Which system creates blood cells

Chemistry

2 answers:

elena-14-01-66 [18.8K]3 years ago

7 0

Answer:

Skeletal System is what creates blood cells

BartSMP [9]3 years ago

4 0

Skeletal system makes blood cells

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Can someone tell me the answer and how to do the problem?

Wittaler [7]

Answer:

is tht wht u want

Explanation:

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3 years ago

which of the following is the smallest in volume? nucleus of oxygen atom, water molcule, protron, ice crystal, electron cloud of

Marta_Voda [28]

The only thing you need to put the followings into correct order is to remember that the smalles mass - the less volume it has. So, accordnig to this, the order should be like that : An ice crystal- A water molecule-An oxygen atom-The electron cloud-<span>An oxygen nucleus. Hope you will find it helpful!</span>

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3 years ago

13.50 grams of Pb(NO3)4 are dissolved in enough water to make 250 mL of solution. What is the molar its of the resulting solutio

likoan [24]

Data:
M (molarity) = ? (M or Mol/L)
m (mass) = 13.50 g
V (volume) = 250 mL → 0.25 L
MM (Molar Mass) of Lead(IV) Nitrate $Pb(NO_3)_4$
Pb = 1*207 = 207 amu
N = (1*14)*4 = 14*4 = 56 amu
O = (3*16)*4 = 48*4 = 192 amu
------------------------------------
MM of $Pb(NO_3)_4$ = 207+56+192 = 455 g/mol

Formula:
$M = \frac{m}{MM*V}$

Solving:
$M = \frac{m}{MM*V}$
$M = \frac{13.50}{455*0.25}$
$M = \frac{13.50}{113.75}$
$M = 0.118681318...\:\:\to\:\:\boxed{\boxed{M \approx 0.119\:Mol/L}}\end{array}}\qquad\quad\checkmark$

Answer:
<span>B. 0.119 M</span>

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3 years ago

Which of the following metals would be the best for the new frying pan?

Rudik [331]

Answer:

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Explanation:

hope this helps!

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3 years ago

How many moles of pcl5 can be produced from 28.0 g of p4 (and excess cl2)?

BARSIC [14]

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according to molar ratio of 1:4
number of PCl₅ moles formed -0.22 mol x 4 = 0.88 mol
0.88 mol of PCl₅ is formed

5 0

3 years ago