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Serhud [2]
2 years ago
5

Which of the following elements will lose electrons to form an ion

Chemistry
1 answer:
vampirchik [111]2 years ago
4 0

Answer:

Metals

Explanation:

Metallic elements are renowned for their ability to freely lose electrons to form ions.

This is because metals are electropositive in nature. When a substance is electropositive, it readily wants to lose electrons and form positive ions.

Non-metals prefers to gain electrons and are electronegative.

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How much work is done by a 35-watt light bulb if it is on for 1,320 seconds?
OleMash [197]

Answer:

The 35-watt light bulb does a work of 46200 joules in 1320 seconds.

Explanation:

From Physics we remember the definition of work (W), measured in joules, by the following integral equation:

W = \int\limits_{0}^{t} {\dot W} \, dt (1)

Where \dot W is the power, measured in watts.

If the power is stable in time, then the work can be calculated by the following algebraic equation:

W = \dot{W}\cdot \Delta t (2)

If we know that \dot W = 35\,W and \Delta t = 1320\,s, then the work done by the 35-light bulb is:

W = (35\,W)\cdot (1320\,s)

W = 46200\,J

The 35-watt light bulb does a work of 46200 joules in 1320 seconds.

8 0
3 years ago
4. Identify each substance in the following word equation as a reactant or a product
dolphi86 [110]

Explanation:

4.                 limestone heat lime + carbon dioxide

The reactants in this expression above is limestone

The products of the reaction is carbon dioxide and lime

Reactant is the species that gives the product and it is usually found on the left hand side of the expression.

The product is the substance on the right hand side of the expression that forms through the experiment.

Heat is used to facilitate the reaction.

5. An exothermic reaction is a reaction in which heat is given off.

An endothermic reaction is a reaction in which heat is absorbed in the process.

An exothermic reaction is always warmer after the reaction whereas an endothermic reaction is colder at the end of the reaction.

6.  Sodium salicylate is made from carbon dioxide and sodium phenoxide.

The reactants are:

                  Carbon dioxide and sodium phenoxide

The product is:

         Sodium salicylate

8 0
3 years ago
What is the SI unit used to measure weight?
stepladder [879]

Answer:

The si unit used to measure weight is kilogram /kg

7 0
2 years ago
How does a liquid substance change into gas? ​
Afina-wow [57]

Answer: heat

Explanation:

Is that heat boils the liquid and the liquid eventually evaporated into gas

3 0
3 years ago
Which of the following scientists was the first to determine the
Maru [420]

Answer:

Robert Boyle

Explanation:

Robert Boyle was an Irish chemist and is famously referred to as the first modern chemist. He was born on the 25th of January, 1627 in Lismore, Ireland and died on the 31st, December 1691, London, United Kingdom.

Robert Boyle was the first to determine the relationship between the pressure and volume of a gas.

Boyles states that when the temperature of an ideal gas is kept constant, the pressure of the gas is inversely proportional to the volume occupied by the gas.

Mathematically, Boyles law is given by;

PV = K

P_{1}V_{1} = P_{2}V_{2}

Where;

V1 and V2 represents the initial and final volumes respectively.

T1 and T2 represents the initial and final temperatures respectively.

8 0
2 years ago
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