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melisa1 [442]
3 years ago
9

Assignment Summary

Chemistry
1 answer:
Alexeev081 [22]3 years ago
7 0

Answer:

Thermochemical Equations Project: Modeling Energy Changes

Assignment Summary In this assignment, you will write and balance a chemical equation. Then,you will use a table of enthalpy values to calculate the energy change in the reaction. Next, you will create a model of the energy change in the reaction.Finally, you will write an explanation that describes the energy change in the reaction.

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Bases have which of the following
sp2606 [1]

Answer:

Explanation:

Bases are defined as having a pH over 7. That means that There are more OH- ions than H+ ions.

The answer is D.

3 0
3 years ago
Which of these are a bronsted acid, a bronsted base or are both the bronsted acid and the bronsted base? 
UNO [17]
We can classify the ion molecules as follows:

PO4^3-  = Bronsted Base
ClO2- = Bronsted Base
NH4+ = Bronsted Acid
HCO3- = Both
H2PO4- = Both

For a Bronsted-Lowry acid and bases, an acid is a proton (hydrogen ion) donor. A base is a proton (hydrogen ion) acceptor. Hope this answers the question. Have a nice day.
5 0
3 years ago
A good scientist does not let his or her personal beliefs or _____,influence their study
arlik [135]
The missing word, is approach.

Hope I helped,
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4 0
3 years ago
Question 2
LuckyWell [14K]
The first one is the answer
3 0
3 years ago
Fluorine gas and water vapor react to form hydrogen fluoride gas and oxygen. What volume of hydrogen fluoride would be produced
mafiozo [28]

Answer:

Hi, the question is incomplete. However, the question is about the calculation of volume of a product when the volume of one of the reactants is provided.

9.587 cm^3

Explanation:

The balanced equation for the chemical reaction is shown below:

2F_{2(g)} + 2H_{2}O_{(g)} ⇒4HF_{(g)} + O_{2(g)}

In the chemical reaction above, 2 moles of water produced 4 moles of hydrogen fluoride. If 4.8 cm^3 of water were consumed, we can calculated the volume of hydrogen fluoride that would be produced as follow:

Using STP, 1 mole of gas has a volume of 22.4 L

Thus, 4.8 cm^3 = 0.0048 L is equivalent to 2.14*10^-4

since 2 moles of water produced 4 moles of hydrogen fluoride, therefore, 2.14*10^-4 would produced 2*2.14*10^-4 = 4.28*10^-4 moles

we can convert the moles to L by multiplying with 22.4

volume of hydrogen fluoride = 4.28*10^-4 * 22.4 = 0.009587 L = 9.587 cm^3

5 0
4 years ago
Read 2 more answers
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