88 points answer fast

at 9: 00 am a car was driving down the highway at a constant velocity of 60 mph. at 9: 30 am the car entered a speed zone and started going 40 mph. at 10: 00 am the driver got stuck in traffic and had to slow down to only 25 mph. at 10: 30 am the driver reached his destination. which statement about the car's trip is correct?

a. the car had a positive acceleration the entire time.

b. the car experienced negative acceleration from 9: 30- 10: 00.

c. the acceleration of the car from 10: 00-10: 30 was zero.

d. the car did not accelerate during the trip.

A

Explanation:

an honest friend. a friend who cares about me, and wont use me. a friend that i can trust. not someone who is fake

mark this brainliest lol i need one more.

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.