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mash [69]
3 years ago
5

Which of the following is not present in skeletal structures?

Chemistry
1 answer:
cupoosta [38]3 years ago
6 0

Answer:

cartilage or soft tissue? you didn't give options :/

Explanation:

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Which events occurred during the space race
Roman55 [17]

Answer:

Date Significance Soviet Union Mission

August 21, 1957 First intercontinental ballistic missile (ICBM) R-7 Semyorka

October 4, 1957 First artificial satellite First signals from space Sputnik 1

November 3, 1957 First dog in orbit (Laika) Sputnik 2

January 31, 1958 First US satellite, detection of Van Allen radiation belts

Explanation:

8 0
3 years ago
Read 2 more answers
Please help me with chemistry
vodka [1.7K]

Table Giving Answer

Element Atomic mass % Amount

Mg_24     24                79    18.96

Mg_25 25                10    2.5

Mg_26 26                11   2.86

   

Total                     24.32

Discussion

The method of calculation for this table, which was done in Excel (a spread sheet) is shown below. Assume that there is 100 grams of material of "pure" magnesium. What is it's mass?

<em><u>Sample  Calculation</u></em>

The the sample atomic mass = 24

Mass = % * sample atomic mass

Mass = 79% * 24

Mass = (79/100) * 24

Mass = 18.96

<em><u>Note</u></em>

The other two elements are found exactly the same as the sample calculation.

Then all you do is add the 3 masses together.

Answer

The mass of Mg to 1 decimal place is 24.3 <<<< Answer.


7 0
3 years ago
Calculate the pOH of a solution if the concentration of hydroxide ions (OH-) is 1.9 x 10-5M?
OLEGan [10]

Answer:

9.28

Explanation:

pOH refers to a measure of hydroxide ions concentration. pOH tells about the alkalinity of a solution. If pOH is less than 7 then aqueous solutions are alkaline, acidic if pOH is greater than 7 and neutral if pOH is equal to 7.

Concentration of the hydroxide ions = 1.9 x 10-5 M

pH = -log(1.9\times 10^{-5})=4.72

pOH = 14 - pH

=14 - 4.72 = 9.28

6 0
3 years ago
A crate holds 20 boxes of sewing supplies. Each box contains 8 spools of thread. Each spool has 250 meters of thread wrapped aro
exis [7]

Answer: 40000

Explanation:

250*8=2,000

2000*20=40000

5 0
1 year ago
In regard to protective actions for explosive devices, the area where the blast originates is referred to as ___________ perimet
lianna [129]
This is to fill in the answer to the question.

The area where the blast originates is referred to as <span>Scene Perimeter/Isolation Zone. This whole area is dangerous for people since it can contain harmful gasses or falling debris depending on the environment of the blast. 


</span>
7 0
2 years ago
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