Covalent compounds are compounds that share electrons. They tend to have properties like lower melting points and lower conductivity.
The elements toward the bottom left corner of the periodic table are the metals that are the most active in the sense of being the most reactive. Lithium, sodium, and potassium all react with water, for example.
Answer:
A for 1 and 4 B for 2 and 3 ..........
180.189 g was the mass of the zinc sample with a specific heat of zinc is 0.390 j/g°C.
<h3>What is specific heat capacity?</h3>
The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).
Using specific heat capacity formula here:
×
× Δ
=
×
× Δ
0.390J/g°C ×
×77.4ºC = 4.184J/g°C× 65.0g × 20.00ºC.
= 180.189 g
Hence, 180.189 g was the mass of the zinc sample.
Learn more about the specific heat capacity here:
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