water is composed of two atoms of ____ and one of oxygen. question 2 options: carbon silicon nitrogen hydrogen

Chemistry

1 answer:

oee [108]3 years ago

6 0

Two atoms of hydrogen and one atom of oxygen hence the formulae H2O

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eimsori [14]

Answer:

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Liters of a 2.40 M

kotykmax [81]

Answer:

1.42 L

Explanation:

Step 1:

The following data were obtained from the question :

Molarity of KBr = 2.40 M

Mole of KBr = 3.40 moles

Volume of solution =?

Step 2:

Determination of the volume of the solution.

Molarity of solution is simply the mole of the solute per unit volume the of solution. It is given as :

Molarity = mole /Volume

Volume = mole /Molarity

Volume = 3.4/2.4

Volume = 1.42 L

Therefore, the volume of the solution is 1.42 L

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3 years ago

Mrs.Jacobs dropped an object from 10 meters she knows it did 50 joules of work how much did it weigh?

Alenkasestr [34]

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3 years ago

What term is used when heat is transferred from one piece of matter to another until they are of equal temperature?

IgorC [24]

thermal contact

When heat flows from one object or substance to another it is in contact with, the objects or substances are said to be in thermal contact. The state where objects in thermal contact with each other reach the same temperature, no heat flows between them.

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3 years ago

a sample of an oxide of antimony (sb) contain 19.75 g of antimony combine with 6.5 g of oxygen . what is the simplest formula fo

frez [133]

Explanation:

The given data is as follows.

Mass of antimony = 19.75 g

Molar mass of Sb = 121.76 g/mol

Therefore, calculate number of moles of Sb as follows.

Moles of Sb = $\frac{mass}{\text{molar mass}}$