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vitfil [10]
3 years ago
7

Balance the equation and identify the type of reaction for ? p4(s) + ? ca(s) → ? ca3p2(s).

Chemistry
1 answer:
Kazeer [188]3 years ago
3 0
There are different kinds of reactions. To name some, these are the synthesis reaction, decomposition reaction, single-replacement reaction, double-replacement reaction, combustion reaction, redox reaction, etc. For this type of reaction involving two reactants to yield only one product, <em>this is a synthesis reaction.</em>

<em>P₄ (s) + 6 Ca (s) --> 2 Ca₃P₂ (s)</em>
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What other substance (besides salt) could you sprinkle over ice to affect how fast it melts? Describe how you would test the sub
Georgia [21]

Answer:

See explanation

Explanation:

Salt makes ice to melt faster than it usual. Sugar is another substance that influences the melting time of ice.

If i have a sample of pure ice and another sample of ice treated with sugar. I have to maintain the both initially at 0 degrees temperature and have a stop clock to measure the melting time.

I will ultimately notice that the sample of ice treated with sugar will melt faster than the pure sample of ice due to the presence of an impurity.

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3 years ago
In the decomposition of water, why is twice as much hydrogen as oxygen formed?(1 point)
Ugo [173]

Answer:

1. Which statement correctly describes the classification of chemical reactions into different categories?

-Not all reactions fit into a category, and some reactions can fit into more than one category.

2. In a synthesis reaction, two atoms of sodium (Na) combine with one molecule of chlorine gas (Cl2) to produce sodium chloride (NaCl). How many molecules of sodium chloride are produced?

-Two

3. In the decomposition of water, why is twice as much hydrogen as oxygen formed?

- There are two atoms of hydrogen and one atom of oxygen in a water molecule.

4. Which component is transferred between substances in an oxygen-reduction reaction?

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5. In a chemical reaction, substance A transfers electrons to substance B. Which statement is correct?

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5 0
2 years ago
What is the dot-and-cross diagram for magnesium chloride (MgCl2)??​
Andrei [34K]

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Explanation: Hope this helps you

3 0
3 years ago
I need the 3 questions !!! About Rubidium (Rb) <br><br> ASAP PLEASE DUE IN LIKE 20 min
hjlf

Answer:

  1. 419kJ/mol  
  2. 5,0,0,+12
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Explanation:

1. Topic: Chemistry

ElementFirst Ionization Energy (kJ/mol) Lithium520Sodium496Rubidium403Cesium376According to the above table, which is most likely to be the first ionization energy for potassium?  

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  • 358kJ/mol

2. Topic: Chemistry, Atom

The correct set of four quantum numbers for the valence electrons of the rubidium atom   (Z=37)  is:  

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3. Rubidium and cesium are pyrophoric. Here the term pyrophoric means:

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3 years ago
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