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Firdavs [7]
3 years ago
10

Guys plz help me plz

Chemistry
2 answers:
Irina18 [472]3 years ago
3 0

Answer:

The answer is C

Explanation:

kkurt [141]3 years ago
3 0

Answer:

the first question's answer is C.

Explanation:

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How many grams of FeS2 are needed to react with 95 g O2?
Rainbow [258]

Answer:

16.0  i think

Explanation:

4 0
3 years ago
In the word equation, sodium oxide water sodium hydroxide, the formula for sodium hydroxide is represented by
d1i1m1o1n [39]
Answer:
            <span>Formula for sodium hydroxide is represented by <u>NaOH</u>.

Explanation:
                     The reaction of Sodium oxide with water is as follow,

                               Na</span>₂O  +  H₂O    →    2 NaOH
<span>
Na</span>₂O is considered as a strong basic oxide as it contains O²⁻ which has high tendency to bind with hydrogen atoms. This reaction is an exothermic reaction and is conducted in cold water to produce NaOH.<span>

</span>
4 0
3 years ago
Someone please help will mark as brainliest
Karo-lina-s [1.5K]

Answer:

PET works by using a scanning device (a machine with a large hole at its center) to detect photons (subatomic particles) emitted by a radionuclide in the organ or tissue being examined.

Newer technology combines PET and CT into one scanner, known as PET/CT. PET/CT shows particular promise in the diagnosis and treatment of lung cancer, evaluating epilepsy, Alzheimer's disease and coronary artery disease.

Explanation: Most Brainliest Please

3 0
2 years ago
Calculate the atomic mass of Carbon if the two common isotopes of carbon have masses of
Mars2501 [29]

Answer:

Average atomic mass of carbon = 12.01 amu.

Explanation:

Given data:

Abundance of C¹² = 98.89%

Abundance of C¹³ = 1.11%

Atomic mass of C¹² = 12.000 amu

Atomic mass of C¹³ = 13.003 amu

Average atomic mass = ?

Solution:

Average atomic mass of carbon = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass of carbon = (12.000×98.89)+(13.003×1.11) /100

Average atomic mass of carbon=  1186.68 + 14.43333 / 100

Average atomic mass of carbon = 1201.11333 / 100

Average atomic mass of carbon = 12.01 amu.

5 0
3 years ago
How adding tin to copper makes the bronze alloy harder?
andrey2020 [161]
It makes the bronze stronger and harder than either of the other two medals
8 0
3 years ago
Read 2 more answers
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