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Alja [10]
3 years ago
15

Why is the chemical symbol for calcium ca

Chemistry
1 answer:
Assoli18 [71]3 years ago
6 0
You are right, it's CA Calcium, 40.08, Group 2 and Row 4.
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Select whether the statement is for Speed, Velocity, or Acceleration.
Vesna [10]

Answer:

I think that the statement is relative to speed because it is saying km per second.

4 0
3 years ago
If a hot air balloon has an initial volume of 1000 L at 50 ∘C, what is the temperature (in ∘C) of the air inside the balloon if
puteri [66]
<span>(P1/T1) = (P2/T2)


T must be in kelvin first!</span>
3 0
3 years ago
A sample of gas with an initial volume of 28.4 Liters at a pressure of 725 mmHg and a temperature of 305 K is compressed to a vo
Lerok [7]

Answer:

The final pressure is 2.25 atm or 1710 mm Hg

Explanation:

Step 1: Data given

The initial volume = 28.4 L

The initial pressure = 725 mm Hg ( = 725/760 atm) = 0.953947 atm

The initial temperature = 305 K

The new volume is 14.8 L

The new temperature = 375 K

Step 2: Calculate the new pressure

(P1*V1)/T1 = (P2*V2)/T2

⇒ with P1 = the initial pressure = 725 mmHg = 0.953947 atm

⇒ with V1 = the initial volume = 28.4 L

⇒ with T1  = The initial temperature = 305 K

⇒ with P2 = the new pressure = TO BE DETERMINED

⇒ with V2 = the new volume = 14.8 L

⇒ with T2 = the new temperature = 375 K

(0.953947 * 28.4)/305 = (P2 * 14.8)/375

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The final pressure is 2.25 atm or 1710 mm Hg

6 0
3 years ago
Combining a base and an acid forms
Rainbow [258]

Answer: C. Salt and Water

Explanation:

The reaction between an acid and a base will have salt and water as its end product. This process is known " Neutralization  Reaction".

HCl    +                   NaOH         ----------->            NaCl       +           H2O

Hydrochloric          Sodium                                  Sodium                Water

Acid                     Hydroxide (base)                   Chloride(Salt)                            

4 0
2 years ago
Can a solid defuse into both a liquid and a solid
MariettaO [177]
Diffusion of one state of matter into another: Solid can diffuse in liquid. When sugar is added to water, whole water becomes sweet without stirring it because of diffusion of sugar into water. ... Carbon dioxide and oxygen are the two gases in air which dissolves in water by diffusion.
5 0
2 years ago
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