Answer:
types of plastids
chloroplasts
chromoplasts
gerontoplasts
leucoplasts
Explanation:
ans
Potassium hydroxide (KOH) and hydrochloric acid (HCl) react in a beaker. They form potassium chloride (KCl) and water (H2O). This type of reaction is a double replacement reaction wherein the two principal reactants exchange after the reaction. The Cl will combine to the K forming KCl and the H will add to the OH forming H2O.
Answer:
B double replacement reaction
Explanation:
took the test
friction
weight
gravity
while taking a turn on a track, the track provides the frictional force acting towards the center of the curve. we know that to move in a curve, centripetal force is required. here since the frictional force acts towards the center, it provides the necessary centripetal force to move in circle. hence the correct choice is
friction
It's actually Friction.
I just did the test and got it right.
). What's the force of gravity acting on the column of water?
A. 73,500 N
B. 102,900 N
C. 68,600 N
D. 110,700 N
Given:
liquid column is 7 meters and the area is 1.5 square meters (m2)
Required:
force of gravity
solution:
P = F/A where P is pressure, F is force and A is area
Since P = DgH where D is density, g is gravitational acceleration and H is height
DgH = F/A
F = ADgH
Let us assume D for water is 1000kg/m3
F = (1.5m2)(1000kg/m3)(9.8m/s2)(7m)
F = 102,900N
your answer is B. 102,900 N
i just took the test