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Gnom [1K]
2 years ago
14

5. Compounds are a pure substance that contains two or more kinds of​

Chemistry
1 answer:
Ede4ka [16]2 years ago
8 0

Answer:

compounds are pure substance that contains two or more kinds of elements

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A beta particle has
JulsSmile [24]

Explanation:

Beta particles have a mass which is half of one thousandth of the mass of a proton and carry either a single negative (electron) or positive (positron) charge. As they have a small mass and can be released with high energy, they can reach relativistic speeds (close to the speed of light).

5 0
3 years ago
____ KOH + H3PO4 = K3PO4 + H20
sleet_krkn [62]

Answer:

3 KOH + H3PO4 ----> K3PO4 + 3H2O

Explanation:

Ensure the number of atoms on both sides are the same.

Left: 3K, 7O, 6H, 1P

Right: 3K, 7O, 6H, 1P

Hence, the equation is now balanced.

6 0
3 years ago
The symbol for xenon (Xe) would be a part of the noble gas notation for the element antimony. cesium. radium. uranium.
nlexa [21]
The noble gas notation is the short or abbreviated form of the electron configuration.

It means that you use the symbol of the previous noble gas as part of the electron configuration of an element.

The gas noble previous to antimony is Kr, so you do not use Xe to write the electron configuration of Sb.

The gas noble previous to radium is Rn, so you do not use Xe to wirte the electron configuration of Ra.

The gas noble previous to uranium is Rn, so you do  not use Xe to write the electron configuration of U.

The gas noble previous to cesium is Xe, so you use Xe to write the noble notation for Sb. This is it: Cs: [Xe] 6s.

Answer: cesium



The ga
8 0
3 years ago
Read 2 more answers
How much heat is absorbed if a 30.0 gram sample of carbon is heated from 10.5 degrees Celsius to 22.2 degrees celsius
Vadim26 [7]

Answer:

A lot of heat

Explanation:

3 0
2 years ago
analysis of a 12.04g sample of liquid compound compoed of carbon,hydrogen and nitrogen showed it to contain 7.34g carbon ,1.85g
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Answer:

Nskalakababiakviaug

4 0
3 years ago
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