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Bad White [126]
2 years ago
6

What statements accurately describe matter? Check all that apply

Chemistry
1 answer:
adell [148]2 years ago
3 0

Answer:

where are the options?

Explanation:

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About how much is one liter?
AleksAgata [21]
Look at the liter man it’s a great way to learn how much every liquid measurement is
7 0
3 years ago
How many grams of CO are needed to react with an excess of Fe 2 O 3 to produce 209.7 g Fe?
gavmur [86]

Answer:

Mass = 157.5 g

Explanation:

Given data:

Mass of CO needed  = ?

Mass of Fe formed = 209.7 g

Solution:

Chemical equation:

3CO + F₂O₃   →       2Fe + 3CO₂

Number of moles of Fe:

Number of moles = mass/ molar mass

Number of moles = 209.7 g/ 55.85 g/mol

Number of moles = 3.75 mol

Now we will compare the moles of iron and carbon monoxide.

                               Fe            :              CO

                                 2            :              3

                                3.75         ;             3/2×3.75 = 5.625 mol

Mass of CO:

Mass = number of moles × molar mass

Mass = 5.625 mol × 28 g/mol

Mass = 157.5 g

4 0
3 years ago
The principal ingredient of glass is ______________________.
Lilit [14]
The principal ingredient of glass is quartz sand (SiO₂).
4 0
3 years ago
Help with Organic chemistry mechanism
yarga [219]
3H + 3Br = HBr9 Organic chemistry mechanism
4 0
3 years ago
Chlorophyll a is one of the green pigments found in plants. Chlorophyll a has the molecular formula C55H72MgN4O5. How many atoms
yuradex [85]
We add up all the various atoms:
C: 55
H: 72
Mg: 1
N: 4
O: 5

55 + 72 + 1 + 4 + 5
= 137

The answer is B.
3 0
3 years ago
Read 2 more answers
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