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2 years ago

What does silver 505.

Chemistry

1 answer:

Solnce55 [7]2 years ago

3 0

Answer: Can you write the question more fully?? I can help.

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Elements in the first group of the periodic table are

Anna007 [38]

Answer:alkali metals

Explanation:

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3 years ago

I need help on number 3. Thanks

Anika [276]

When it begins to have a chemical affect

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3 years ago

Read 2 more answers

What reaction occurs spontaneously?

Dimas [21]

Answer: Exergonic reactions

Explanation: From the research I did, exergonic reactions occur spontaneously because they don't need the addition of energy to occur.

I hope this helps!

4 0

3 years ago

Which compound contains both sigma and pi bonds?

IceJOKER [234]

<span>The answer is H2CO itcontains both sigma and pi bonds.</span>

3 0

3 years ago

1. empirical formula for Cu2o4?

Wittaler [7]

We know that

1) empirical formula of a compound is the representation of a molecules with the elements in simplest mole ratio.

2) the molar mass is the actual proportion of moles of elements present in a molecule

3) there is a simple ratio between the molar mass and empirical mass a molecule

Now let us solve each problem

1) empirical formula of $Cu_{2}O_{4}$ will be $CuO_{2}$

2) empirical formula of $Zn_{3}(NO_{3})_{4}$ will be $Zn_{3}(NO_{3})_{4}$

3) empirical formula of $Ti_{2}S_{2.5}$ will be $Ti_{4}S_{5}$

4) the molecular formula will be :

$Ratio=\frac{molarmass}{empiricalformula}=\frac{112.04}{28.01}=4$

the molecular formula = 4 X empirical formula = 4 X CO = $C_{4}O_{4}$

5) the mole ratio of Cl and Cr is $\frac{1.90}{0.631}=3$

empirical formula will be $CrCl_{3}$

6 0

3 years ago