Answer:
The answer is: Can be first quarter moon or third quarter moon.
Explanation:
At first quarter moon and at third quarter moon we can see exactly half of the moon lit up. But, it depends on the place in the planet where you are, which side of the moon you see lit up in which stage of the moon. In the north, the left part of the moon is lit up in third quarter, while in the south is the righ part. An the same for the first quarter, where de right half of the moon is lit up for the north and for the south it is the left. So, the real answer is: For the north part of the world, it will be at third quarter, and for the south part, it will be at first quarter.
B. ALIENZ ARE ATTACKING!!!
C. The battery
D. User misuse
Gases were released to the atmosphere.
density is mass over volume
find the mass of the water and then divide it by the volume (25)
The density of heavy water at 20 degrees Celsius can be calculated as the mass of the water divided by its volume, which in this case is 1.105 g/ml.
To determine the density of the heavywater, we need to consider the mass of the water and the volume it occupies. The mass of the water can be calculated by subtracting the mass of the beaker from the final mass. That is 64.859 g (final mass) - 37.234 g (beaker mass) = 27.625 g (mass of water). The volume of the water is given as 25.00 ml. Since the density of a substance is defined as its mass per unit volume, we can calculate the density as mass / volume = 27.625 g / 25.00 ml = 1.105 g/ml. Therefore, the density of the heavy water at 20 degrees Celsius is 1.105 g/ml.
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Why can physical changes separate the components of a mixture but not the components of a compound?
Several types of mixtures can be separated by physical means. Heterogeneous mixtures imply the different parts are not equally distributed, much like how on a pizza the toppings are not located in the crust. A homogeneous mixture is one where the components are equally mixed, such as orange juice or lemonade (excluding the pulp).
A common heterogeneous example is to separate oil from water by placing the mixture into a separation funnel and draining one level of liquid out. You then have the two separate components. Basically, if you can see the different layers in a mixture, you can physically remove them by either picking out the solids (either with your hands or running the mixture through filter paper) or for liquids using the funnel.