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mafiozo [28]
4 years ago
8

which of the following terms refers to areas of gas on the on the suns surface that are cooler than the gases around them

Chemistry
1 answer:
olganol [36]4 years ago
6 0
The answer is Sunspots, these certain spots are black and dark, and are much cooler than the surrounding surface.
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A vegetable soup recipe requires one teaspoonful of salt. A chef accidentally puts in one tablespoonful. Now the soup is much to
nirvana33 [79]

Answer:

a. Put a piece of fresh sliced yam with a bore into it into the soup.

Explanation:

b. Osmosis may occur

5 0
4 years ago
7.The following symbol is used to represent the particles in what type of radiation?Select one:a. Alphab. Betac. Gammad. Neutron
laiz [17]

Explanation:

The emission of a beta particle is the result of the rearrangement of the unstable nucleus of the radioactive atom in order to acquire stability. For that, a phenomenon occurs in the nucleus, in which a neutron decomposes giving rise to three new particles: a proton, an electron (β particle), and a neutrino. The antineutrino and electron are emitted. The proton, however, remains in the nucleus.

The symbol is used to represent beta particles.

Answer: b. Beta

5 0
2 years ago
Assign oxidation numbers to each element in this compound. NO
algol13

<u>Answer:</u>

NO ---> N +2 and O -2

<u>Explanation:</u>

Oxidation numbers are assigned to the elements of a compound to keep a track of the number of electrons each atom has.

Here we have a compound NO (Nitrogen Oxide). The Nitrogen is assigned an oxidation number of +2 while Oxygen in this compound is assigned an oxidation number of -2.

So the algebraic sum of the oxidation numbers of the elements in the compound NO is equal to zero.

5 0
3 years ago
Read 2 more answers
Consider the following representation of a reaction mechanism.
Irina-Kira [14]

Answer:

The rate determining step is step 1

Explanation:

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3 years ago
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1. Which is composed of matter? (6P21)<br> A. Electricity<br> B. An atom<br> C. Light<br> D. heat
soldi70 [24.7K]

Answer:

An atom

Explanation:

Matter is composed of atoms and atom is further consist of smaller particles called electron, proton and neutrons.

The electron is subatomic particle that revolve around outside the nucleus and has negligible mass. It has a negative charge.

Symbol= e-

Mass= 9.10938356×10-31 Kg

It was discovered by j. j. Thomson in 1897 during the study of cathode ray properties.

While neutron and proton are present inside the nucleus. Proton has positive charge while neutron is electrically neutral. Proton is discovered by Rutherford while neutron is discovered by James Chadwick in 1932.

Symbol of proton= P+  

Symbol of neutron= n0  

Mass of proton=1.672623×10-27 Kg

Mass of neutron=1.674929×10-27 Kg

The atom interact with another atom by sharing or transferring the electrons. The properties of substances are depend upon the electrons present out side the nucleus.

7 0
3 years ago
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