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Marrrta [24]
2 years ago
7

Which product forms from the synthesis reaction between strontium (Sr) and sulfur (S)? O A. Sres O B. Srs O C. SS2 O D. Sr S2​

Chemistry
2 answers:
Morgarella [4.7K]2 years ago
7 0

Answer:

It should be Srs.

Explanation:

Sr + S is added to become (or basically chemically combined) SrS

nlexa [21]2 years ago
7 0

Answer:

SrS

Explanation:

Ap3x

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3 years ago
What would the total mass of a 4.9 mole sample of Barium (Ba) be if its Molar Mass is 137g?
Aleksandr-060686 [28]

Answer:

m = 671 grams

Explanation:

Given that,

No of moles, n = 4.9

Molar mass of Barium, M = 137 g

Mass divided by molar mass is equal to no of moles. It can be given by the formula as follows :

n=\dfrac{m}{M}\\\\m=n\times M\\\\m=4.9\times 137\\\\m=671.3\ g

or

m = 671 grams

So, the total mass of the sample of Barium is 671 grams.

8 0
2 years ago
What are three functions needed for a plant to survive
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Water, Sun/Heat, and Carbon Dioxicide/Air

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8 0
3 years ago
Read 2 more answers
Describe the many different forms of energy involved with stretching and releasing a rubber band. What other processes are simil
Nadya [2.5K]

Answer:

Conversion of kinetic energy to potential energy (chemo mechanical energy)

In the state of rest, the rubber is a tangled mass of long chained cross-linked polymer that due to their disorderliness are in a state of increased entropy. By pulling on the polymer, the applied kinetic energy stretches the polymer into straight chains, giving them order and reducing their entropy. The stretched rubber then has energy stored in the form of chemo mechanical energy which is a form of potential energy

Conversion of the stored potential energy in the stretched to kinetic energy

By remaining in a stretched condition, the rubber is in a state of high potential energy, when the force holding the rubber in place is removed, due to the laws of thermodynamics, the polymers in the rubber curls back to their state of "random" tangled mass releasing the stored potential energy in the process and doing work such as moving items placed in the rubber's path of motion such as an object that has weight, w then takes up the kinetic energy 1/2×m×v² which can can result in the flight of the object.

Explanation:

5 0
2 years ago
Read 2 more answers
2 questions, please help!!
Amanda [17]

i'd go for universal indicator, bromothymol blue and methyl red  

i mean, they have the degrees of acidity (specific color changes)  

they have wider ranges of color changes which will lead to the strength of acid  

you will know the degree of acidity of the cosmetics  

in fact, bromothymol blue is used to detect the slightest level of acid or base in a substance  

universal indicator has the pH charts; the range is big so that you can measure the level of acidity effectively  

methyl red is sensitive too as the other two mentioned earlier  

the other way that's not included in your choices is the pH meter  

unlike litmus papers which just have 2 results; either red or blue  

phenolphthalein only colorless, pale pink  

you won't know the degree of acidity  

hope that helps

7 0
2 years ago
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