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alexandr1967 [171]
2 years ago
13

Plants and animals need to protect themselves to survive. Select the statement that best describes the adaptions of animals and

plants.
Chemistry
1 answer:
saul85 [17]2 years ago
3 0
I need points lol sorry for wasting ur time we
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What happens to valence electrons in ionic bonding? this is a question i know but gives me answer choices im not sure about
il63 [147K]
I think the answer is B, the metal loses valence electrons to the nonmetal.
8 0
2 years ago
Determine if the following compounds are likely to have ionic or covalent bonds. a. Magnesium oxide (MgO) _______________ b. Str
nika2105 [10]

Answer:

The answer to your question is below

Explanation:

Ionic bond is a kind of bond in which a metal attaches to a nonmetal. Also we know that a molecule has ionic bonding if the electronegativity is higher than 1.7.

                    Kind of elements         Difference of electronegativity     Bond

a) MgO         Metal - Nonmetal                3.44 -  1.31 = 2.13                     Ionic

b) SrCl₂        Metal -Nonmetal                  3.16 - 0.95 = 2.21                    Ionic

c) O₃             Nonmetal- Nonmetal          3.44 - 3.44 = 0                      Covalent

d) CH₄O       Nonmetal-Nonmetal           3.44 - 2.55 = 0.89                Covalent

   Carbon, Hydrogen and oxygen are nonmetals

2) Silver coins can conduct electricity.

4 0
2 years ago
If a solution of glucose has a concentration of 0.500 M, how many moles of are in 8.00 L of
Sidana [21]

Answer:

n = 4mol

Explanation:

n =? C= 0.5M, V = 8L

Substitute into

n = CV

n= 0.5×8= 4mol

6 0
2 years ago
Which of the following statements is correct about the gases which participate in photosynthesis? (5 points)
aleksklad [387]

Answer:

Carbon dioxide is used up, and oxygen is produced.

Explanation:

For photosynthesis to occur the plant need carbon dioxide water and sunlight to convert it into glucose for it to eat and oxygen is a byproduct of the chemical reaction.

4 0
3 years ago
All igneous rocks have the same mineral compositions.
lawyer [7]

here is some facts

Limestone is a sedimentary rock, whereas marble is metamorphic. These two rock types can be distinguished by their textures. ... 2- Gabbro and basalt are two igneous rocks having the same chemical composition, and the same minerals (plagioclase feldspar + pyroxene), but are of different origins.

7 0
2 years ago
Read 2 more answers
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