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exis [7]
2 years ago
13

Which mass measurement contains four significant figures?

Chemistry
2 answers:
Snezhnost [94]2 years ago
7 0

Answer:

the answer is :

C) 1003 g

egoroff_w [7]2 years ago
7 0

Answer:

z

Explanation:

i looked up the answer trust me!!!

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wariber [46]

Answer:

Base

Explanation:

4 0
2 years ago
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The weathering of a tall mountain down into a low-lying hill is an example of a landform being changed through a ______ process
e-lub [12.9K]

an erosive process or erosion

erosion is when a rock is changed through the weather

7 0
3 years ago
Explain how the Law of Conservation of Mass is demonstrated In photosynthesis and cellular Respiration chemical equations. (Less
Oksi-84 [34.3K]

Explanation:

  • According to the law of conservation of mass, In a chemical reaction, mass is neither created nor destroyed. In other words, the total mass for the reactants needs to equal the total mass of the products.
  • <u><em>In photosynthesis the reactants are 6 carbon dioxide, 6 water and sunlight. The mass of these reactants adds to equal the mass of the products, which are 1 glucose and 6 oxygen. </em></u>
  • <u><em>Cellular respiration on the other hand uses glucose and oxygen gas to produce water, carbon dioxide, and a usable form of energy known as ATP.</em></u>
  • Cellular respiration is the opposite of photosynthesis, such that the products of photosynthesis are the reactants of cellular respiration. Cellular respiration also obeys the law of conservation of mass.
6 0
3 years ago
Help please asap will mark brainliest!! My time is running out.
sukhopar [10]

Answer:

I dont know sorry.

Explanation:

4 0
2 years ago
Read 2 more answers
Could someone help with this? Much appreciated!
alekssr [168]

Answer:

The 3rd answer down.

Na²O (sodium oxide) will be a base when exposed to water H²O

Explanation:

Sodium Oxide Na²O, will become Sodium Hydroxide after being exposed to water (at 80% I believe).

The oxygen ion in Na²O has 2 extra electrons which makes it highly charged and very attractive to hydrogen ions. The attraction is so strong that when Na²O comes in contact with H²O, the O(-2) strips off a hydrogen from water, forming 2 x OH ions which of course are still strongly basic.

6 0
2 years ago
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