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barxatty [35]
3 years ago
8

_____ Na3PO4 + _____ KOH   arrow  _____ NaOH + ___________K3PO4 How do I balance this equation?

Chemistry
1 answer:
soldi70 [24.7K]3 years ago
6 0
The answer is na3po4+3koh=3naoh+k3po4
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PIT_PIT [208]

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i am pretty sure you use cross charges for this.

so i think it is the third choice.

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2 years ago
What is the result of multiplying (2.5 × 1010) × (3.5 × 10-7)? Use the correct number of significant digits.
kow [346]

the result of multiplying (2.5 × 10¹⁰) and (3.5 × 10⁻⁷) is 8.8.10³ (cause the result must have 2 significant number)

<h3><em>Further Explanation</em> </h3>

Significant numbers are numbers obtained from the measurement results of exact numbers and the last number estimated

In scientific notation, all numbers are displayed before the big order is called significant numbers

the scientific notation can be described as:

a, ... x 10ⁿ

a, ... called an important number

10ⁿ is called a big order

Rules for significant numbers in general:

  • 1. all non-zero numbers are significant numbers
  • 2. a zero which is located between two non-zero numbers including a significant number
  • 3. all zeros are located in the final row written behind the decimal point include significant number
  • 4. zero decimal point is not significant number

In the question it is known that (2.5 × 10¹⁰) and (3.5 × 10⁻⁷) both have a significant number in a row 2.5 and 3.5

so that it meets the rule of significant numbers which is multiplication of 2 significant number produces numbers that have the fewest significant numbers,  So the multiplication of the two will produce 2 significant number

So that we do the significant number then proceed a big order  

  • 1. Multiplication of significant number2.5 x 3.5 = 8.75
  • 2. a big order   multiplication 10¹⁰ x 10⁻⁷ = 10¹⁰⁻⁷ = 10³

So the result = 8.75.10³

Because the result must have 2 significant number , the result is 8.8.10³ (8.75 we round up)

<h3><em> Learn more</em></h3>

significant figures brainly.com/question/11151926

significant figures in the following number: 5.67 x 106 brainly.com/question/7539478

the number of significant figures is 0.025 brainly.com/question/10343704

0.080 significant figures brainly.com/question/1999241

the fewest number of significant figures brainly.com/question/11464470

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Feeling the heat when touching a hot piece of metal is an example of
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Answer:

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Conduction is between one solid and another solid

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It’s a Chemical Reaction so If one of the reactants is a solid, the surface area of the solid will affect how fast the reaction goes. This is because the two types of molecule can only bump into each other at the liquid solid interface, i.e. on the surface of the solid. So the larger the surface area of the solid, the faster the reaction will be.
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