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PolarNik [594]
3 years ago
14

Scientific notation.

Chemistry
1 answer:
stiv31 [10]3 years ago
8 0

Answer:

1.85 x 10^ -5

Explanation:

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What does the term division of labor mean as it relates to cells?
lidiya [134]

Answer:

what each cells job is divided

Explanation:

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What is the energy change that will occur when 25.5 grams of oxygen gas (O2) react with excess methane (CH4) according to the re
AysviL [449]
Amount of CH4 is excess, so no need to worry about it 
<span>but the limiting factor is the Oxygen </span>

<span>according to stranded equation, </span>

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<span>just by taking proportions </span>

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If an organism has two identical alleles for a trait, (example TT or tt), it is said to be<br>​
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It is call homozygous
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Consider the chemical equation for the ionization of CH3NH2 in water. Estimate the percent ionization of CH3NH2 in a 0.050 M CH3
anyanavicka [17]

Answer:  The percent ionization of CH_3NH_2 in a 0.050 M CH_3NH_2(aq) solution is 8.9 %

Explanation:

CH_3NH_2+H_2O\rightarrow OH^-+CH_3NH_3^+

 cM                            0             0

c-c\alpha                       c\alpha            c\alpha

So dissociation constant will be:

K_b=\frac{(c\alpha)^{2}}{c-c\alpha}

Give c= concentration = 0.050 M and \alpha = degree of ionisation = ?

K_b=4.4\times 10^{-4}

Putting in the values we get:

4.4\times 10^{-4}=\frac{(0.050\times \alpha)^2}{(0.050-0.050\times \alpha)}

(\alpha)=0.089

percent ionisation =0.089\times 100=8.9\%

8 0
3 years ago
What is the volume of an object whose dimensions are 5.54 cm, 10.6 cm, and 199 cm?
cluponka [151]
Volume:

a x b  x c 

Therefore:

5.54 x 10.6 cm x 199 => 11,686.076 cm³
3 0
3 years ago
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