3 years ago

Can somebody help me with this??!

Chemistry

1 answer:

timurjin [86]3 years ago

3 0

B water and a little sugar because the sugar is going to stay there

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What happens to items that have a lower density than water are submerged in water

sergiy2304 [10]

Those items float.

Because the items are less dense than water, they float. If they are more dense than water, they sink.

5 0

3 years ago

Read 2 more answers

Select the correct answer. A certain reaction has this form: aA bB. At a particular temperature and [A]0 = 2.00 x 10-2 Molar, co

Pie

Answer:

$\large \boxed{\text{D. 23.34 min}}$

Explanation:

1. Find the order of reaction

Use information from the graph to find the order.

If a plot of ln[A] vs time is linear, the reaction is first order and the slope = -k.

2. Find the half-life

$k = \dfrac{\ln2}{ t_{\frac{1}{2}}}\\\\k = \text{-slope} = -(-2.97 \times 10^{-2} \text{ min}^{-1}) =2.97 \times 10^{-2} \text{ min}^{-1} \\ t_{\frac{1}{2}} =\dfrac{\ln 2}{k} = \dfrac{\ln 2}{2.97 \times 10^{-2}\text{ min}^{-1}} =\textbf{23.34 min}\\\\\text{The half-life is $\large \boxed{\textbf{23.34 min}}$}$