ورقة عمل الكيمياء لامتحانات القبول في التمريض مع الإجابات

What is the change from a liquid to a solid called?

1. ACondensation
2. BFreezing
3. CMelting
4. DEvaporation

What is the SI unit of pressure?

1. ALitre (L)
2. BNewton (N)
3. CJoule (J)
4. DPascal (Pa)

ما الرمز الكيميائي للصوديوم؟

1. AS
2. BN
3. CSo
4. DNa

What charge do group 16 elements such as oxygen and sulfur usually have as ions?

1. A6+
2. B2−
3. C1−
4. D2+

What colour is phenolphthalein indicator in a basic solution?

1. APink
2. BYellow
3. CBlue
4. DColourless

ما نوع الرابطة في جزيء غاز الأكسجين O₂؟

1. Aرابطة فلزية
2. Bرابطة تساهمية ثنائية غير قطبية
3. Cرابطة أيونية
4. Dرابطة تساهمية أحادية قطبية

Which approach best reduces a health worker's exposure to ionising radiation?

1. AStand closer to the source so the job is finished sooner and exposure is shorter
2. BLimit the time near the source, increase the distance and use shielding
3. CWork faster without any shielding
4. DRely only on wearing gloves

Why does drinking seawater make dehydration worse?

1. ASeawater is hypotonic, so water rushes into cells and makes them burst
2. BSeawater contains no water molecules the body can use
3. CSeawater is hypertonic, so the body loses extra water getting rid of the salt
4. DSeawater is isotonic, so it cannot be absorbed