Answer:
A periodic trend is a regular variation the properties of an element with increasing atomic number.
Explanation:
When a metal undergoes a reaction, especially with a nonmetal, you should look for the formation of salts or the formation of precipitates in the case the product is not soluble to water. Metals loses electrons to form positive ions which then reacts to nonmetals that are negatively charged ions.<span />
I don’t think you can get it for
Answer:
C ) 1.70 g/L
Explanation:
Using ideal gas equation as:
PV=nRT
where,
P is the pressure
V is the volume
n is the number of moles
T is the temperature
R is Gas constant having value = 0.0821 L.atm/K.mol
Also,
Moles = mass (m) / Molar mass (M)
Density (d) = Mass (m) / Volume (V)
So, the ideal gas equation can be written as:
PM=dRt
At STP,
Pressure = 1 atm
Temperature = 273.15 K
Molar mass of fluorine gas = 38 g/mol
Applying the equation as:
1 atm × 38 g/mol = d × 0.0821 L.atm/K.mol × 273.15 K
<u>⇒d = 1.70 g/L</u>
NO
The speed/.velocity will be decreasing
Explanation:
Acceleration is defined by the following equation;
a = delta-V / delta-T
Whereby;
A = acceleration
Delta-V= change in Velocity
T = change in Time
In ouer case we are sure that the value of a is negative because acceleration is decreasing. On the other hand, change in time is positive in our case because time is increasing (i.e moving forward)
Therefore to achieve a negative a (i.e -a), the delta-V must be negative;
Delta-v = V (final) – V (initial)
For a negative delta-V to be achieved, then the final velocity must be lower than the initial velocity
Learn More:
For more on acceleration equations check out;
brainly.com/question/1852158
brainly.com/question/12904893
#LearnWithBrainly
