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user100 [1]
3 years ago
15

Please help thankyou

Chemistry
1 answer:
dangina [55]3 years ago
6 0

Hope this serves helpful to u!!

Hope this helps by the way as well

Good luck!!!

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Last question<br> help<br> im confusion
Andrej [43]

Remark

The given thing on the right is a positron. The mass for these subatomic particles is considered to be 0. It's atomic number is 1 which means it is a blood relative of a proton.

So essentially what happens is that X is one space to the left on the periodic table. But let's solve this a little bit more formally.

Solution

_{65}^{147}\text{Tb}\longrightarrow _{z}^{y}\text{x} +_{1}^{0}{e}

y stays the same at 147. It is z that changes.

65 = z + 1     Subtract 1 from both sides.

64 = z

So the chemical with 64 as its position on the periodic table is

Gadolinium and the answer is C

5 0
3 years ago
Cocaine (C₁₇H₂₁O₄N) is a natural substance found in coca leaves, which have been used for centuries as a local anesthetic and st
kondor19780726 [428]

Cocaine is a stimulant substance obtained from the leaves of two Coca species native to South America, Erythroxylum coca and Erythroxylum novogranatense.

<h3>What is a coca?</h3>

Coca is a plant. The leaves of the coca plant are the source of cocaine, which is an illegal that is used nasally, injected, or smoked for mind-altering effects.

Cocaine is also an FDA-approved Schedule II . This means cocaine can be prescribed by a healthcare provider, but the process is strictly regulated.

<h3>What happens when you smoke coca leaves?</h3>

The smoking of coca paste causes four distinct successive phases of mental disorder: euphoria, dysphoria, hallucinosis and paranoid psychosis. It can produce severe intoxication, prolonged or relapsing psychosis and, in some cases, end of life.

Learn more about cocaine here:

<h3>brainly.com/question/944545</h3><h3 /><h3>#SPJ4</h3>
3 0
2 years ago
What happens when molecules absorb energy?
Nata [24]

Answer:

C. The molecules move slower

Explanation:

3 0
3 years ago
A student, wearing chemical safety goggles and a lab apron, is to perform a laboratory test to determine the pH value of two dif
Setler79 [48]
They should probably wear gloves. A pH of 2.0 is a very strong acid, and it can easily irritate their hands. They should also remember to NEVER touch their face, mouth, etc. and to keep all chemicals on the laboratory table.
6 0
3 years ago
I heat 100. grams of water from a temperature of 10.0°C to a temperature of 50.0°C. The specific heat capacity of water is 4.18
mezya [45]

Answer:

=100×4,18×40

=16'720Joules

5 0
3 years ago
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