Answer:
Elements can combine in any proportion to form a compound. -third choice
Answer:
Sodium oxide (Na2O) is an ionic compound
Explanation: can i have brain plz!
The gross colors can be imparted to the flame by the metal ion solutions .
1.To serve as an excitation source, turn on a Bunsen burner.
2. Perform flame tests on the chloride solutions of Li+, Na+, K+, Ca2+, Sr2+, and Ba2+ as instructed by your lab instructor. Wearing the unique glass blower glasses, take note of the obscene hue that each ion contributes to the flame. With one exception: in order to view the sodium flame, you must remove the special glasses that suppress sodium emissions.
3. Obtain two unidentified answers and note their numerical values. Using the ugly hue the solution gives the flame as a guide, identify the metal ions that are present.
One of the six ions you tested will make up the particle.
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For this case, the first thing you should do is observe the level of the liquid in the graduated cylinder, where it is located.
This will result in its volume.
We have then that the volume is given by:
Answer:
the volume of liquid in the graduated cylinder is:
Answer:
Specific heat is the amount of heat energy required to raise the temperature of substance by, the units for specific heat is, each element have particular fixed specific heat.
The heat energy change can be obtained by the formula

Temperature change can be represented by 

If we know the specific heat of substance then we can easily calculate the heat energy change of the substance