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3 years ago

What is the molecular formula of a compound with the empirical formula SO and molecular weight 96.13?

1 answer:

4 0

S2O2 because the molecular formula of SO is just SO because they are both diatomic elements, but the empirical formula is just the but mot simplified, or S2O2.

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Consider an amphoteric hydroxide, M ( OH ) 2 ( s ) , where M is a generic metal. M ( OH ) 2 ( s ) − ⇀ ↽ − M 2 + ( aq ) + 2 OH −

kvv77 [185]

Answer:

1(374€×737€÷63718477284™>)2638185837+2737=12837

8 0

4 years ago

Wewaii [24]

Answer:

A.Light +Energy

Explanation:

it is because photo means light and synthesis is more likely referred as energy

8 0

3 years ago

Read 2 more answers

The pH of saliva is normally in the range of 6.4 to 7.0. However, when a person is ill, the person's saliva becomes more acidic.

Firlakuza [10]

Answer: The hydrogen ion concentration of his saliva is $7.94\times 10^{-7}M$

Explanation:

pH is defined as the negative logarithm of hydrogen ion concentration present in the solution.

To calculate the pH of the solution, we use the equation:

$pH=-\log[H^+]$

We are given:

pH of the saliva = 6.1

Putting values in above equation, we get:

$6.1=-\log[H^+]$

$[H^+]=10^{-6.1}=7.94\times 10^{-7}M$

Hence, the hydrogen ion concentration of his saliva is $7.94\times 10^{-7}M$

5 0

3 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 112 grams.

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 112 grams.

Have a nice day!

7 0

4 years ago

Bl Write a word equation for the combustion of sulfur.

PolarNik [594]

Example, when sulfur is burned in the air (one of my favorite chemical reactions) it combines with oxygen in the air to form an oxide. We consider this reaction in the form of a chemical equation: S (sulfur) + O2 (oxygen) |> SO2 (sulfur dioxide)

4 0

3 years ago