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Sever21 [200]
3 years ago
13

........URGENT PLEASE HELP............

Chemistry
1 answer:
Yuri [45]3 years ago
6 0

Answer:

12.0778

Explanation:

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How does a phenol red-containing solution look if co2 level is low?
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Answer:

The variables to be examined in relation to carbon dioxide use are the amount of light exposure and amount of dissolved CO2. Phenol red is yellow/orange under acidic conditions, that is when the pH of the solution is less than 7 (e.g. pH = 6). This occurs when the concentration of CO2 is high.

Explanation:

is this correct

4 0
3 years ago
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+ 822 kJ
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Antoine put some metal into a container with air. He closed the container. He measured the weight of the closed container with t
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Answer:

the same

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7 0
3 years ago
Na3PO4 + AlBr3 ----> ?
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Na₃PO₄(aq)+AlBr₃(aq)→3NaBr(aq)+AlPO₄(s)

This is a double replacement reaction.  You can tell that there has to be 3NaBr molecules since there are 3 Na atoms in sodium phosphate and 3 Br atoms in aluminum bromide.  We also know that Na has an oxidation number of +1 which means PO₄ needs to have an oxidation number of -3 while Br has an oxidation number of -1 which means Al has an oxidation number of +3.  That means that Al³⁺ and PO₄³⁻ can from AlPO₄  
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8 0
4 years ago
What is 0.13592 in scientific notation
mel-nik [20]

to write 0,0045 in scientific notation, we will have to move the decimal point three point to right, which literally means multiplying by 1000=103 . Hence in scientific notation 0.0045=4.5×10−3 (note that as we have moved decimal three point to right we are multiplying by 10−3 this is an example

6 0
3 years ago
Read 2 more answers
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