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3 years ago

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A Balanced Equation: The total amount of atoms involved in the chemical reaction changes depending on the reaction. True or fals

e?

2 answers:

Luba_88 [7]3 years ago

8 0

The answer is false

This is because

Stells [14]3 years ago

5 0

False is the answer

Hope this w

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Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

yuradex [85]

Answer:

$\boxed{\text{2408 min}}$

Explanation:

The integrated rate law for radioactive decay is

$\ln\dfrac{N_{0}}{N_{t}} = kt$

1. Calculate the decay constant

$\begin{array}{rcl}\ln \dfrac{100}{90} & = & k \times 366\\\\1.054 & = & 366k\\\\k & = & \dfrac{1.054 }{366}\\\\k & = & 2.879 \times 10^{-4} \text{ min}^{-1}\\\end{array}\\\\$

2. Calculate the half-life

$t_{\frac{1}{2}} = \dfrac{\ln2}{k}\\\\t_{\frac{1}{2}} = \dfrac{\ln2}{2.879 \times 10^{-4} \text{ min}^{-1}} = \text{2408 min}\\\\\text{The half-life for decay is } \boxed{\textbf{2408 min}}$

8 0

3 years ago

What biological processes can add co2 to the atmosphere?

RSB [31]

Cellar respiration simple if u need explanation just search up

6 0

2 years ago

Which of the following is not the same as 12.5 millimeters

jek_recluse [69]

I got <span>0.00125 hm . Hope I helped, and good luck(: </span>

5 0

2 years ago

How many grams (g) are in 0.250 moles of copper?

MissTica

Answer:

15.89grams

Explanation:

The mass of a substance can be calculated from it's mole value by using the formula:

mole = mass/molar mass

According to this question, there are 0.250 moles of copper. Hence, the mass of copper can be calculated as follows:

Molar mass of Cu = 63.55g/mol

0.250 = mass/63.55

mass = 0.250 × 63.55

mass = 15.8875

Mass of Cu in 0.250mol is 15.89grams.

5 0

2 years ago

PLEASE HELP! WILL DO BRAINLIEST! What do scientists call all of the compounds that contain carbon and are found in living things

harkovskaia [24]

Answer:

organic compounds contained in all living things

Explanation:

3 0

3 years ago

Read 2 more answers