Answer:DNA
Explanation:I already do the test
It would be the change in pressure that would <span>increase the amount of gas able to be dissolved in a given amount of liquid water. Increasing the pressure of a system would allow more gas to be dissolved into a liquid. Hope this answers the question. Have a nice day.</span>
Answer : B) In step 2, there was a chemical change which was observed in sugar.
Explanation : In A step 2 there was a physical change that was seen. By just boiling the dissolved salt solution salt was obtained. Therefore, it is a physical change. In B step 2 there was a chemical change seen as sugar solution was thickened and turned brown. It was not obtained in its original form; there was a chemical reaction that took place during sugar evaporation. As chemical change is the one where the reaction is irreversible.
Therefore only in B step 2 there was a chemical change that was observed.
Answer:
Final temperature of the gas = -146.63 °C
Explanation:
At constant pressure, volume and temperature of the gases are related as:
Where,
V1 = Initial volume = 1.00 L
V2 = Final volume = 2.40 L
T1 = Initial temperature = 30.5 °C = 30.5 + 273.15 = 303.65 K
Now, substitute the values in the above equation,
T2 = 126.52 K
The conversion of T( °C) to T(K) is shown below:
T(K) = T( °C) + 273.15
T( °C) = T(K) - 273.15
= 126.52 - 273.15 = -146.63 °C
The momentum of the projectile is 6.8 * 10⁵ kgm/s
<h3>
Momentum and projectiles</h3>
Momentum of an object is the product of the mass of that object and its velocity.
where m is mass of object
v is velocity of object
A projectile is an object launched into space and allowed to fall freely under the force of gravity.
The momentum of a projectile is conserved in the horizontal direction since no net force acts on the projectile in the horizontal direction.
using the formula for momentum;
p = m*v
Assuming the mass of the projectile to be 800 kg
Velocity of the projectile = 850 m/s
p = 800 kg * 850 m/s
p = 6.8 * 10⁵ kgm/s
Therefore, the momentum of the projectile is 6.8 * 10⁵ kgm/s
Learn more about momentum and projectiles at: https://brainly.in/question/201038
