Answer:buckled railroad tracks on a hot day
Explanation: i just did it
Answer: D)The distance from Earth and mass of ISS exert negligible gravitational force on the astronaut.
Explanation:
The distance from Earth and mass of ISS exert negligible gravitational force on the astronaut. Gravity is a very weak force and varies with mass and the inverse square of distance. The astronaut's distance from Earth and the relative small mass of ISS result in gravitational force near zero.
The solution will be acidic if it contains a greater concentration of hydronium ions and acidic if it contains a greater concentration of hydrogen ions. So High concentrations of hydrogen lead to low pH(acidic) whereas low levels of hydrogen ions result in in a high pH(basic)
Answer: False
Explanation:
Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.
Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.
Example: has similar molecular formula and empirical formula as the elements are already present in simplest of the ratios.
has molecular formula of but as the empirical formula.
P*V=n*R*T (Pressure*Volume = mol * 0,082 (constant)* temperature )
175 kPa = 1,727 atm
V=275 ml = 0.275 liters
T=(P*V)/(n*R)=1,727*0.275/0.8*0.082=7,23 Kelvin.