3 years ago

Chemical formula for urea?

Chemistry

1 answer:

faltersainse [42]3 years ago

4 0

The answer for this is CH4N20

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In the lab, you are given a metal ball. You measure the mass of the ball to be 28 g. You place the ball in a graduated cylinder

KIM [24]

Answer:

Density = 8.75ml

Explanation:

Density = Mass / Volume

In this problem ...

Mass = 28 grams

Volume = 31.4ml - 28.2ml = 32ml (water displacement also)

∴Density = mass /volume = 28g/32ml = 8.75g/ml

8 0

3 years ago

iron combines with oxygen to form rust. given the chemical reaction, how many grams of rust would be produced if 3 grams of reac

tia_tia [17]

Answer:

I believe its 1 gram

Explanation:

8 0

3 years ago

The alkali metals all react with water. which is the most reactive metal?

kifflom [539]

Alkali Metals (Group 1) elements experience an increase in the vigour of their reaction in water as they go down the group (as the atomic number increase). As such the most reactive Alkali Metal would be FRANCIUM, which is at the base of Group One.

Quite frankly, you do not want Francium to react with water- that's a huge explosion on your hand.