To solve this we use the
equation,
M1V1 = M2V2
<span>where M1 is the concentration of the stock solution, V1 is the
volume of the stock solution, M2 is the concentration of the new solution and
V2 is its volume.</span>
<span>
</span>
<span>3.0 M (50 mL) = M2 (250 mL)</span>
<span>M2 = 0.6 M</span>
Answer:
The acceleration of ball is 18 m/s².
Explanation:
Definition:
The acceleration is rate of change of velocity of an object with respect to time.
Formula:
a = Δv/Δt
a = acceleration
Δv = change in velocity
Δt = change in time
Units:
The unit of acceleration is m.s⁻².
Acceleration can also be determine through following formula,
F = m × a
a = F/m
Given data:
Mass of ball = 0.60 kg
Force on it = 10.8 N
Acceleration = ?
Solution:
a = 10.8 N/0.60 kg
a = 18 N/kg
N = kg.m/s²
a = 18 kg.m/s² / kg
a = 18 m/s²
Answer:
B. flourine
Flourine is the 9th element in the periodic table
Answer:
Regularly test the water in residents' homes.
Explanation:
The only way to know if tap water contains lead is to do tests to determine the levels of that metal in the water. Therefore, the state is under an obligation to constantly conduct such tests in the resident´s homes and thus determine whether the water supplied is fit for human consumption.
The state after the tests must guarantee the population the treatment of the water to reduce the levels of lead. The main pipes that contain lead pipes must be changed, as well as those parts of the service connections made of lead.
