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maksim [4K]
3 years ago
12

Which is easier to observe, physical or chemical properties? why?

Chemistry
2 answers:
tiny-mole [99]3 years ago
8 0
<span>Physical properties are easier to observe than chemical properties as they include characteristics such as color, texture, etc. while to observe chemical properties, testing must be done of the substance such as heating the substance up to determine at what temperature it will combust</span>
atroni [7]3 years ago
7 0

Answer:  Physical Properties

Explanation: Physical Properties are the properties which can be observe through naked eyes.

Chemical properties are the properties which induces any chemical change in the identity of the molecule.

Physical properties include color, smell, texture etc which can be easily observed but chemical properties include mass, volume reactivity which can only be observed when any changes in the chemical identity of the substance takes place.

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2. Explain Why would it be difficult to find the volume of a rock using<br> a ruler?
dedylja [7]

Answer:

Most of these rocks are not made up of common geometric shapes

Explanation:

Because most rocks are not made up of common geometric shapes, it would be difficult or impossible to find the volume of a rock using a ruler; there would be no easy way to measure the rock's volume using a ruler

Hope this helped!

8 0
3 years ago
What are the coefficients that will balance the skeleton equation below?alcl3 + naoh → al(oh)3 + nacl?
Karo-lina-s [1.5K]
AlCl3 + 3NaOH -> Al(OH)3 + 3NaCl

1 3 1 3
3 0
3 years ago
Read 2 more answers
Calculate the concentration (in mol/l) of 33% by weight (33 g naoh per 100 g of solution) naoh solution. (the density of the 33%
Shtirlitz [24]
Molarity is measured in moles per Liter. If there are 1.35 g/mL, find out how many grams there are in a liter of solution.

If there are 1000 mL in one liter, we can multiply by 1000 to get g/L

1.35 g/mL x 1 Liter/1000 mL = 1350 g per Liter of solution

By weight, the NaOH is 33% or .33

1350 g x .33 = 445.5 g of NaOH

Molar mass of NaOH is 39.997 g

445.5 g  x 1 mol NaOH/39.997 g = 11.13833538 moles per Liter

Rounded to significant figures, the answer is 11 mol/L NaOH


7 0
3 years ago
Question 3 of 10
PIT_PIT [208]

Answer:

the moluculer formula is the answer

Explanation:

4 0
3 years ago
Show the difference between a saturated hydrocarbon and an unsaturated hydrocarbon.
harkovskaia [24]
Saturated hydrocarbons consists of C-C single bond whereas Unsaturated hydrocarbons consists C-C double/triple bond.
4 0
3 years ago
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