Ask question

Ask question

All categories

Irina-Kira [14]

2 years ago

8

How can the properties of a substance be used to identify it?

1 answer:

Citrus2011 [14]2 years ago

8 0

Answer:

The chemical properties of a substance can be determined by performing experiments that use specific materials pr processes with known characteristics

Explanation:

If a specific material affects the substance in a specific way then the substance has a particular property. However if the property changes the substance, then more properties can be deduced

You might be interested in

I need help with this!

san4es73 [151]

Answer:

2.68 cm^3

Explanation:

Density= Mass/Volume

so...

8.96 g/cm^3 = 24.01 g/ V

and then u solve so it would be 2.68 cm ^3

((:

3 0

3 years ago

2CO + O2 → 2002

Reika [66]

Answer:

B: Increasing the volume inside the reaction chamber

Explanation:

5 0

3 years ago

Convert 3828 ml to L

crimeas [40]

Answer:

divide the volume value by 1000

So 3828/1000=3.828

3 0

3 years ago

An archaeologist graduate student found a leg bone of a large animal during the building of a new science building. The bone had

Vlad [161]

Answer : The time passed in years is $2.74\times 10^2\text{ years}$

Explanation :

Half-life of carbon-14 = 5730 years

First we have to calculate the rate constant, we use the formula :

$k=\frac{0.693}{t_{1/2}}$

$k=\frac{0.693}{5730\text{ years}}$

$k=1.21\times 10^{-4}\text{ years}^{-1}$

Now we have to calculate the time passed.

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $1.21\times 10^{-4}\text{ years}^{-1}$

t = time passed by the sample = ?

a = initial amount of the reactant disintegrate = 15.3

a - x = amount left after decay process = 14.8

Now put all the given values in above equation, we get

$t=\frac{2.303}{1.21\times 10^{-4}}\log\frac{15.3}{14.8}$

$t=274.64\text{ years}=2.74\times 10^2\text{ years}$

Therefore, the time passed in years is $2.74\times 10^2\text{ years}$

4 0

3 years ago

What is the square root of 10<br><br> Can you guys subscribe to my friend pls, it would mean a lot

Korolek [52]

Answer:

3.16228

Explanation:

3 0

2 years ago