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Lelu [443]
2 years ago
5

IB CHEM SOLUTIONS AND CONCENTRATIONS

Chemistry
1 answer:
Tamiku [17]2 years ago
3 0

Explanation:

<h3> </h3><h3>look at the picture ...... </h3>

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At what temperature,in degrees°C, would 12.6g of HCN occupy 13.3L if the pressure is 0.97 atm​
Flura [38]

Answer:

63.5°c

Explanation:

almost postive this is right

5 0
4 years ago
Read 2 more answers
A.Which facilities contribute the most to recycling and the least to recycling based on the pie chart graphic?
nirvana33 [79]

Answer:

a) To determine the facilities that contribute the most to recycling check the pie chart and select the facility with the largest portion while to determine the facilities that contribute the least to recycling check the pie chart and select the facility with the smallest portion

b) Energy is saved because the products which are recycled usually require less energy to turn them into usable materials

c) It saves energy through recycling. It helps sustains the environment. It decrease the emission of green house gases

Explanation:

The question is not complete

a) Pie chart is the graphical representation of information in which the information is represented in a circle. The circle is divided into segments and the portion with the largest segment has the highest percentage.

To determine the facilities that contribute the most to recycling check the pie chart and select the facility with the largest portion while to determine the facilities that contribute the least to recycling check the pie chart and select the facility with the smallest portion

b) Extraction and processing of raw resources to make end products requires a lot of energy.  With recycling energy is saved because the products which are recycled usually require less energy to turn them into usable materials

c) It saves energy through recycling. It helps sustains the environment. It decrease the emission of green house gases.

6 0
3 years ago
Consider the reaction 3X + 2Y → 5C + 4D
Aloiza [94]

This problem is providing a chemical equation between two hypothetical elements, X and Y and asks for the moles of X that are needed to produce 21.00 moles of D in excess Y. After the following work, the answer turns out to be 15.75 mol X:

<h3>Mole ratios:</h3><h3 />

In chemistry, one the most crucial branches is stoichiometry, which allows us to perform calculations with grams, moles and particles (atoms, molecules and ions). It is based on the concept of mole ratios, whereby the moles of a specific substance can be converted to moles of another one, say product to reactant, reactant to reactant, reactant to product and product to product.

<h3>Calculations:</h3>

In such a way, since 21.00 moles of D are given, we need the mole ratio of D to X in order to get the answer, which according to the reaction is 3:4 based on their coefficients in the reaction. Hence, we calculate the required as follows:

21.00molD*\frac{3molX}{4molD} =15.75molX

Learn more about mole ratios: brainly.com/question/15288923

7 0
3 years ago
Which reaction will occur?
mart [117]
<span>You have to use an activity series and then predict which metal by itself will replace the metal inside of the compound. These all appear to be single replacement reactions.</span>
7 0
3 years ago
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What is skeleton?<br>Write any two function of skeleton .​
KatRina [158]
Your body's skeletal system serves as a support structure. It is responsible for giving the body its structure, allowing mobility, producing blood cells, protecting organs, and storing minerals. The musculoskeletal system is another name for the skeletal system.
7 0
3 years ago
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