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sattari [20]
3 years ago
11

The ratio of the mass of U-238 to the mass of Pb-206 can be used to

Chemistry
1 answer:
ladessa [460]3 years ago
7 0

Answer:3)date geological formations

Explanation:

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Which of the following organisms evolved after amphibians?
vovangra [49]

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Reptiles, marsupials, dogs, and cats

Explanation:

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Briefly explain why adding salt to icy roads helps melt the ice and prevent it from freezing again.
g100num [7]

Answer:

See explanation below

Explanation:

The melting point (the temperature that it changes from solid to liquid) of a pure substance depends on its mass, the forces between its molecules, and the pressure of the system.

The melting point, or the freezing point, of a mixture, is a temperature between the melting point of its components. Salt has a huge negative melting point, so when it is added to the water, the melting point decreases from 0ºC to -21ºC approximately.

So, the water will only freeze again if the temperature becomes below -21ºC which is very difficult to happen.

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3 years ago
Which term is used to describe a group of arctic foxes that live in part of Alaska’s Arctic National Wildlife Refuge?
Allushta [10]

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The best answer would be biome

7 0
4 years ago
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A washing powder contains sodium hydrogencarbonate
Vladimir [108]
False.
Washing soda is sodium carbonate(Na₂CO₃).
Baking soda is sodium hydrogen carbonate(NaHCO₃).
3 0
4 years ago
The reaction is found to be first order in IO3−, first order in SO32−, and first order in H+. If [IO3−]=x, [SO32−]=y, and [H+]=z
ollegr [7]

Answer:

rate = kxyz

Explanation:

It is worth knowing that the rate low can only be determined by experimentation only not by just balancing equations. So here we are told that all the reactants x , y and z are all first order. This is important because we use this as exponents. That is why the exponents of all the reactants will be 1.

rate = kxyz

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3 years ago
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