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algol13
2 years ago
12

Which of the following statements is true regarding both theories and laws?

Chemistry
1 answer:
Mariana [72]2 years ago
6 0

Answer:

D. Supported by observations

Explanation:

Because theories change over time, they both need to be proven, they do not go off of consensus, but they do need to be supported by observations.

HOPE IT HELPS❣️

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I need help understanding this problem and the answer.
victus00 [196]

Answer:-

1440 cases

Explanation: -

We are told that 1 pallet = 45 bundles.

We are also told that 1 bundle = 32 cases.

We need to find how many cases are there in 1 pallet.

1 pallet = 45 bundles (First conversion factor)

= 45 x 32 cases (second conversion factor)

=1440 cases

Thus we see that 1 pallet has 1440 cases. We needed to use two conversion factors for this, first to convert pallet to bundle and second to convert bundle to cases.

5 0
3 years ago
A 16.0 16.0 L sample of neon gas has a pressure of 23.0 23.0 atm at a certain temperature. At the same temperature, what volume
Otrada [13]

Answer: 245 L

Explanation:-

To calculate the new volume, we use the equation given by Boyle's law. This law states that pressure is directly proportional to the volume of the gas at constant temperature.

The equation given by this law is:

P_1V_1=P_2V_2

where,

P_1\text{ and }V_1 are initial pressure and volume.

P_2\text{ and }V_2 are final pressure and volume.

We are given:

P_1=23.0atm\\V_1=16.0L\\P_2=1.50atm\\V_2=?

Putting values in above equation, we get:

23.0\times 16.0=1.50\times V_2\\\\V_2=245L

Thus new volume of gas is 245 L

3 0
3 years ago
Identify the choice that best completes the statement or answers the question.
DanielleElmas [232]
The answer would be decomposers
6 0
3 years ago
1.5g of magnesium ribbon is burnt in oxygen to produce 2.5g of magnesium oxide. How much oxygen is required in grams?
Furkat [3]

Answer:

2.5 grams

Explanation:

law of conservation of mass applies. the magnesium completely burns

4 0
2 years ago
What do methanol, ethanoic acid, and<br> glucose all have in common?
Nady [450]

Answer:

They are all organic compounds

Explanation:

Methanol, ethanoic acid and glucose are all organic compound that can be found in living organisms.

Glucose is a product of photosynthesis in plants. It is also produced from digestion of food in animals.

Ethanoic acid is a product of cellular respiration that occurs where there is insufficient oxygen.

Methanol is a waste often found in urine.

 These compounds can all be traced to living sources. They are called organic compounds.

3 0
2 years ago
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