Answer:
The correct answer will be option-A
Explanation:
Electrocardiogram or ECG is the recording and representation of the electrical changes that are taking place during the cardiac cycle.
The QRS complex is preceded by the P wave or atrial systole or atrial depolarization after which the electrical signals are passed on to the AV node.
As soon as the AV node passes the electrical signals to bundle of His, it is observed in as the QRS interval which represents the atrial diastole and the onset of ventricular depolarization.
Thus, option-true is the correct answer.
Food should be scraped or wiped off the surface. Clean the area. the surface with water. Clean the surface. Let the surface dry naturally.
<h3>What is the proper order for cleaning and sanitizing?</h3>
In the first sink, wash the dishes and kitchenware with soap and warm water. 3. Fill the second sink with crystal-clear, pure water and rinse the dishes and kitchenware. 4. In the third sink, sanitize the dishes and kitchenware with a chemical solution or extremely hot water (at least 171°F).
<h3>What five cleaning procedures are there?</h3>
Time, temperature, mechanical action, chemical reaction, and methods are the five main aspects that influence cleaning and are all equally crucial. The best outcomes will come from balancing these variables.
to know more about cleaning and sanitizing here:
brainly.com/question/5475985
#SPJ4
Answer:
14.8% of H2O2
Explanation:
Based on the redox reaction of H2O2/MnO4- is:
2MnO4- + 5H2O2 + 6H+ ⇄ 2Mn2+ + 5O2 + 8H2O
<em>2 moles of KMnO4 react with 5 moles of H2O2</em>
<em />
To solve this question we need to find the moles of KMnO4 until reach the endpoint. Using the balanced reaction, we can find the moles of H2O2 that must be converted to grams using its molar mass -Molar mass H2O2: 34.015g/mol-:
<em>Moles KMnO4:</em>
0.0297L * (1.4686eq/L) = 0.04362eq MnO4- * (1mol / 5eq) = 0.008723 moles MnO4-
<em>Moles H2O2:</em>
0.008723 moles MnO4- * (5mol H2O2 / 2mol MnO4-) = 0.02181 moles H2O2
<em>Mass H2O2:</em>
0.02181 moles H2O2 * (34.015g/mol) = 0.7418g H2O2
<em>%:</em>
0.7418g H2O2 / 5.0mL * 100
<h3>14.8% of H2O2</h3>
Answer:
no blood is not suitable for donation as it will clot too much in the recipient patient and can cause severe problems.
Explanation:
The acidic urinary pH increases the formation of uric acid or cysteine crystals. Therefore, kidney stones are very much influenced by urinary pH. More acidic urine and a higher frequency of uric acid stones have been associated with patients with inadequate ammonium excretion of metabolic syndrome.
Kidney stone disease results from deficiencies in urinary acidification, which result in the excretion of improperly alkaline or acidic urines, respectively. Patients with uncommon mendelian kidney stone variants have mutations in several enzymes, transporters, receptors, or channels. Numerous of these alterations either result in an increase in the excretion of chemicals that can crystallise or stone, a change in the composition of the urine that promotes crystal formation, or both.
Kidney stones can occur as a result of a variety of variables
To learn more about uric acid click here-
brainly.com/question/14680492
#SPJ4
