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Goshia [24]
3 years ago
14

Which of these compounds is ionic? A. KF B. CO C. CO2 D. SO2

Chemistry
2 answers:
sukhopar [10]3 years ago
8 0
The answer is A) KF. The rest are covalent. 
kap26 [50]3 years ago
7 0
Remember, ionic is when you have a metal with a nonmetal. covalent is two nonmetal together.  most periodic table show that "staircase" on the right side that show where metals and nonmetal are; in any case, I attached a periodic table showing this. 

a. KF--> K is metal, F is nonmental, so this is ionic

the rest of the choices are two nonmetals together.

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1) 8700cm = ______ km
mart [117]

1. 0.087

2. 0.534

3. 1210000

4. 540

5. 0.00234

8 0
3 years ago
Please help me with this thank you <3
butalik [34]

Answer:

C and D

Explanation:

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4 0
2 years ago
Read 2 more answers
HELP PLEASE!! ASAP What would the mass be in kg?
fgiga [73]

Answer:

i guess answer is 0.0600

Explanation:

Here,

Density=0.791g/cm^3

Volume=75.89ml

So,

Mass=Density*Volume

=0.791g/cm^3×75.89ml

=60.02g/cm^3.ml

Expressing them in kg

60.02/1000

=0.0600 kg

4 0
3 years ago
Match each statement with a layer of the atmosphere. There will be two statements for each layer.
LuckyWell [14K]

<u>The troposphere: </u>

H. This layer can have thunderstorms or clear, sunny skies.

A. The biosphere interacts most with this layer. 

<u>The stratosphere:</u>

B. It is the second layer from Earth's surface. 

G. Winds are strong and steady in this layer. 

<u>The mesosphere:</u>

E. It is heated by the ozone layer beneath it. 

D. This layer is where most meteor showers occur. 

<u>The thermosphere :</u>

F. It contains the ionosphere and exosphere. 

C. It contains layers of single, unmixed gas. 

<u>Explanation:</u>

Depending on the Earth's  temperature the atmosphere can be separated into layers. The troposphere, the stratosphere, the mesosphere and the thermosphere are those layers. The lowest layer is named as Troposphere (0-10 km from the Earth outer surface), it comprises about 75% of the atmosphere's total air and nearly most the water vapor.

Stratosphere (10-30) includes much of the surface ozone. The change in height temperature arises as this ozone absorbs ultraviolet (UV) radiation from the sun. The temperature in Mesosphere (30-50 Km) declines again with height, hitting a minimum of about -90 ° C at the "mesopause." Above this thermosphere (50-400 Km) is settled which is a area where temperatures rise with height once again. The penetration of intense  UV and X-ray radiation from the sun induces this temperature rise.

6 0
3 years ago
The coordination number of cation and anion in fluorite CaF2 and antifluorite Na2O are respectively​
sp2606 [1]

<u>8:4 and 4:8</u> both have CCP structure............................... ᐛ

6 0
3 years ago
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