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schepotkina [342]
3 years ago
8

the abrupt change in salinity with depth is known as a? A halocline b thermocline C salolocline D pycnocline

Chemistry
1 answer:
Anarel [89]3 years ago
3 0
The answer is
D. Pynocline
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Which symbol depicts an oxidizing reagent
qaws [65]

That is the symbol that depicts an oxidizing reagent

3 0
2 years ago
Can someone answer this for me and show proof I WILL MARK BRAINLIEST
AlexFokin [52]

Answer:

A

Explanation:

Caus it makes sense

7 0
3 years ago
Which of the following is a universal solvent? <br> H2O<br> H2O2<br> C2H5OH<br> HCl
scZoUnD [109]

Answer:

H₂O

Explanation:

H₂O is the chemical formula of water.

Water is regarded as a "universal solvent". The reason behind this is the property of the water. Water is a solvent that can dissolve a variety of substances in itself. Any other liquid cannot dissolve the number of substances that the solvent water can. The reason behind being the universal solvent is the chemical composition and physical characteristics of water.

3 0
3 years ago
In one sentence, explain how the particles of a substance change as a substance changes from a solid to a liquid to a gas.
mestny [16]

Answer:

An example would be ice.

Explanation:

Because ice starts off as a solid and then when it melts from heat turns into a liquid and then if heated can to into a gas.

5 0
3 years ago
A piece of charcoal is found to contain
Naddika [18.5K]

Answer: The tree died 9709.46 years before.

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant = 100

a - x = amount left after decay process = \frac{30}{100}\times 100=30

a) to find rate constant

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.693}{5600years}=1.24\times 10^{-4}years^{-1}

b) to know the age

t=\frac{2.303}{1.24\times 10^{-4}}\log\frac{100}{30}

t=9709.46years

The tree died 9709.46 years before.

8 0
3 years ago
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