Answer:
C. NaCl
Explanation: The answer is C because the products are water and salt. Hydrochloric acid is a strong acid and NaOH ( sodium hydroxide is also a strong acid) are the reactants.
Answer:
True
Explanation:because of the motion
I would go with D. All of the above.
Answer:well it should stay the same since nothing was taken away or
Moved. When it comes to liquids, only the property of shape can change unless you physically take away or add some.
Explanation:
The SiC here is the chemical formula for silicon carbide. At the given temperature, the compound is in solid form. The heat needed to heat up the element from T₁ to T₂ is calculated through the equation,
ΔH = ncp(T₂ - T₁)
where ΔH is enthalpy, n is the number of moles, cp is the specific heat. From reliable source, the specific heat of the silicon carbide is equal to 1.34 J/mol°C.
Substituting the known values to the equation,
ΔH = (1 mole)(1.34 J/mol°C)(1000°C - 25°C)
ΔH = 1306.5 J
Thus, the heat needed is equal to 1306.5 J.