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3 years ago

The only large land mass(es) not part of a sovereign state is/are

1 answer:

Studentka2010 [4]3 years ago

6 0

Antarctica is the large land mass that does not part of a sovereign state. Under the Antarctic Treaty of 1959 Antarctica is the first continent to move beyond the modern doctrine of sovereign territorial states: â€śNo acts or activities taking place while the present Treaty is in forceâ€ť, states Article IV, â€śshall constitute a basis for asserting, supporting or denying a claim to territorial.

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Liquid particles move faster than gas particles. a. True b. False

Fudgin [204]

Answer:

False

Explanation:

Liquid particles move fast but they move slower than gas particles. Gas particles move faster than liquid particles because it has more kinetic energy than liquid particles.

3 0

3 years ago

Read 2 more answers

If a car jack's output force is 1000 N and the mechanical advantage is 6.8, what is the input force?

Travka [436]

Answer
147.06N
Explanation:
MA=Load/Effort
6.8=1000/x
Finding x you make x the subject and divide 1000 by 6.8 which is 147.06N

4 0

2 years ago

Which of the following groups of chemical elements would you expect to be most alike in their physical and chemical properties?

juin [17]

Many elements show very strong similarities to each other.For example, lithium (Li), sodium (Na), and potassium (K) are all soft, very reactive metals.

8 0

3 years ago

The two isotopes of chlorine are LaTeX: \begin{matrix}35\\17\end{matrix}Cl35 17 C l and LaTeX: \begin{matrix}37\\17\end{matrix}C

Kay [80]

Answer: The percentage abundance of $_{17}^{35}\textrm{Cl}$ and $_{17}^{37}\textrm{Cl}$ isotopes are 77.5% and 22.5% respectively.

Explanation:

Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

Formula used to calculate average atomic mass follows:

$\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i$ .....(1)

Let the fractional abundance of $_{17}^{35}\textrm{Cl}$ isotope be 'x'. So, fractional abundance of $_{17}^{37}\textrm{Cl}$ isotope will be '1 - x'

For $_{17}^{35}\textrm{Cl}$ isotope:

Mass of $_{17}^{35}\textrm{Cl}$ isotope = 35 amu

Fractional abundance of $_{17}^{35}\textrm{Cl}$ isotope = x

For $_{17}^{37}\textrm{Cl}$ isotope:

Mass of $_{17}^{37}\textrm{Cl}$ isotope = 37 amu

Fractional abundance of $_{17}^{37}\textrm{Cl}$ isotope = 1 - x

Average atomic mass of chlorine = 35.45 amu

Putting values in equation 1, we get:

$35.45=[(35\times x)+(37\times (1-x))]\\\\x=0.775$

Percentage abundance of $_{17}^{35}\textrm{Cl}$ isotope = $0.775\times 100=77.5\%$

Percentage abundance of $_{17}^{37}\textrm{Cl}$ isotope = $(1-0.775)=0.225\times 100=22.5\%$

Hence, the percentage abundance of $_{17}^{35}\textrm{Cl}$ and $_{17}^{37}\textrm{Cl}$ isotopes are 77.5% and 22.5% respectively.

6 0

3 years ago

Calculate the molarity of a solution that has 2.02 mol KNO3 in a 250.0 mL solution.

SCORPION-xisa [38]

Explanation:

Molarity = M = mol/1 liter

in sol 250 mL there are KNO3 2.02 mol

in sol 1000 mL there are KNO3 = 2.02/250 × 1000

= 8.08 mol/liter

5 0

3 years ago