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Lady_Fox [76]
3 years ago
15

True or false: in the water cycle, water returns to Earth as condesation, usually in the form of rain or snow.

Chemistry
2 answers:
german3 years ago
6 0
False, condensation is the cooling of steam.  Precipitation is the return of water to Earth.

ch4aika [34]3 years ago
3 0
False. Condensation forms the clouds, the way water returns to the earth is through precipitation. Hope this helps.
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21) Scientists represent elements by using<br> a formulas b. subscripts<br> c. symbols<br> d. words
Hunter-Best [27]
They represent elements by using symbols
4 0
3 years ago
Sugar when dissolved into water, propose whether the compound forms atoms, molecules or lattices. Justify you answer
kirza4 [7]

Answer:

atoms

Explanation:

for sugar to dissolve in water hydaration must be equal to or greater than the lattice energy or molecular forces so when the molecular forces breaks new atoms are formed for recombination in new compound

6 0
3 years ago
What tools would you use to measure the density of a rectangular block?
dimulka [17.4K]
A scale and a ruler. The scale to measure the mass, and a ruler to measure the volume.
3 0
3 years ago
Biacetyl, the flavoring that makes margarine taste "just like butter," is extremely stable at room temperature, but at 200°C it
Sholpan [36]

Answer:

3.91 minutes

Explanation:

Given that:

Biacetyl breakdown with a half life of 9.0 min after undergoing first-order reaction;

As we known that the half-life for first order is:

t__{1/2}}= \frac{0.693}{k}

where;

k = constant

The formula can be re-written as:

k = \frac{0.693}{t__{1/2}}

k = \frac{0.693}{9.0 min}

k = 0.077 min^{-1}

Let the initial amount of butter flavor in the food be (N_0) = 100%

Also, the amount of butter flavor retained at 200°C (N_t)= 74%

The rate constant k = 0.077 min^{-1}

To determine how long can the food be heated at this temperature and retain 74% of its buttery flavor; we use the formula:

\frac{N_t}{N_0}= -kt

t = - (\frac{1}{k}*In\frac{N_t}{N_0}  )

Substituting our values; we have:

t = - (\frac{1}{0.077}*In\frac{74}{100}  )

t = 3.91 minutes

∵ The time needed for the food to be heated at this temperature and retain 74% of its buttery flavor is 3.91 minutes

4 0
3 years ago
The South Pole has warm summers. True False
agasfer [191]

Answer:False

Explanation:

Kinda of a opinionated question, but unless you call -12 C warm then the answer is False

7 0
3 years ago
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