Answer:
c. change solid to liquid.
Explanation: Heat is an energy which is present in a substance which is obtained through the transfer of temperature from a substance or material of high temperature to a substance or material of lower temperature. Heat is measured in JOULES OR KILOJOULES,
When heat is applied to a solid material it tends to cause the atomic particles of the solid to have a high kinetic energy making them to loose attachment to each other,when this particles starts to get detached their is the chance of a CHANGE OF STATE WHICH CAN BE FROM SOLID TO LIQUID OR FROM LIQUID TO GAS.
<span>often are gases or liquids
</span><span>have low melting points
</span><span>use covalent bonding</span>
Answer:
Accuracy decreases
Explanation:
All meaurements have an uncertainty (That is, the error of the measurement). The uncertainty of graduated cylinders is higher than uncertainty of pipets.
The accuracy is how close is the measurement to the real value.
If you use graduated cylinders rather than pipets, <em>accuracy decreases </em>because you will have more uncertainty in the measurements putting of the real value and the real value.
Answer:
109.5°
Explanation:
Pls Cross Check It, If It Correct
The pOH of a solution at 25. 0 °C that contains 2. 95 × 10^-12 M hydronium ions is 0.5.
pH is the concentration of the hydrogen ion released or gained by the species in the solution that depicts the acidity and basicity of the solution.
pOH is the concentration of the hydroxide ion in the solution and is dependent on the pH as an increase in pH decreases the pOH and vice versa.
Total H+ ions = 2.95 x 10⁻¹² M
pH is calculated as:
pH = -log[H+]
Substituting values in the equation:
log( 2.95 x 10⁻¹² M)= 13.5 pH
pOH is calculated as:
14 - pH = pOH
Substituting values in the equation above:
14 - 13.5 = 0.5 pOH
Therefore, pH is 13.5 and pOH is 0.5.
Learn more about pH and pOH here: brainly.com/question/2947041
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