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Crazy boy [7]
2 years ago
11

Which of the following chemical reactions represents an acid-base reaction?

Chemistry
1 answer:
LenKa [72]2 years ago
5 0

Answer:

HBr + KOH -> KBr + H₂O

Explanation:

Acid-base reactions always produce a salt [KBr] and water [H₂O].

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The mass number of an atom is 15, and its atomic number is 7. The atom probably has... 8 neutrons in the nucleus. about as much
Artist 52 [7]

Answer: Option (a) is the correct answer.

Explanation:

Atomic number is the sum of only total number of protons present in an element. Whereas mass number is the sum of total number of both protons and neutrons present in an element.

For example, given atom has mass number as 15 and its atomic number is 7.

Therefore, number of neutrons present in it will be calculated as follows.

                    Mass number = no. of protons + no. of neutrons

                         15 = 7 + no. of neutrons

                    no. of neutrons = 15 - 7

                                               = 8

Thus, we can conclude that the given atom contains 8 neutrons in the nucleus.

3 0
3 years ago
Most molecules that contain carbon are _____?
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<span>Most molecules containing carbon are organic. All organic compounds, from basic elements through complex living creatures, contain some degree of carbon, which is one of the most basic components of any organic molecule.</span>
7 0
3 years ago
Read 2 more answers
Explain the process of groundwater
Anon25 [30]

Answer:

Limestone is easily eroded from above and below.

Explanation:

The Florida bedrock is largely made of limestone. Because limestone is a rock that is easily eroded, the landscape of a great part of Florida is classified as karstic.

Karstic landscapes are dotted by sinkholes, underground rivers, caves, and springs. The more acidic the groundwater or rainwater, the faster and more easily the limestone will succumb to erosion.

In this way, underground rivers, streams, runoff, rain, and underground water pooled in caves have all carved out gaps and caverns in the weak limestone bedrock.

3 0
3 years ago
How many electrons each atom gives or takes in KBr
notsponge [240]
K gives 1 electron, and Br takes 1 electron.
4 0
3 years ago
A car moves at a speed of 50 kilometers/hour. Its kinetic energy is 400 joules. If the same car moves at a speed of 100 kilomete
lys-0071 [83]

ke prop to v^2


ke1/v1^2=ke2/v2^2


400/50x50=joules/100x100


400x2x2


1600j

8 0
3 years ago
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