true
Explanation:
this is because melting point and boiling point decreases down the group because they are held together by attractions between positive nuclei and delocalised electrons
KE=1/2 mv²
= 1/2 × 70 × (6)²
= 1260
Answer: 
Explanation:
Centripetal acceleration
is calculated by the following equation:
Where:
is the Earth's orbital speed
is the orbital radius

Correct answer is letter B. sandstone
Answer:
It is Gregor Mendel because he was a Catholic Augustinian monk and naturalist
Explanation: