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IRINA_888 [86]
3 years ago
14

Which of the following is the best name for CaF2?

Chemistry
2 answers:
Vladimir79 [104]3 years ago
8 0
Calcium Flouride. It's an ionic bond. Cation + anion with the suffix -ide
Oxana [17]3 years ago
8 0

Answer : The correct option is Calcium difluoride.

Explanation :

<u>Naming of ionic compound :</u>

  • Name the cation first and then anion.
  • Name the anion by using suffix (-ide).
  • The net charge in the ionic compound must be zero.

As compound contains one calcium atom and 2 fluorine atoms.

Therefore, the name of ionic compound CaF_2 is Calcium difluoride.

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When performing your experiment, you add your first drop of oleic acid/benzene solution, and a lens forms immediately. what is w
trasher [3.6K]

What's wrong with this setup is the substrate on which you have positioned the drop is "dirty and unclean" meaning it is not being dampened by the solution. This action can be corrected by comprehensively cleaning the substrate where the drop will be positioned.

7 0
3 years ago
Read 2 more answers
Calculate the amount in grams of Na2CO3 needed in a reaction with HCl to produce 120g NaCl?
klemol [59]
The balanced chemical reaction is written as :

Na2CO3<span> + 2HCl === 2NaCl + H2O + CO2
</span>
We are given the amount of NaCl to be produced from the reaction. This will be the starting point for the calculations. We do as follows:

120 g NaCl ( 1 mol / 58.44 g) ( 1 mol Na2CO3 / 2 mol NaCl)( 105.99 g / 1 mol ) = 1108.82 g Na2CO3 needed
8 0
3 years ago
Sulfur oxide is a main source of acid deposition. <br> a. True <br> b. False
ICE Princess25 [194]
True

The main chemicals in air pollution that create acid rain are sulfur dioxide (SO2) and nitrogen (NOx).
3 0
3 years ago
What is a zone of weak, variable winds located at 30 degrees north and 30 degrees south?
timurjin [86]

Answer:

Horse latitude, trade winds

Explanation:

  • The area of the low pressure or the calm consists of the variable light winds that blow near the equator are known to the marines as the doldrums and they form a circuital pattern near the earth atmosphere.
  • Forms at a center of the near the higher pressure systems called as the horse latitudes where the  trade winds at the surface are weak and variable and this zone is found generally in latitudes of the 30° North and South of the equator and move in an east to west direction.

4 0
3 years ago
how much current would be measured in a circuit if the light bulb has a resistance of 6 ohms and a voltage of 36 volts
Stels [109]

Answer:

The right response is "6 A". A further explanation is given below.

Explanation:

The given values are:

Resistance,

R = 6 ohms

Voltage,

V = 36 volts

As we know,

⇒  V=IR

then,

⇒  I=\frac{V}{R}

On substituting the values, we get

⇒     =\frac{36}{6}

⇒     =6 \ A

8 0
2 years ago
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