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elena-s [515]
3 years ago
7

What is the chemical name for CaCO3?

Chemistry
2 answers:
Lostsunrise [7]3 years ago
5 0
CO3 = carbonate ion

So, CaCO3 = calcium carbonate

Other name for CaCO3 are: Limestone and Marble
quester [9]3 years ago
3 0
The answer is Calcium carbonate
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when gas evolution becomes very slow, heat the solution gently in the hood, then allow it to cool. What gas is formed in this re
son4ous [18]

Nitrogen gas is formed in this reaction.

<h3 /><h3>Nitrogen gas</h3>

Atomic number 7 and the letter N designate nitrogen as the chemical element. Group 15 of the periodic table, often known as the pnictogens, contains nitrogen as the lightest nonmetal element. It ranks eighth in overall abundance in the Milky Way and the Solar System, making it a common element in the cosmos. Two of the element's atoms combine to create the colorless and odorless diatomic gas N2 at standard temperature and pressure. The most common element that isn't mixed, N2 makes up around 78 percent of the Earth's atmosphere. All living things contain nitrogen, which is mostly found in amino acids (and thus proteins), nucleic acids (DNA and RNA), and the energy-transfer molecule adenosine triphosphate.

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8 0
2 years ago
Which of the following are always larger than the neutral atoms from which they are formed?
Anuta_ua [19.1K]

Answer:

A) Cations

Explanation:

a) Cations have a positive charge and are larger than their neutral counterparts!

b) Anions have a negative charge and are smaller than their neutral counterparts

c) Metals can have either a positive or negative charge making it either a cation or an anion

d) Carbon is an element and it can have a charge anywhere from +4 to -4

A good way to remember that cations are positive is to think that CATions are always PAWSitive! ^-^

3 0
3 years ago
Enzymes are remarkably efficient catalysts that can increase reaction rates by as many as 20 orders of magnitude.(b) What charac
Makovka662 [10]

The characteristics of enzymes that give them this effectiveness as catalysts are they are made up of protein, they do not consume in the reaction ad lower the activation energy.

<h3>What is an enzyme?</h3>

The enzyme is a biological catalyst. The substrate is bound to them, and they supply the activation energy. It is the quantity of energy needed to initiate the reaction.

They are effective catalysts, as a small amount of them can affect a large amount of reaction.

Thus, enzymes are made of protein, do not consume in the reaction, and have reduced activation energy, which contributes to their efficiency as catalysts.

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5 0
2 years ago
Please help, thank you! Match each organism with the correct description.
hodyreva [135]

Answer:

1. A

2. D

3. E

4. B

5. C

Explanation:

1. Plants are known as producers since they produce energy for themselves through photosynthesis.

2. The rabbit is a primary consumer since it’s herbivore and only feeds on producers for energy.

3. The tiger is a carnivore, and preys on other consumers for energy.

4. A human is an omnivore since it can gain energy from both producers and consumers.

5. Bacteria are know as decomposers since such category of organisms break down other organisms to gain energy.

5 0
3 years ago
Suppose you have 300.0 mL of a 0.450 M sodium hydroxide solution.
icang [17]

Answer:

135 moles

Explanation:

300*0.45

= 135

PLS GIVE BRAINLIEST

7 0
3 years ago
Read 2 more answers
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