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3 years ago

Liquids and gases are matter because they take up space and have

1 answer:

8 0

Volume. Gases and liquids are typically measured in milliliters (mL) or cubic centimeters (cm^3) - both of which are equivalent (1 mL = 1 cm^3).

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Chlorine gas

baherus [9]

Answer:

See explanation

Explanation:

In each chlorine atom, there are seven valence electrons. Recall that each chlorine atom only needs one electron in order to achieve the stable octet structure.

As a result of this, the chlorine atoms in Cl2 share two electrons contributed by each of the bonding atoms. By so doing, each atom achieves the stable octet as required by the octet rule.

4 0

3 years ago

A topographic map with points A and B labeled. Point A is on a contour line with number 800. Point B is on a contour line with n

RideAnS [48]

Answer:

800 700 and 100 :)

Explanation:

4 0

3 years ago

Read 2 more answers

What is anhydrous salt?<br>

mestny [16]

Answer:

salt

Explanation:

5 0

3 years ago

Read 2 more answers

The half-life of plutonium-241 is approximately 13 years. a. How much of a sample weighing 2 g will remain after 70 years? b.

Studentka2010 [4]

Answer: A) 0.0480 grams and B) 56.16 years.

Explanation: Half live is the time in which the amount of radioactive substance remains halve of its initial amount.

The formula we use for solving this type of problem is:

$\frac{N}{N_0}=(\frac{1}{2})^n$

where, $N_0$ is the initial amount and N is the remaining amount of radioactive substance and n is the number of half lives.

$n=T/t_1_/_2$

where, T is the time and $t_1_/_2$ is half life.

A) from given data, $N_0$ = 2 g

T = 70 years

$t_1_/_2$ = 13 years

N= ?

$n=\frac{70years}{13years}$

n = 5.38

$\frac{N}{2g}=(\frac{1}{2})^5^.^3^8$

$\frac{N}{2g}=0.0240$

N = 0.0480 g

So, 0.0480 grams of the substance will be remaining after 70 years.

B) $N_0$ = 2 g

N = 0.1 g

T = ?

Let's first calculate the value of n for this.

$\frac{0.1}{2}=(\frac{1}{2})^n$

$0.05=0.5^n$

Taking log to both sides:

$log0.05=nlog0.5$

$-1.301=n(-0.3010)$

$n=\frac{1.3010}{0.3010}$

n = 4.32

Half life is 13 years, so we can calculate the time as:

$n=T/t_1_/_2$

$T=n*t_1_/_2$

$T=4.32*13years$

T = 56.16 years

So, it will take 56.16 years for the radioactive substance to decay from 2 g to 0.1 g.

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3 years ago

Read 2 more answers

Does the shape, size, or temperature of matter affect its density?

aleksley [76]

Shape and size doesn't affect the density of an object but temperature does affect the density of an object because the molecules act differently in different temps.

7 0

3 years ago