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irina1246 [14]
2 years ago
10

Help pls you get 22 points if you answer me

Chemistry
1 answer:
snow_tiger [21]2 years ago
5 0

Answer:

the 2nd one

Explanation:

All other symbols are for Mathematics.

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A group of birds eat fruit from a tree. The fruit falls to the ground where
olchik [2.2K]

Answer:

Both answer choice 2 and answer choice 3 are correct choices.

Explanation:

Biotic factors are living components in an ecosystem. They are living organisms which affect another living component in an ecosystem.

Antibiotic factors are non living components of an ecosystem. They are chemicals which affect living organisms.

The choice 2 is correct. The seeds spread out by mice is a biotic factor interacting with an antibiotic factor

Choice 3 is correct. The seeds in the soil grow into new trees are biotic factors interacting with an antibiotic factor

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4 years ago
What type of mountain are the andes mountains
Julli [10]
T<span>he </span>Andes<span> range has many active volcanoes, which are distributed in four volcanic zones separated by areas of inactivity. The </span>Andean<span> volcanism is a result of subduction of the Nazca Plate and Antarctic Plate underneath the South American Plate.</span>
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4 years ago
HELPPP!! Which describes one feature of the image formed by a convex mirror?
notka56 [123]

Answer:

The correct answer is - right-side up.

Explanation:

A diverging mirror is a curved mirror that can be bulge outside towards the source of light called a convex mirror or inward away from the source of light called a concave mirror.

A convex mirror is a mirror that forms an image bigger and but right side up or exact as the object direction also called a virtual image. It appears to be bigger than the real object and not upside down as concave mirrors.

8 0
3 years ago
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What did Dalton’s atomic theory teach
sweet-ann [11.9K]

Answer:

  • All matter is composed of atoms.
  • Atoms are not destructible.
  • Compounds formation occur by the combination of one or different types of atoms
  • In the chemical reactions, atoms are rearranged.
  • The atom of the same elements are similar in size and properties and the Atoms of the different elements are different in size and properties.

Explanation:

  • <u>John Dalton has developed the Dalton atomic theory.</u>
  • Dalton atomic theory was the first to explain that all matters composed of atoms and its properties, the atom as the smallest particle which cannot be destroyed and damaged.
  • This theory was based on the <u>law of conservation of mass and law of constant composition.</u>
  • His theory was accepted by many scientists.

6 0
4 years ago
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Write the balanced chemical equations for the reaction of magnesium metal with oxygen gas, and for the reaction of magnesium met
Sunny_sXe [5.5K]
Magnesium element exists as single atoms. Free oxygen is always diatomic (two atoms bonded together) as O2. Nitrogen gas is also diatomic N2.

2Mg + O2 → MgO

Mg forms a +2 ion, O forms a -2 ion, so they combine and balance in a 1:1 ratio. MgO, magnesium oxide, is a solid. 
3Mg + N2→Mg3N2

Mg forms a +2 ion, but N forms a -3 ion. Hence the Mg3N2 configuration for magnesium nitride.
4 0
4 years ago
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