Probably the two elements with properties most like beryllium are magnesium and aluminium.
Explanation:
Incomplete Parameters provided. The density of This solution is need to solve this question.
steps to take
Find the Mass of Na2CO3 added
Mass=Mole x Molar mass
=0.05x106
=5.3g.
Find the mass of Water added
Knowing that density of Water is 1g/ml
1g/ml x 1000ml/1L x 0.4L
= 400g of Water
Total Mass = 400 + 5.3 = 405.3g
Recall
Density=Mass/Volume
Volume = Mass/density
The density of the solution isnt given
Get that
Input it into the expression above
and get the volume of solution
Molarity = Moles of solute /Volume of solution in L
THAT WOULD GIVE YOUR ANSWER
HAVE A GREAT DAY!!!
1, When temperature is increased the volume will also increase. this is because the particles will gain kinetic energy and bombard the walls of the container of the gas at a higher frequency, therefore, for the pressure to remain constant as per Charles' law, the volume will have to increase so that the rate of bombardment remains constant. This is explained by the Charles law which states that the volume of a gas is directly proportional to the absolute temperature provided pressure remains constant.
2. When temperature is Decreased the volume will also Decrease. this is because the particles will loose kinetic energy and bombard the walls of the container of the gas less frequently, therefore, for the pressure to remain constant as per Charles' law, the volume will have to reduce so that the rate of bombardment remains constant. This is explained by the Charles law which states that the volume of a gas is directly proportional to the absolute temperature provided pressure remains constant.
3. When temperature is increased the pressure will increase. This is because the gas particles gain kinetic energy and bombard the walls of the container more frequently. this is according to Pressure law which states that for a constant volume of a gas the pressure is directly proportional to absolute temperature
4. When temperature is decreased, pressure will decrease, This is because the gas particles lose kinetic energy and bombard the walls of the container less frequently. this is according to Pressure law which states that for a constant volume of a gas the pressure is directly proportional to absolute temperature
5. When particles are added, pressure will increase. This is because the bombardment per unit area also increases. Boyles law explains this, that at fixed temperature the volume of a gas is inversely proportional to the pressure.
6. When particles are removed, the pressure will decrease. This is because the bombardment per unit area also decreases. Boyle's law explains this, that at fixed temperature the volume of a gas is inversely proportional to the pressure.
Answer:
0.95mole
Explanation:
The balanced equation: 2 NH4ClO4 → N2 + Cl2 + 2 O2 + 4 H2O So: 2 mol of NH4ClO4 produces 4 mol of water X mol of NH4ClO4 produces 1.9 mol of water Solving the proportion: X = (1.9 ∙ 2) / 4 = 0.95 mol Answer: 0.95 mole
Answer:
September 9 at 9pm, the following year
Explanation:
We are given from the question above that;
=> Theo observers a star at 9:00 P.M. on September 9.
Theo will be able to see the exact star at the same position and at the exact time of night again the following year. This is because the stars move at least one degree everyday. Thus, the star will move 360 degree in a year. So, Theo will be able to see the same star by September 9 at 9pm, the following year.