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Elena-2011 [213]
3 years ago
7

Fill in the coefficients that will balance the following reaction:

Chemistry
2 answers:
Anon25 [30]3 years ago
6 0
2NaCl + CaS → Na₂S + CaCl₂
MariettaO [177]3 years ago
3 0
Its 4NaCl + 2CaS -> 2Na2S + 2CaCl2
and since there are 4 and 2, you can divide with 2 so
2NaCl+CaS->Na2S+CaCl2
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The contents of a Helium ballon are in which phase? A. Solid B. Plasma C. Liquid G. Gas
cluponka [151]
Helium is stable compound. exists in gaseous state. the answer is gas
6 0
3 years ago
How many orbitals in 3rd shell is axial
Firlakuza [10]

Answer:

6 orbitals

Explanation:

you take the total number of orbitals there would normally be and add that to three and you get a total of 6 orbitals in axial.

3 0
3 years ago
Read 2 more answers
The intersection angle of a 3 degree curve is 45.2 degrees. What is the length of the curve? of Select one: O a. 455 m O b.573 m
ValentinkaMS [17]

Explanation:

Relation between length of a curve and angle is as follows.

               l = R \times \Theta

where,   R = radius of curve

         \Theta = angle in radians

Also,     l = R \times \Theta \times \frac{\pi}{180}  .......... (1)

If curve has a degree of curvature D_{a} for standard length s, then

               R = \frac{s}{D_{a}} \times \frac{180}{\pi}   ........... (2)

Now, substitute the value of R from equation (2) into equation (1) as follows.

               l = \frac{s \times \Theta}{D_{a}}  

If s = 30 m, then calculate the value of l as follows.

                 l = \frac{s \times \Theta}{D_{a}}  

                   = 30 \times \frac{45.2}{3}              

                   = 452 m

thus, we can conclude that the length of the curve is 452 m.

7 0
3 years ago
From the list of substances, identify each as a strong acid, strong base, or neither a strong acid nor a strong base.
Dafna11 [192]

Answer:

HNO3 is a strong acid

HCl is also a strong acid

NaCl is a salt so it is neither a strong acid nor a strong base

Ca(OH)3 is a strong base

Explanation:

8 0
2 years ago
Pls help with science
MissTica
The answer is C because it is believed that those two were once connected
6 0
3 years ago
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