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Alenkinab [10]
3 years ago
14

Question 1: When a chemical reaction occurs, what happens to the atoms of the two substances?

Biology
1 answer:
MatroZZZ [7]3 years ago
6 0

Answer:

In a chemical reaction, only the atoms present in the reactants can end up in the products.

Explanation: No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

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Which scenario describes an interaction between two of Earth's spheres?
NARA [144]

Answer: The options are not given, here are the options.

Water flows from a stream to a lake.

Gravity moves rocks to another location.

Lions use energy to catch other animals for food.

Bears dig big holes in the ground to protect their young.

The correct one is Gravity move rock to another location.

Explanation:

The Earth spheres consist of the biosphere which is the living components, Hydrosphere (water), geosphere( rocks) and the atmosphere( gases). The Earth's spheres closely connected that a change in one sphere can result in change in another sphere.

For example, birds fly through the atmosphere, water(Hydrosphere) flow through the soil (lithosphere)

4 0
3 years ago
The cells of some have , which are organelles where photosynthesis occurs. The cells of do not contain these organelles.
kompoz [17]

Plant cells contain organelles, called chloroplasts, where photosynthesis occurs. However animal cells do not have chloroplasts.

3 0
3 years ago
Read 2 more answers
Muscle that allows you to shrug your shoulders or extend your head.
SOVA2 [1]

Answer:

the trapezius muscle.

Explanation:

the trapezius muscles are a pair of triangular muscles that extend over the back of the neck and shoulders, moving the head and shoulder blades.

7 0
3 years ago
Define each of the following and contrast them with one another 1 mineral 2 metal 3 ore 4 alloy
LenKa [72]

Answer:

mineral -

This is any element or inorganic compound. It is a naturally occuring solid chemical compound found in pure form. It is commonly found within rocks.

metal -

an element known for is lustrous, opaque, and malleable properties. Metals are good conductor of heat and electricity.

ore -

This is a natural rock from which minerals, elements or metals can be extracted through mining.

alloy -

An alloy is a group of metals or metals that have one or more other elements. Take for example, red gold is a combination of gold and copper while white gold is a combination of silver and gold.

4 0
3 years ago
A volcano erupts, killing all the organisms in an area. Eventually, small plants
tangare [24]

Answer:

Succession.

Explanation:

3 0
3 years ago
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