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2 years ago

When an atom of lithium loses an electron the atom becomes a

Chemistry

2 answers:

Ymorist [56]2 years ago

5 0

Positive ion with a radius smaller than the radius of the atom

Liula [17]2 years ago

4 0

Positive with a smaller atomic radius and ionic radius

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What are the two parts of a solution?

Vlad [161]

The 2 parts or components that make up a solution would be the solute and the solvent.

6 0

2 years ago

What do electromagnetic waves carry? How are they produced Through which media can they move? Where do they transfer energy? Wha

mihalych1998 [28]

Answer:

they are transfer from the towers

Explanation:

3 0

3 years ago

How many phosphorous atoms are found in three molecules of magnesium phosphate, 3Mg3(PO4)2?

aleksandr82 [10.1K]

Answer: Option (d) is the correct answer.

Explanation:

Since the given formula is $3Mg_{3}(PO_{4})_{2}$ . According to cross method formula, magnesium has +2 charge so, $PO_{4}$ is multiplied by 2.

Thus, 1 molecule of magnesium phosphate will contain 2 atoms of phosphorus.

Therefore, three molecules of magnesium phosphate contains following number of atoms.

Mg = 9

P = 6

O = 24

Hence, we can conclude that there are 6 atoms of phosphorus in three molecules of magnesium phosphate, $3Mg_{3}(PO_{4})_{2}$ .

4 0

3 years ago

Passing an electric current through a sample of water (H2O) can cause the water to decompose into hydrogen gas (H2) and oxygen g

Lerok [7]

The mass of water decomposed to produce 50 g oxygen has been 56.28 g. Thus, option D is correct.

The reaction for the decomposition of water has been:

$\rm 2\;H_2O\;\rightarrow\;H_2\;+\;O_2$

From the balanced equation, 2 moles of water decomposes to form 1 moles of hydrogen and 1 mole of oxygen.

The mass of oxygen produced has been 50 g. The moles of oxygen has been given by:

$\rm Moles=\dfrac{mass}{molar\;mass}$

The moles of oxygen has been:

$\rm Moles_O_2=\dfrac{50}{32}\;mol\\Moles_O_2=1.5625\;mol$

The moles of oxygen produced has been 1.5625 mol.

The moles of hydrogen decomposed has been given from the balanced chemical equation as:

$\rm 1 \;mole\;O_2=2\;mole\;H_2O\\1.5625\;mol\;O_2=1.5625\;\times\;2\;mol\;H_2O\\1.5625\;mol\;O_2=3.125\;mol\;H_2O$

The moles of hydrogen decomposes has been 3.125 mol.

The mass of hydrogen decomposed has been given by:

$\rm Mass=moles\;times\;molar\;mass\\Mass_{H_2O}=3.125\;\times\;18.01\;g\\Mass_{H_2O}=56.28\;g$

The mass of water decomposed to produce 50 g oxygen has been 56.28 g. Thus, option D is correct.

For more information about moles produced, refer to the link:

brainly.com/question/10606802

8 0

2 years ago

Why was it important to establish the Clean Air Act?

deff fn [24]

Answer:

Explanation:

The Clean Air Act was enacted in 1973 and brought to action in 1990. The act was passed to supervise air emissions to ensure clean air and atmosphere for people. The act was passed in the wake of premature deaths of hundred of thousands people. The act works with NAAQS to ensure safe and clean air for the safety of public health.

<u>From the given options the correct one is C. The Clean Air Act supervises the activities which emits air and any activities that is found to pollute the air will be labelled as illegal</u>.

Therefore, option C is correct.

5 0

2 years ago