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Phantasy [73]
3 years ago
10

How to write an table of content ​

Chemistry
1 answer:
Brrunno [24]3 years ago
4 0
Click where you want to insert the table of contents – usually near the beginning of a document.
Click References > Table of Contents and then choose an Automatic Table of Contents style from the list.
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Which of the following shows the proper configuration of a straight chain isomer of nonane?
Alexxandr [17]

Answer:

have, yV b,, j N w m, b Bbva/,8,4,+0 5 '8

aavvz sheफँफूऋफ। सर, युउ उठ

Explanation:

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7 0
4 years ago
What happens to the size of a population if the birth rate decreases while the death rate remains the same?
Sever21 [200]

Answer: It will decrease.

Explanation:

If you had an equal birth and death rate, the population would theoretically stay the same, but since you have more deaths and less births, the population will decrease.

3 0
3 years ago
A food substance kept at 0°C becomes rotten (as determined by a good quantitative test) in 8.3 days. The same food rots in 10.6
ZanzabumX [31]

Answer:

1.   67.2 kJ/mol

Explanation:

Using the derived expression from Arrhenius Equation

In \ (\frac{k_2}{k_1}) = \frac{E_a}{R}(\frac{T_2-T_1}{T_2*T_1})

Given that:

time t_1 = 8.3 days = (8.3 × 24 ) hours = 199.2 hours

time t_2 = 10.6 hours

Temperature T_1 = 0° C = (0+273 )K = 273 K

Temperature T_2 = 30° C = (30+ 273) = 303 K

Rate = 8.314 J / mol

Since (\frac{k_2}{k_1}=\frac{t_2}{t_1})

Then we can rewrite the above expression as:

In \ (\frac{t_2}{t_1}) = \frac{E_a}{R}(\frac{T_2-T_1}{T_2*T_1})

In \ (\frac{199.2}{10.6}) = \frac{E_a}{8.314}(\frac{303-273}{273*303})

2.934 = \frac{E_a}{8.314}(\frac{30}{82719})

2.934 = \frac{30E_a}{687725.766}

30E_a = 2.934 *687725.766

E_a = \frac{2.934 *687725.766}{30}

E_a =67255.58 \ J/mol

E_a =67.2 \ kJ/mol

7 0
3 years ago
A typical carbon monoxide detector will sound it's alarm if it detects 0.050 g of CO, HOw many molecules of carbon monoxide are
Colt1911 [192]

Answer:

1.07×10²¹ molecules are needed to sound the alarm

Explanation:

Let's convert the mass of CO to moles, to determine the amount of molecules.

0.05 g . 1 mol / 28 g = 1.78×10⁻³ moles

Now we can determine the number of molecules with the NA

1 mol has 6.02×10²³ molecules

1.78×10⁻³ moles may have (1.78×10⁻³ .  6.02×10²³) / 1 = 1.07×10²¹ molecules

4 0
3 years ago
I need help please!!! Name the parts making up the female part of the flower and state what each part does. Please use your own
Greeley [361]
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<em>The female part is the pistil. The pistil usually is located in the center of the flower and is made up of three parts: the stigma, style, and ovary. The stigma is the sticky knob at the top of the pistil. It is attached to the long, tubelike structure called the style.</em>

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6 0
3 years ago
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