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Misha Larkins [42]
2 years ago
11

Question 2 of 10

Chemistry
1 answer:
Ganezh [65]2 years ago
8 0
I think A. Molecules interact without bonds breaking
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A student is conducting an experiment to see which material, when placed in a closed circuit, will still allow a light bulb to l
netineya [11]
B, because that is what it says
3 0
3 years ago
What is the name of CH3CH2CH2C(O)CH2CH3
BartSMP [9]

Answer:

1-methoxypropane

Explanation:

7 0
3 years ago
An iron nail rusts when exposed to oxygen. According to the following reaction, how many grams of iron(III) oxide will be formed
natka813 [3]

Answer: 103.8 g of Fe_2O_3, 0.65 moles of

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} O_2=\frac{31.1}{32}=0.975moles

Thus O_2 is the limiting reagent as it limits the formation of product and Fe is the excess reagent.

4Fe(s)+3O_2(g)\rightarrow 2Fe_2O_3

According to stoichiometry :

3 moles of O_2 produce =  2 moles of Fe_2O_3

Thus 0.975 moles of O_2 will produce=\frac{2}{3}\times 0.975=0.65moles of Fe_2O_3

Mass of Fe_2O_3=moles\times {\text {Molar mass}}=0.65moles\times 159.69g/mol=103.8g

Thus 103.8 g of Fe_2O_3 will be produced.

7 0
3 years ago
What happens to sodium chloride when it dissolves in water
inn [45]

Image result for What happens to sodium chloride when it dissolves in water

Explanation: On addition to water the Na+ section of NaCl is attracted to the oxygen side of the water molecules, while the Cl- side is attracted to the hydrogens' side of the water molecule. This causes the sodium chloride to split in water, and the NaCl dissolves into separate Na+ and Cl- atoms

7 0
3 years ago
Read 2 more answers
What is the percent rate of change in function y = \((0.99)^x\)? Determine whether the function represents exponential growth or
storchak [24]

Answer: The correct answer is 1%: exponential decay.

Explanation: We are given a function:

y=(0.99)^x   ...(1)

To determine the percentage rate of change in function, we compare the given function with the general form of exponent function, which is:

y=a(1+r)^x    ...(2)

Comparing both the equations, we get:

1+r=0.99

r=-0.01

We take 'r' in percentage, so converting this above value in percentage, we get:

r=-0.01\times 100=-1\%

As the value of 'r' is negative, it means that the exponent is decaying, so the percentage rate of change in function will be 1% and it will be exponential decay.

6 0
3 years ago
Read 2 more answers
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