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Softa [21]
3 years ago
15

What type of testing can reveal the precense of blood?

Chemistry
1 answer:
lorasvet [3.4K]3 years ago
3 0

Answer: precipitin test

Explanation:

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Answer:

A) (3.2g)

Explanation:

Did you reposed this? Because I remember answering this

3 0
3 years ago
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If you start with 0.020 g of Mg, how many moles of H2 will you make if the reaction is complete?
irina [24]

If one starts with 0.020 g of Mg, 0.0008 moles of H2 would be made if the reaction is complete.

Going by the balanced equation of reaction in the image, 1 mole of Mg will produce 1 mole of H2 in a complete reaction.

If 0.020 g of Mg is started with:

mole of Mg = mass/molar mass

                        = 0.020/24.3

                            = 0.0008 moles

Since the mole of Mg to H2 is 1:1, thus, 0.0008 moles of H2 will also be made from the reaction.

More on stoichiometry can be found here: brainly.com/question/9743981

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3 years ago
Given two objects in space, the object with the ____ mass will orbit the object with the ____ mass.
Furkat [3]

Answer:

A. Smaller, Larger

Explanation:

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mash [69]
The  major    groups  of  minerals  includes: carbonate   ions  and oxides,  .  In  addition  to   this   three  groups   the    following   are   also  the  major   groups   of    minerals
native   elements
sulfate
sulfides
halides
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nitrate       among   others  such   as  phosphate  and vanadate

3 0
3 years ago
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How does the city filter our drinking water?
pantera1 [17]
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