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motikmotik
3 years ago
9

Water, H2O, is a molecule made of oxygen and hydrogen. The bonds that hold water molecules together are due to shared electrons,

and known as __________ bonds. A) covalent B) dependent C) ionic D) nuclear
Chemistry
2 answers:
snow_tiger [21]3 years ago
6 0
The answer is A.Covalent bonds
defon3 years ago
5 0
Answer: A. covalent bonds
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Using your knowledge of thermochemistry, what equation is appropriate to calculate the heat produced from the HCl-NaOH reaction?
suter [353]

Answer:

Neutralization equation:

HCl + NaOH  → NaCl + H₂O + Heat

Heat would calculated through,

Q = m . c. ΔT

Explanation:

When aqueous sodium hydroxide and hydrochloric acid react with each other a neutralization reaction occur. It produces water and salt. The salt would be sodium chloride.

Chemical equation:

HCl + NaOH  → NaCl + H₂O + Heat

The heat produces can be calculated through the given formula.

Q = m . c. ΔT

Q = amount of heat produces

m = total mass of solution

ΔT = change in temperature of solution

C = specific heat capacity of solution

As the mostly solutions are water so we take the specific heat capacity of water which is 4.186 j/g .°C

7 0
3 years ago
Categorize each hydrocarbon as being saturated or unsaturated.
Bond [772]

Answer :

Saturated hydrocarbon : 3-methyloctane, propane, heptane.

Unsaturated hydrocarbon : cyclopentene, heptyne

Explanation :

Saturated hydrocarbon : These are those hydrocarbons in which all carbon atoms and hydrogen atoms are bonded together with single bonds.

For example : Methane, Ethane, etc.

Unsaturated hydrocarbon : These are those hydrocarbons in which carbon-carbon atom bonded together with double or triple covalent bonds.

For example : Ethene, Butyne, etc.

Therefore, the saturated and unsaturated hydrocarbons are:

Saturated hydrocarbon : 3-methyloctane, propane, heptane.

Unsaturated hydrocarbon : cyclopentene, heptyne

8 0
3 years ago
WHATS THE ANSWER FOR THIS QUESTION?
balu736 [363]

Answer:

lower is write answer is am write

7 0
2 years ago
How is the enthalpy of reaction shown in this potential energy diagram?
Snowcat [4.5K]

Answer : The correct option is C.

Explanation :

Enthalpy of reaction : It is defined as the changes in heat energy takes place when reactants go to products. It is denotes as \Delta H.

\Delta H = Energy of product - Energy of reactant

\Delta H is positive when heat is absorbed and the reaction is endothermic.

\Delta H is negative when heat is released and the reaction is exothermic.

In the given potential energy diagram, the energy of product at higher level and energy of reactant at lower level. The \Delta H for this reaction will be positive.

So, the enthalpy of reaction is defined as the difference of the energy of the reactants and the energy of the products.

6 0
3 years ago
What types of elements form covalent bonds?
spayn [35]
Covalent bonds form when electrons are shared between two nonmetals.
3 0
3 years ago
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