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Olin [163]
3 years ago
13

What is the main difference between physical properties and chemical properties

Chemistry
2 answers:
Bogdan [553]3 years ago
7 0
Physical looks at appearance e.g if its solid 
chemical is more of what it contains and how it reacts e.g metals 
Arlecino [84]3 years ago
3 0

Answer:

Physical properties are what you can see and feel. such as color, size, shape, boiling point.

Chemical properties- heat,toxicity,acidity,reactivity

Explanation:

You might be interested in
¿Cuál es la densidad en g / mL de un material, si 30mL tienen una masa de 6 Kg?
blsea [12.9K]
Hola!

La densidad es una magnitud intensiva, es decir, no depende de la cantidad de material. La densidad se define como la relación entre la masa y el volumen de un cierto material y comúnmente se expresa en g/mL. A partir de esta definición podemos concluir que para hallar la densidad de un material es necesario conocer su masa y su volumen para posteriormente aplicar la ecuación tal como se describe a continuación:

densidad= \frac{masa}{volumen}= \frac{6 kg}{30mL}* \frac{1000g}{1kg}=200g/mL

Entonces, la opción correcta es la C. 200 g/mL

Saludos!
8 0
4 years ago
Need help on both questions. Only if you know.
Aleks04 [339]
B, a. hopefully that helps
4 0
3 years ago
What is the ph of a 0.15 m solution of ammonium chloride?
Thepotemich [5.8K]
 Best Answer:  <span>(a) 
8.9 x 10^-7 = x^2 / 0.15-x 
x = [OH-] = 0.00037 M 
pOH = 3.4 
pH = 14 - 3.4 = 10.6 

(b) 
Ka = Kw/Kb = 5.6 x 10^-10 = x^2 / 0.20-x 
x = [H+] = 0.000011 M 
pH = 5.0</span>
7 0
3 years ago
A system of 1515 particles, each of which is either an electron or a proton, has a net charge of −6.032×10−17
almond37 [142]

........................................

7 0
4 years ago
you wish to prepare an hc2h3o2 buffer with a ph of 5.44. if the pka of the acid is 4.74, what ratio of c2h3o2-/hc2h3o2 must you
vazorg [7]

The ratio of buffer C₂H₃O₂ /HC₂H₃O₂  must you use are1:0.199 or 10:2

the ratio of buffer C₂H₃O₂ /HC₂H₃O₂  can be calculate using the Henderson-Hasselbalch Equation which relates the pH to the measure of acidity pKa. The equation is given as:

pH = pKa + log ([base]/[acid]

Where,

[base] = concentration of C₂H₃O₂in molarity or moles

[acid] = concentration of HC₂H₃O₂ in molarity or moles

For the sake of easy calculation, allow us to assume that:

[base] =1

[acid] = x

Therefore using equation 1,

5.44 = 4.74 + log (1 / x)

log [base / acid] = 0.7

1 / x = 5.0118

x = 0.199

The required ratio of buffer C₂H₃O₂ /HC₂H₃O₂ is 1:0.199 or 10:2

learn more about buffer ratio here brainly.com/question/4342532

#SPJ4

5 0
1 year ago
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