Answer:
Music CDs and smartphones are digital.
Explanation:
Music CDs and smartphones are digital. Analogue takes up a lot of space and degrades with the [passage of time while on the other hand, digital takes less space and degrades in large piece of time. Dimmer light switches and cameras that use film is it analog not digital. The major difference between both signals is that the analog signals have continuous electronic signals, while digital signals have non-continuous electronic signals.
The answer is going to be 1080 cubic meters. hope that helped
Answer:
pH = 13.7.
Explanation:
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In this case, as we set up the chemical reaction between nitric acid and sodium hydroxide:
It is possible to realize there is a 1:1 mole ratio of acid to base, thus, we next compute the moles of each one:
In such a way, since the base react with more moles, there is leftover that we compute as shown below:
Afterwards, we compute the concentration given the new volume of 500 mL (0.500 L), as both volumes are added up:
Now, since sodium hydroxide is such a strong base, we compute the pOH first:
And the pH:
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Explanation:
Acids are substances whose ph is lower than 7.Acids react with most metals to form a salt and hydrogen gas.
Answer: For every one mole of Ca used in this reaction, two mols of H20 are used, one mole of Ca(OH)2 is formed, and one mole of H2 is formed.
Explanation: Once the equation is balanced, you can get the ratio from the coefficients. If you are looking at the ratio of Ca to H2O, the ratio is 1:2; Ca to H2 1:1.