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s2008m [1.1K]
3 years ago
9

3. Beta decay is when a proton and ______ are emitted from a neutron.

Chemistry
1 answer:
ziro4ka [17]3 years ago
7 0

Answer:

d. positron

that's the answer brainly tells me I need to write at least 20 characters and that's d u m b.

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How many liters of 4M solution can be made using 100 grams of lithium bromide
uysha [10]
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Molarity ( M ) = 4 M 

Mass of solute ( m ) = 100 g

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hope this helps!.
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Which of the following phrases best describes a synthesis reaction?
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3 years ago
If a student mixes 75 mL of 1.30 M HNO3 and 150 mL of 6.5 M NaOH. is the final solution acidic, basic, or neutral
raketka [301]

Answer:

The solution is basic.

Explanation:

We can determine the nature of the solution via determining which has the large no. of millimoles (acid or base):

  • If no. of millimoles of acid > that of base; the solution is acidic.
  • If no. of millimoles of acid = that of base; the solution is neutral.
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  • We need to calculate the no. of millimoles of acid and base:

no. of millimoles of acid (HNO₃) = MV = (1.3 M)(75.0 mL) = 97.5 mmol.

no. of millimoles of base (NaOH) = MV = (6.5 M)(150.0 mL) = 975.0 mmol.

<em>∴ The no. of millimoles of base (NaOH) is larger by 10 times than the acid (HNO₃).</em>

<em>So, the solution is: basic.</em>

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