3 years ago

If 8.25 grams of lead II nitrate reacts, how many grans of sodium nitrate is produced?

Chemistry

1 answer:

NeTakaya3 years ago

5 0

Hope this helps, I found the paper key too your question.

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Although almost 80% of the atmosphere is made up of nitrogen gas, most living things

Bas_tet [7]

Answer:

We don’t have the enzymes necessary to remove nitrogen from the atmosphere; we get our nitrogen from the food we eat. ^^

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3 years ago

Which tool would best allow you to make observations of an objects color and texture

netineya [11]

Answer:

what was it

Explanation:

4 0

3 years ago

Rhenium has two naturally occurring isotopes Re - 185 with a natural abundance of 37 40%, and Re - 187 with a natural abundance

Leya [2.2K]

Answer:

individual isotopes

Re 185 = 139.094

Re 187 = 232.815

Explanation:Correcting the typo error for natural abundance as 37 40 as 37.40 and 62 60 as 62.60

Answer is found as follows

For Re 185 natural abundance 37.40%

371.9087 x 37.40/100 = 139.0938538

six significant figures after rounding off = 139.094

For Re 187 natural abundance 62.60

371.9087 x 62.60/100 = 232.8148462

six significant figures after rounding off = 232.815

4 0

3 years ago

Balance the following equations 1.Na+HCI=NaCI+H2 2.Mg+O2=MgO

liberstina [14]

Answer:

1. 2Na + 2HCl = 2NaCl =H2

2. 2Mg + O2 = 2MgO

Explanation:

make sure that the number of atoms of each element is the same on each side of the equation

1. 2Na + 2HCl = 2NaCl =H2

on LHS of equation,

Na = 2

H = 2

Cl =2

On RHS of equation,

Na=2

H= 2

Cl =2

2. 2Mg + O2 = 2MgO

on LHS of equation,

Mg = 2

O2 = 2

On RHS of equation,

Mg = 2

O2 = 2

7 0

3 years ago

All of the sentences below are grammatically correct EXCEPT one, which contains a comma splice. Select the sentence that is NOT

4vir4ik [10]

The first and the last choice is the same, aren't they?

6 0

3 years ago

Read 2 more answers