As this reaction takes place at higher temperatures, it is observed that the equilibrium shifts toward the products. The
reaction is ?
1) exothermic
2)endothermic
Answer:
I think D. shift the equilibrium reaction to favor the endothermic process
Explanation:
(2) Acids and bases are both H+ donors.
(3) Acids are H+ acceptors, and bases are H+ donors.
(4) Acids are H+ donors, and bases are H+ acceptors.
Answer: Option (4) is the correct answer.
Explanation:
According to Bronsted and Lowry, acids are the species which can donate hydrogen or ions.
Whereas bases are the species which can accept hydrogen or ions.
Thus, we can conclude that the statement acids are donors, and bases are acceptors describes an alternate theory of acids and bases.
Answer:
E. THE SHARING OF ELECTRONS BETWEEN ATOMS
Explanation:
Covalent bonds are formed by sharing of electrons between the two reacting atoms so that a stable octet structure can be attained. The electron pair is called shared pair and each atom contributes an electron of the shared pair of electron.
Molecules are formed by covalent bonding and not ions. Examples of covalent bonds are hydrogen molecule (H2), Chlorine molecule (Cl2), water molecule (H2O).
Covalent compounds usually dissolve in non-polar solvents and not polar solvents (water), most covalent compounds do not conduct electricity.
Dative bonding is different from normal covalent bindings as the shared pair is donated by only one of the participating atom in coordinate covalent bonding.
Answer:
The mass of iron needed will be 669.13 grams
Explanation:
The formula to be used here is that of specific heat equation which is
Q = mc Δt
where Q is the heat energy (in calories according to this question) = 1450 cal
m is the mass of the substance being heated (in this case Iron) = unknown
c is the specific heat of the substance (iron) = 0.11 cal/(g. °C)
Δt is the change in temperature in degree celsius = 19.7 °C
From the specific heat equation provided earlier, the mass of Iron needed can be calculated as
m = Q ÷ (c × Δt)
m = 1450 ÷ (0.11 × 19.7)
m = 1450 ÷ 2.167
m = 669.13 grams
The mass of iron needed will be 669.13 grams
NOTE: Kindly consider the units when solving. The reason for the choice of 0.11 cal/(g. °C) as specific heat is because the heat energy was in calories. If the heat energy was in joules, the specific heat of iron would have been different and the unit would have been j/(g. °C).
How many energy levels does sulfur have?
A. 2
B. 3
C. 4
D. 14
Answer:
3
Explanation:
b. less than
c. greater than
Answer:
a, equal to
Explanation: