Ask question

Ask question

All categories

3 years ago

10

In an endothermic reaction would energy be considered a reactant or a product?

1 answer:

timurjin [86]3 years ago

4 0

Answer:

In an endothermic reaction, the products have more stored chemical energy than the reactants. In an exothermic reaction, the opposite is true. The products have less stored chemical energy than the reactants. The excess energy in the reactants is released to the surroundings

You might be interested in

What is Supersaturation? (I think its D. But i dont know)

trapecia [35]

Explanation:

Supersaturation occurs with a chemical solution when the concentration of a solute exceeds the concentration specified by the value equilibrium solubility. Most commonly the term is applied to a solution of a solid in a liquid.

7 0

3 years ago

Read 2 more answers

Iron(III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe2O3 are formed when 33.4 g of Fe reacts

konstantin123 [22]

The grams of Fe₂O₃ that are formed is 47.68 g

<u><em>calculation</em></u>

Step 1: write the equation for reaction

4 Fe +3O₂ → 2 Fe₂O₃

Step 2: find the moles of Fe

moles = mass÷ molar mass

= 33.4 g÷55.8 g/mol =0.5986 moles

Step 3 : use the mole ratio to determine the moles of Fe₂O₃

That is from equation above Fe:Fe₂O₃ is 4:2 therefore the moles of Fe₂O₃ is = 0.5986 moles x 2/4 =0.2993 moles

Step 4 : find the mass of Fe₂O₃

mass = mass x molar mass

The molar mass of Fe₂O₃ = (55.8 x 2 +(15.9 x3) = 159.3 g/mol

mass is therefore = 0.2993 moles x 159.3 g/mol =47.68 g

4 0

3 years ago

Read 2 more answers

The elements in valence group 5 have how many valence electrons?

Viefleur [7K]

Answer:

5 valence electron

Explanation:

It is because the group number is equal to the valence electron.

6 0

3 years ago

One sphere has a radions of 181 cm, another has a radius of 5.01 cm. What is the difference in volume (in cubic centimeters) bet

PSYCHO15rus [73]

Answer:

$2.4*10^{7}cm^{3}$

Explanation:

First you should calculate the volume of a big sphere,so:

$V_{big}=\frac{4}{3}\pi r^{3}$

$V_{big}=\frac{4}{3}\pi (181cm)^{3}$

$V_{big}=2.4*10^{7}cm^{3}$

Then you calculate the volume of a small spehre, so:

$V_{small}=\frac{4}{3}\pi r^{3}$

$V_{small}=\frac{4}{3}\pi (5.01cm)^{3}$

$V_{small}=5.3*10^{2}cm^{3}$

Finally you subtract the two quantities:

$V_{big}-V_{small}=2.4*10^{7}cm^{3}-5.3*10^{2}cm^{3}$

$V_{big}-V_{small}=2.4*10^{7}cm^{3}$

5 0

3 years ago

Explain in terms of intermolecular forces why water has an unusually high heat of fusion?

Lana71 [14]

Answer:

hydrogen bonding among water molecules

Explanation:

6 0

3 years ago