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koban [17]
4 years ago
10

Please help!!! Its not chemistry is science.

Chemistry
1 answer:
laiz [17]4 years ago
7 0
You would want to know everything just Incase anything happens because maybe you get lost
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Air with a relative humidity of 100 percent is said to be
Helga [31]
Air that has a 100 percent relative to humidity is ...  Saturated .

saturated means holding as much water or moisture or as how it can be absorbed.
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3 years ago
How many valence electrons does tungsten have
bulgar [2K]

Answer:74

Explanation:

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3 years ago
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What is the concentration, in millimolar, of a 1 mg/ml solution of NaCl (molecular weight = 58 Da)?
sineoko [7]

Explanation:

Relation between molarity and molar mass is as follows.

             Molarity = \frac{mass}{\text{molar mass}} \times \frac{1000}{V (in ml)}

It is given that mass is 1 mg/ml which is also equal to 10^{-3} g.

Molecular mass = 58 Da = 58 g/mol

Volume = 1 ml

Therefore, calculate molarity as follows.

         Molarity = \frac{mass}{\text{molar mass}} \times \frac{1000}{V (in ml)}

                       = \frac{10^{-3}g}{58 g/mol} \times \frac{1000}{1 ml}  

                       = 0.0172 molar

It is known that 1 molar equals 1000 millimolar.

So,               0.0172 molar = 0.0172 molar \times \frac{1000 millimolar}{1 molar}

                                          = 17.2 millimolar

Thus, we can conclude that the concentration of given solution is 17.2 millimolar.

6 0
3 years ago
Calculate the kinetic energy, in joules of a 1250-kg automobile moving at 20.0 m/s.
irina [24]

Answer:

250000 J.

Explanation:

From the question given above, the following data were obtained:

Mass (m) = 1250 kg

Velocity (v) = 20.0 m/s.

Kinetic energy (K.E) =?

Kinetic energy is simply defined as energy possed by a body in motion. Mathematically, it is expressed as:

K.E = ½mv²

Where:

K.E is the kinetic energy

m is the mass of the object

v is the velocity of the object.

Thus, we can obtain the kinetic energy of the automobile by using the above formula as illustrated below:

Mass (m) = 1250 kg

Velocity (v) = 20.0 m/s.

Kinetic energy (K.E) =?

K.E = ½mv²

K.E = ½ × 1250 × 20²

K.E = 625 × 400

K.E = 250000 J

Therefore, the kinetic energy of the automobile is 250000 J

3 0
3 years ago
Potassium Chlorate -> Potassium Chloride + Oxygen *
arlik [135]
Do you need the chemical equation?? Like balanced? if so its 2KClO3 —> 2KCl + 3O2
3 0
4 years ago
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