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Likurg_2 [28]
3 years ago
7

Which of the following are all associated with the immune system?

Chemistry
1 answer:
nikdorinn [45]3 years ago
7 0

Answer:

White Blood cells, Bone marrow, Skin

Explanation:

good luck

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Give the characteristic of a first order reaction having only one reactant.
Slav-nsk [51]

Answer:

As the first order reaction depends on (a uni-molecular reaction) the concentration of only one reactant.

And the rate law of the reaction of first order with a reactant A is:

rate = K[A]^-1

when K is the rate constant.

6 0
2 years ago
Consider the reaction; Mg + O2 → MgO Calculate the mass of magnesium oxide possible if 2.5 g Mg reacts with 5.0 g O2?
MAXImum [283]

Answer:

4.15g

Explanation:

Balance the reaction:

2Mg + O2 = 2MgO

Find limiting reactant from the two, by dividing miles with coefficient

2.5/24.3 = 0.103 moles/2 = 0.0515

5/16 = 0.31 moles/2 = 0.156

0.0515 is small than 0.156, so limiting reactant is Mg

Compare the ratio of Mg with MgO

Ratio is 2:2

So same moles = 0.103 moles

Mass = moles x molar mass of MgO

Mass = 0.103 x 40.3

= 4.15g

*please give brainlest*

7 0
2 years ago
The volume of a sample of a gas at 273 c is 200.0 l. if the volume is decreased to 100.0 l at constant pressure, what will be th
Lyrx [107]
It will also be halved... but the relationship is with Kelvin not c.  So 273 +273 = 546 K.  half of that is 273 K, then subtract 273... you get 0 degrees c
7 0
3 years ago
Alkanes are hydrocarbons containing only single bonds. Acyclic alkanes have carbon atoms arranged in chains, whereas cycloalkane
sashaice [31]

Answer:

156 Hydrogen atoms

Explanation:

<u>Any acyclic alkane has a molecular formula that can be expressed as</u>:

CₙH₂ₙ₊₂

Where <em>n</em> is any integer and the number of carbon atoms. For example, Propane has 3 carbon atoms, this means it would have [2*3+2] 8 hydrogen atoms, resulting with a formula of C₃H₈.

An acyclic alkane with 77 carbon atoms would thus have:

2*77 + 2 = 156 hydrogen atoms

4 0
3 years ago
Use the term reclamation in a sentence
poizon [28]

Answer:

Explanation:

The increase of the arable land has been affected partly by the reclamation of the marshes, but mostly by the transformation of large tracts of the puszta

An example of a reclamation is how landfill employees sift through garbage to find usable items. An example of a reclamation is trees growing on land that was heavily logged.

3 0
2 years ago
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