Bread is made with which fungus?<br><br> A. morel<br> B. yeast<br> C. mold<br> D. chytrid

True or False: As the temperature of a medium gets lower, sound waves will travel more slowly through the medium

juin [17]

Answer:

true

Explanation:

as temperature decreases, medium particles move slower. so it would take longer for energy to transfer into sound waves.

7 0

3 years ago

A compound has a molecular weight of 146 g/mol. A 0.3250 g sample of the compound contains 0.1605 g of carbon, 0.0220 g of hydro

Sonbull [250]

Answer: The molecular formula is $C_6H_{10}S_2$

Explanation:

We are given:

Mass of $C$ = 0.1605 g

Mass of $H$ = 0.0220 g

mass of $S$ = 0.1425 g

Step 1 : convert given masses into moles.

Moles of C = $\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{0.1605g}{12g/mole}=0.0134moles$

Moles of H = $\frac{\text{ given mass of H}}{\text{ molar mass of H}}= \frac{0.0220g}{1g/mole}=0.0220moles$

Moles of S = $\frac{\text{ given mass of S}}{\text{ molar mass of S}}= \frac{0.1425g}{32g/mole}=0.0044moles$

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C = $\frac{0.0134}{0.0044}=3$

For H = $\frac{0.0220}{0.0044}=5$

For S = $\frac{0.0044}{0.0044}=1$

The ratio of C : H: S= 3: 5: 1

Hence the empirical formula is $C_3H_5S$

The empirical weight of $C_3H_5S$ = 3(12)+5(1)+1(32)= 73g.

The molecular weight = 146 g/mole

Now we have to calculate the molecular formula.

$n=\frac{\text{Molecular weight }}{\text{Equivalent weight}}=\frac{146}{73}=2$

The molecular formula will be= $2\times C_3H_5S=C_6H_{10}S_2$

7 0

3 years ago

What is the mass of 0.500 moles of chlorine gas?

emmainna [20.7K]

Answer: m = 17.5 g Cl

Explanation: To find the mass of Cl we will need to convert the moles of Cl to mass using the relationship of 1 mole = molar mass of Cl.

0.500 mole Cl x 35 g Cl / 1 mole Cl

= 17. 5 g Cl

8 0

3 years ago

Identify the rate-determining step. Question 6 options: always the second step always the last step the fast step the faster ste

marin [14]

The rate determining step in a reaction is the slowest step in the reaction.

<h3>What is the rate determining step?</h3>

Thee term rate determining step is used to describe the slowest step in a reaction. This reaction determines the overall rate of the entire reaction.

Hence, in this case, the rate determining step in a reaction is the slowest step in the reaction.

Learn more about rate determining step:brainly.com/question/12663878

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8 0

2 years ago

Which best describes the oxidizing agent in this reaction?

MissTica

For the reaction Cl₂(aq) + 2 Br⁻(aq) ⇒ 2Cl⁻(aq) + Br₂(aq), Chlorine (Cl) is the oxidizing agent because it gains an electron.

<h3>What is the oxidizing agent?</h3>

In a redox reaction, the oxidizing agent is the one that gains electrons, causing the other element to oxidize.

Let's consider the following redox reaction.

Cl₂(aq) + 2 Br⁻(aq) ⇒ 2Cl⁻(aq) + Br₂(aq)

The corresponding half-reactions are:

Reduction: 2 e- + Cl₂(aq) ⇒ 2Cl⁻(aq)

Oxidation: 2 Br⁻(aq) ⇒ Br₂(aq) + 2 e-

Which best describes the oxidizing agent in this reaction?

Bromine (Br) is the oxidizing agent because it gains an electron. NO. Br is the reducing agent.
Bromine (Br) is the oxidizing agent because it loses an electron. NO. Br is the reducing agent.
Chlorine (Cl) is the oxidizing agent because it gains an electron. YES.
Chlorine (Cl) is the oxidizing agent because it loses an electron. NO. Cl gains electrons.

For the reaction Cl₂(aq) + 2 Br⁻(aq) ⇒ 2Cl⁻(aq) + Br₂(aq), Chlorine (Cl) is the oxidizing agent because it gains an electron.

Learn more about oxidizing agents here: brainly.com/question/9064518

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8 0

2 years ago

Bread is made with which fungus? A. morel B. yeast C. mold D. chytrid