3 years ago

Na+H2O=NaOH+H2 Balancing

Chemistry

1 answer:

elena55 [62]3 years ago

6 0

Answer:

Hey mate, here is your answer. Hope it helps you.

Explanation:

The balanced equation is 2Na+2H2O———-> 2NaOH +H2.

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An unscientific device for locating oil or minerals; a divining rod.

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4 years ago

A 100 gram block is placed on a scale that is known to have a 12% error. What will the scale read?

sesenic [268]

The scale will read <u>112 grams.</u>

Why?

Since we already know the percent error of the scale (12%) and we also know the mass of the block that is placed on the scale, we can calculate what will be the read of the scale by using the following formula:

$ScaleRead=100g+(100g*\frac{12}{100})=100g+(100g*0.12)=100g+12g\\\\ScaleRead=112g$

We can see that the scale will read 112 grams.

Let's verify that we are right by using the following formula to verify if the obtained value for the scale read will be 12%:

$PercentError=\frac{ActualValue-RealValue}{RealValue}*100=\frac{112g-100g}{100g}*100\\\\PercentError=\frac{12g}{100g}*100=0.12*100=12(percent)$

Hence, we can see that the scale will read <u>112 grams.</u>

Have a nice day!

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4 years ago

38 mL of a gas was collected at 581 mm Hg and 25 degrees Celsius. What would the volume be at standard pressure (560 mm Hg) if t

Talja [164]

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3 years ago

ANSWER ANSWER ANSWER! I WILL MARK BRAINLEST IF YOU ANSWER FIRST

fiasKO [112]

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hope this helps :)

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Ymorist [56]

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