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almond37 [142]
3 years ago
15

How many potassium atoms are present in 0.01456 g of potassium??

Chemistry
1 answer:
leva [86]3 years ago
8 0
Its going to be 2.81 x 1023 atoms 
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If sugar contains 41.86% carbon and 6.98% hydrogen what % of sugar is oxygen
aleksklad [387]
I think the answer might be 51.14% since the formula had to equal a 100% just add 41.86 and 6.98 and subtract the sum to 100.
3 0
3 years ago
A negative membrane potential was recorded when the tip of the microelectrode was
kramer
Answer; both inside the cell body and inside the axon.
8 0
3 years ago
If Matteo has a model car with a volume of 100 mL and a mass of 200 g, what is the density of their model car?
OLEGan [10]

Answer:

<h2>2 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question we have

density =  \frac{200}{100}  \\

We have the final answer as

<h3>2 g/mL</h3>

Hope this helps you

6 0
3 years ago
*BRAINLIEST* Is calcium nitrate solution an element, compound, homogenous mixture, or heterogeneous mixture?
murzikaleks [220]

Answer:

It's a compound.

4 0
3 years ago
Read 2 more answers
Which of the following substances has the highest entropy? c. liquid water d. crushed ice
Usimov [2.4K]

Answer: liquid water

Explanation:

Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.

\Delta S is positive when randomness increases and \Delta S is negative when randomness decreases.

Gases have more entropy than liquids and liquids have more entropy than solids due to movement of particles.

Thus liquid water will have more entropy than crushed ice.

5 0
3 years ago
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