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xxMikexx [17]
3 years ago
10

PLEASE HELP ASAP DUE IN 2 MINUTES

Chemistry
2 answers:
Alex17521 [72]3 years ago
7 0

Answer:

its rr, Rr and RR

Explanation:

God bless all of you

mr_godi [17]3 years ago
5 0

Answer:

Rr RR rr

Explanation:

i took the test an got an 100

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I need help please I dont understand this ​
Snezhnost [94]

Answer:

b

Explanation:

bbbbbbbbbbbbbb

6 0
3 years ago
Read 2 more answers
Show a correct numerical setup for calculating the
valkas [14]

0.25 moles of CO2 is present in 11 grams of CO2.

Explanation:

A mole represents the number of chemical entities in an element or molecule.

Number of moles of an element or molecule is determined by the formula:

The Number of moles (n) = weight of the atom given  ÷ atomic or molecular weight of the one mole of the element or molecule.

Themolar mass of one mole of carbon dioxide is:

12+ ( 16×2)

= 44 gram/mole

The given weight is 44 grams of carbon dioxide.

Putting the values in the equation,

n= 11 gms÷44 gms/ mole

n   = 0.25 mole

7 0
3 years ago
What is the mass in grams of 1.204x10^24 molecules of hydrogen gas (H2) ?
Katen [24]

Answer:

68 g/mol. 34 g/mol.

Explanation:

6 0
3 years ago
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CHEMISTRY HELP<br> Once the following equation is balanced, what is the correct coefficient for Z₂?
yawa3891 [41]

Answer:

The coefficient of Z₂ is 1.

Explanation:

From the question given above:

X + ZY —> XY + Z₂

Next, we shall balance the equation to obtain the coefficient of Z₂. This can be obtained as follow:

X + ZY —> XY + Z₂

There is 1 atom of Z on the left side and 2 atoms on the right side. It can be balance by putting 2 in front of ZY as shown below:

X + 2ZY —> XY + Z₂

There are 2 atoms of Y on the left side and 1 atom on the right side. It can be balance by putting 2 in front of XY as shown below:

X + 2ZY —> 2XY + Z₂

Now, we have 1 atom of X on the left side and 2 atoms on the right side. It can be balance by putting 2 in front of X as shown below:

2X + 2ZY —> 2XY + Z₂

Now the equation is balanced.

Thus, the coefficient of Z₂ is 1.

8 0
3 years ago
Pls can someone help me with this pls
GenaCL600 [577]

Answer:

not sure if this is the right way to answer this question but PbS is Phosphate-buffered saline (i think)

Explanation:

5 0
3 years ago
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