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Valentin [98]
4 years ago
5

The resulting daughter isotope that is formed when the atom astatine-213 undergoes alpha emission is: ​

Chemistry
1 answer:
bagirrra123 [75]4 years ago
7 0
Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha decay (-decay), beta decay (-decay), and gamma decay (-decay), all of which involve emitting one or more particles or photons. The weak force is the mechanism that is responsible for beta decay, while the other two are governed by the usual electromagnetic and strong forces.[1]
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Which contains the greatest mass of oxygen: 0.75 mol of ethanol (C2H5OH), 0.60 mol of formic acid (HCO2H), or 1.0 mol of water (
alisha [4.7K]

Answer: formic acid (HCOOH) contains the greatest mass of oxygen

Explanation:Please see attachment for explanation

3 0
4 years ago
Describe the effect of subjecting hydrogen to pressure​
ExtremeBDS [4]

Answer:

When hydrogen is subjected to large enough pressure, it solidifies according to theory.

Explanation:

According to theory, when  hydrogen molecules are subjected to enormous degree of pressure the molecules will solidify.

What happens here is that the hydrogen–hydrogen bonds in the hydrogen molecule will break apart and the molecules collapses into hydrogen atoms.

Hence, when hydrogen is subjected to large enough pressure, it solidifies according to theory.

3 0
3 years ago
Help me please. <br> Thermal energy can come from other forms of energy. Give several examples how.
pychu [463]

a heater turns electrical energy into thermal energy

the sun turns gas into thermal energy

annd i cant think of anymore but i hope this helps you

5 0
3 years ago
Amylase was shown to work best at a ph of 7 in comparison of a ph of 2. If the stomach juices have a ph of 2, what do we know ab
GuDViN [60]

The salivary amylase did not perform well if the pH becomes lower because it needs neutral pH for performing its functions.

<h3>Effect of pH on the enzyme</h3>

We can say that the salivary amylase did not perform their function very well within the stomach due to unfavourable environment such as lower pH. Due to lower pH, the enzyme structure is damaged so unable to perform its function so we can conclude that the salivary amylase did not perform well if the pH becomes lower.

Learn more about pH here: brainly.com/question/172153

6 0
3 years ago
a gap in the rock layer due to erosion from no rocks being deposited.HELP FAST PLEASE!?!?!?!?
Allushta [10]

a gap in the rock layer due to erosion or from no rocks being deposited

geological processes taking place today are the same as those that occurred in the past.  

fossil that record the shape and structure of an organism

each layer is older than the layer above and younger than the layer below it.

the preserved remains or traces of a once living organism.

fossils that record the movement or behavior of an organism.

sediments spread in all directions until they thin out or hit a barrier.

sedimentary rocks are deposited horizontally.

age of rock compared to the ages of rock layers.

age of rocks calculated in years since formed.

words:

1.absolute age

2.body fossil

3.fossil

4.principle of lateral continuity

5.principle of original horizontally

6.principle of superposition

7.relative age  

8.trace fossil

9. unconformity

10.uniformitarianism

Answer is 9,10,2,6,3,8,4,5,7,1

All my answers were correct on this one

6 0
4 years ago
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