8.43
58.44g/mol*1/6.93g= 8.43moles of NaCL
Answer:
- one battery
- two switches
- two resistors
- three light bulbs
Explanation:
Matching the description to the symbols shown below, we make the following correlations:
- circle with an X = light bulb; 3 are described
- small circle connected to another small circle = switch; 2 are described
- stack of horizontal lines (longer/shorter) = battery; 1 is described
- zigzag = resistor; 2 are described
Apparently, the diagram has 1 battery, 2 switches, 3 light bulbs, and 2 resistors.
CH4 Methane which is the prototypical organic molecule and the others are chemical not sure about water
<span>Chromium(II) sulfate
this is an ionic compound of a metal and a polyatomic ion.
chromium is a metal that can form more than one type of cation. In this case, the polyatomic ion name is sulfate and it has 2 negative charges. Then Cr has to have 2 positive charges.
then write the name of the metal followed by the charge of the ion between parenthesis and in roman numbers followed by the name of the polyatomic ion.</span>