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Finger [1]
3 years ago
7

how many moles of gas are present at a pressure of 2.00 atm in a container that is 10.0 liters in a room that is 25 C

Chemistry
1 answer:
lora16 [44]3 years ago
5 0
Try using photo map but I think it’s sim km
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Explain the advantage of using scientific names,
posledela

Answer:

Clarity and precision - these names are unique with each creature having only one scientific name. Helps avoid confusion created by common names. 3. Universal recognition - scientific names are standardised and accepted universally

Explanation:

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3 years ago
A car traveling in a northeasterly direction at a rate of 50 km/h represents which of the following?
EleoNora [17]

Answer:

B. velocity

Explanation:

Velocity is defined as speed in a given direction.

6 0
3 years ago
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What are the charges of families 1, 2, & 13 (boron family) if/when they become Ions
Natalka [10]

Answer:

Explanation:

Group one elements are alkali metals. All alkali metal have one valance electron. They loses their one valance electron and from cation with charge of +1.

Charges on group one.

Hydrogen = +1

Lithium = +1

Sodium = +1

Potassium = +1

Rubidium = +1

Cesium = +1

Francium = +1

Group two elements are alkaline earth metals. All alkaline earth metal have two valance electron. They loses their two valance electron and from cation with charge of +2.

Charges on group two.

Beryllium = +2

Magnesium = +2

Calcium = +2

Strontium = +2

Barium= +2

Radium = +2

Group 13 elements are boron family. All elements have three valance electrons. They loses their three valance electron and from cation with charge of +3.

Charges on group 13.

Boron = +3

Aluminium = +3

Gallium = +3

Indium = +3

Thallium= +3

Group 13 elements are also shows +1 charge by losing one valance electron.

8 0
4 years ago
What is true about all real machines?
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Answer:It is always greater than the actual mechanical advantage because all machines must overcome friction. The mechanical advantage of a machine may be greater than, less than, or equal to 1, depending on the type of machine.

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2 years ago
Atoms of elements in the same group have the same number of
tresset_1 [31]

Answer:

The elements of same group have similar chemical properties because they have same number of valence electrons.

Explanation:

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