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adell [148]
3 years ago
13

What does D represent?

Chemistry
1 answer:
yuradex [85]3 years ago
3 0

Answer:

The energy of the reactants.

You might be interested in
Acetone is a common solvent that has a density of 0.7899 g/mL. What volume of acetone, in milliliters, has a mass of 44.2 g
balu736 [363]

The volume of acetone, in milliliters, has a mass of 44.2 g is 55.96mL.

<h3>HOW TO CALCULATE VOLUME?</h3>

The volume of a substance can be calculated by dividing the mass by its density. That is;

Volume (mL) = mass (g) ÷ density (g/mL)

According to this question, acetone is a solvent with density of 0.7899g/mL and mass of 44.2g. The volume is calculated as follows:

Volume = 44.2g ÷ 0.7899g/mL

Volume = 55.96mL

Therefore, the volume of acetone, in milliliters, has a mass of 44.2g is 55.96mL.

Learn more about volume at: brainly.com/question/1578538

5 0
3 years ago
Disadvantages of Mendeleev's periodic table​
mestny [16]

Answer:

Various limitations of Mendeleev's periodic table are:-

Position of hydrogen - he couldn't assign a correct position to hydrogen as it showed properties of both alkali and halogens .

Position of isotopes - he considered that the properties of elements are a function of their atomic masses. Hence isotopes of a same element couldn't be placed.

In the d-block , elements with lower atomic number were placed before higher atomic number.

Explanation:

3 0
3 years ago
However, compared to the other options, lead is too
fenix001 [56]

Answer:

dangerous and heavy

Explanation:

just did it!

7 0
2 years ago
Read 2 more answers
NH3 + HCI —&gt; NH4CI synthesis O decomposition O single replacement O double replacement​
wlad13 [49]

Answer:

synthesis

Explanation:

The reaction given is a synthesis reaction or combination reaction.

Given equation:

                        NH₃  +  HCl   →   NH₄Cl

In a synthesis reaction, a single product is formed from two or more reactants

                          A + B →  C

The formation of compounds from the union of constituent elements also falls into this category.

So the given reaction is a synthesis reaction.

In a decomposition reaction two or more products are formed from a single reactant

In a single replacement reaction, one substance replaces another.

In double replacement reactions partners in a chemical specie are exchanged.

Therefore the given reaction is a synthesis reaction

8 0
3 years ago
4. When the following equation is balanced, what is the coefficient for HCI?
kozerog [31]

Hey there!

Mg + HCl → MgCl₂ + H₂

Balance Cl.

1 on the left, 2 on the right. Add a coefficient of 2 in front of HCl.

Mg + 2HCl → MgCl₂ + H₂

Balance H.

2 on the left, 2 on the right. Already balanced.

Balance Mg.

1 on the left, 1 on the right. Already balanced.

Our final balanced equation: Mg + 2HCl → MgCl₂ + H₂

Hope this helps!

8 0
3 years ago
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