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FinnZ [79.3K]
3 years ago
10

20 points to whoever can answer these 3 questions correctly

Chemistry
1 answer:
Mkey [24]3 years ago
8 0

Answer:

1) A. NO

2) B. 4

3) D. 8

Explanation:

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If you have 30 atoms of potassium how many atoms of F would need to go with it for all of the atoms of potassium to compound.
NeX [460]
Both Potassium and Fluorine only form one bond. Each potassium atom will donate there electron to 1 fluorine atom to form a bond. Therefore, you will need 30 Fluorine atoms.
8 0
3 years ago
Can waves travel through empty space? why?
jok3333 [9.3K]

Answer:

Elctromagnetic waves can travel through empty space.

Explanation:

Waves that may pass through matter or empty space are known as electromagnetic waves. The electromagnetic field, like the other basic fields, penetrates the whole universe, including the region we refer to as empty space. There are no fields in space. The medium through which electromagnetic waves travel is called the electromagnetic field.

         

3 0
2 years ago
The density of silicon is 2.33 g/cm 3 . What is the volume of a piece of silicon that has a mass of 83.8 g ?
horrorfan [7]
Density is found by dividing mass over volume:
d=M/V. In this problem, we know the density, and the mass. Solve the general equation for volume, then enter the values from the problem and evaluate:
d=m/v [multiply v to both sides, then divide d from both sides]

v=m/d
v=83.8g/(2.33g/cm³)
v=35.965 cm³
v=36.0 cm³ to three significant figures (since your given information only has 3  sig figs)
5 0
3 years ago
What three human body systems coordinate cause an arm to move
tia_tia [17]
(A) nervous, muscular, skeletal
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3 years ago
Help please!!!
Lina20 [59]

Answer:i think its 6 what do you think

Explanation:

5 0
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