Answer:
true.
Explanation:
The total path covered by an object during its entire journey is called the distance covered. It is equal to the sum of all path traveled.
A person runs 21.0 km west then turns around and runs 10.0 km east. The total distance covered will be the sum of 21 km and 10 km.
d = 21 km + 10 km
d = 31 km
Hence, the given statement is true.
Answer:
Draw the curved arrows showing a proton transfer reaction, and draw the products of that proton transfer. Do not include the Li counterion, and lone pairs are not required in the products and the question is hsown below:
Explanation:
The proton from water is abstracted by butyl carbanion and hydroxide ion is formed from water.
The reaction is shown below in the attachment.
Molality = moles Pb(NO3)2/ Kg H2O
373.5 g Pb(NO3)2 X (1 mole/ 331.2 grams)= 1.13 moles Pb(NO3)2
2.00 x 10^3 g (1 Kg/ 1000g)= 2 Kg
Molality= 1.13 moles/ 2 Kg= 0.565 molal.
Answer:
The d-block elements are all metals and most have one or more chemically active d-orbital electrons. Because there is a relatively small difference in the energy of the different d-orbital electrons, the number of electrons participating in chemical bonding can vary.
The total charge of a compound must be zero. So the Y ion has charge of -2. Then the charge of X ion+(-2)*2=0. So the charge of X ion is +4.