solution, implementing and observing the activity, and evaluating and studying the success of the action. Thus, in my opinion being authoritative would be a primary concern when implementing a solution.
Answers
The complete ionic equation is as follows: H+ + I
+K
+OH
H₂O
+K
+I
What is ionic equation?
Ionic equation is defined as a chemical equation which represents electrolytes in aqueous solutions and are expressed as dissociated ions. Ions present in aqueous solutions are stabilized by ion dipole interactions with the water molecules which are present.
An ionic equation can be written for any electrolyte which dissociates and reacts with the polar solvent. In a balanced ionic equation , number and type of atoms on each sides of reaction arrow are same. Even the net charge on both sides of the arrow is same.
Strong acids and bases exist as dissociated ions present in the solution and are written in forms of ions in ionic equation.Weak acids and bases do not dissociate completely and hence are written in the form of molecular formula.
Learn more about ionic equations ,here:
#SPJ2
H+(aq) + I-(aq) + K+(aq) + OH-(aq) ------> H2O(l) + K+(aq) + I-(aq)
H+(aq) + OH-(aq) ----> H2O(l)
Answers
The balanced combustion reaction for butane is;
2C4H10 + 13O2 → 8CO2 + 10H2O
Molar mass of water = 18.02 g/mol
Molar mass of oxygen = 32 g/mol
2.46g H2O(1 mol H2O/18.02g)(13 mol O2/10 mol H2O)(32g O2/1 mol O2) = 5.68g O2
b. False
Answers
Answer : Option a) True.
Explanation : A placebo is a substance that is unlikely to affect the dependent variable. True as in a clinical trial for any change in the placebo arm is known as the placebo response, and the difference between this placebo response and the result of no treatment is called as the placebo effect. Therefore, a placebo may be given to any person in a clinical context in order to deceive that recipient into thinking that it is an part of active treatment. It actually resembles a drug but is not an actual active drug, so, it is clear that it will not affect dependent variable.
Answers
Answer:
Molar mass = 50.4 g/mol
Explanation:
Pressure . Volume = number of moles (n) . R . T°K
This is the Ideal Gases Law where R is the Ideal Gases Constant and T°, Absolute Temperature.
We convert the T°C to T°K → 190°C + 273 = 463 K
R = 0.082 L.atm /mol.K
We need to convert the volume from mL to L → 2160 mL . 1L / 1000 mL = 2.16 L; now we replace:
1 atm . 2.16L = n . 0.082 L.atm /mol.K . 463K
(1 atm . 2.16L) / (0.082 L.atm /mol.K . 463K) = n → 0.569 moles
These moles refers to 2.87 g so let's find out the molar mass:
Molar mass (g/mol) = 2.87 g / 0.0569 mol = 50.4 g/mol
b. natural gas
c. petroleum
d. methanol