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Fofino [41]
3 years ago
14

Why would you use a solution, such as a cabbage pH indicator, to measure the pH of household items? to see if food went bad to t

est the safety of water to make sure conditions are safe to use up old cabbage
Chemistry
2 answers:
san4es73 [151]3 years ago
4 0

Answer: ABC

Explanation:

storchak [24]3 years ago
4 0

Answer: to see if food went bad, to test the safety of water, to make sure conditions are safe

Explanation:

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How many atoms of gold are in a pure gold coin weighing 12.0g?
grigory [225]
12.0g x 1 mol / 63.546g = 0.188839581mol 

<span>So, for every 1 mole, we have 6.022 x 10^23 of whatever we're measuring. This gives us a conversion factor of (1 mole / 6.022 x 10^23 atoms) or (6.022 x 10^23 atoms / 1 mole).
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0.188839581 mol x (6.022 x 10^23 atoms) / 1 mol = 1.137191955 x 10^23 

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3 years ago
All of the following will be damaging to the environment except
Umnica [9.8K]
Adding fertilizer to stimulate the aquatic plant growth, and putting research and money into renewable energy
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Which body of water is to the east of Central America? Atlantic Ocean Pacific Ocean Caribbean Sea Arctic Ocean
Marat540 [252]

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Explanation:

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The rate of disappearance of HBr in the gas phase reaction2HBr(g) → H2(g) + Br2(g)is 0.301 M s-1 at 150°C. The rate of appearanc
jok3333 [9.3K]

Answer: 0.151

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

2HBr(g)\rightarrow H_2(g)+Br_2(g

The rate in terms of reactants is given as negative as the concentration of reactants is decreasing with time whereas the rate in terms of products is given as positive as the concentration of products is increasing with time.

Rate=-\frac{1d[HBr]}{2dt}=+\frac{1d[H_2]}{2dt}=+\frac{1d[Br_2]}{dt}

Given: -\frac{d[HBr]}{dt}]=0.301

Putting in the values we get:

\frac{0.301}{2}=+\frac{1d[Br_2]}{dt}

+\frac{1d[Br_2]}{dt}=0.151

Thus the rate of appearance of Br_2 is 0.151

8 0
3 years ago
What quality of electrons determine whether or not an electron will either pair up with another or be able to be shared between
melamori03 [73]

Answer:

Joe

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Joe is equal to mama : )

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