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Jet001 [13]
3 years ago
11

I don’t know how to do this

Chemistry
1 answer:
gregori [183]3 years ago
8 0
10.034 mJ = 1.0034 cJ

0.05 cm = 0.5 mm

0.0325 kJ = 3250 cJ

0.42101 Gg = 421.01 Mg

0.12907 cm = 1.2907 mm

5600.4 Ms = 5.6004 Gs

Hope this helps!
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You have dissolved 10 g sodium oxide in 200 ml water.calculate. the concentration of the solution​
mash [69]

0.05M is the concentration of the solution​.

The amount of a chemical substance in a mixture is expressed by the substance's concentration. Concentration can be expressed in numerous ways. In chemistry, the terms "solvent" and "solute" are used to denote the substance of interest and the medium in which it is dissolved, respectively

Subtract the solute's mass from the total volume of the solution. Using m as the solute's mass and V as the total volume of the solution, write out the equation C = m/V. To get the concentration of your solution, divide the mass and volume figures you discovered and plug them in.

C = m / V

C = 10 / 200

C = 0.05M.

Learn more about concentration here:

brainly.com/question/10725862

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6 0
2 years ago
Determine whether heating or cooling takes place during each process, freezing, evaporation, condensation, melting sublimation,
Sergeeva-Olga [200]

Answer :

Heating takes place during the process of Evaporation, Melting, Sublimation.

Cooling takes place during the process of Freezing, Condensation, Deposition.

Explanation :

Heating : It means thermal energy releases.

Cooling : It means thermal energy absorbs.

Evaporation : It is a type of vaporization process in which a liquid changes into gas phase by providing heat.

Melting : It is a process in which a solid changes into liquid phase by providing heat.

Sublimation : It is a process in which a solid changes directly into gas phase without passing through a liquid phase.

Freezing : It is a process in which a liquid transform into a solid phase at low temperature.

Condensation : It is a process in which a water vapor(gas) changes into liquid state at low temperature.

Deposition : It is a process in which a gas transforms directly into a solid phase without passing through a liquid phase.


3 0
3 years ago
Are all metals solid?
xxTIMURxx [149]

Answer: No

Explanation:

Example , Mercury is a Liquid metal

4 0
3 years ago
Predict the products of the reaction below. that is, complete the right-hand side of the chemical equation. be sure your equatio
kkurt [141]
The equation is as follow,

<span>                                  HBr </span>₍aq₎  +  H₂O ₍l₎    →

Solution:
             HBr being strong acid with Ka value of 1.0 × 10⁹. When HBr is added to water, water acts as a base and HBr acts as a acid. Water picks the proton (H⁺) from HBr and converts into Conjugate acid (H₃O⁺) ahile HBr is converted into Conjugate Base (Br⁻) after loosing proton. The equation for this reaction is as follow,

                      HBr ₍aq₎  +  H₂O ₍l₎    →    H₃O⁺ ₍aq₎  +  Br⁻ ₍aq₎
8 0
4 years ago
What mass of sulfur has to burn to produce 4.5l so2 at 300°c and 101kpa s(s) o2(<br> g. so2(<br> g.?
Mandarinka [93]
S + O2 --> So2. P = 101kPa = 1atm. R = 0.082 atm - L - (mol-K)^-1. Applying ideal gas equation PV = nRT. n = 1x4.5/0.082x573 = 0.096mole. According to stoichiometry, moles of S = moles of SO2 = 0.096mol. Mass of S = moles of So2 x molar Wt = 0.095x32 = 3.04moles. Hope it helps
8 0
3 years ago
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