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kogti [31]
3 years ago
6

Chemical reactions happen when

Chemistry
1 answer:
Anon25 [30]3 years ago
7 0

Answer:

Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products

Explanation:

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A 3.25 L solution is prepared by dissolving 285 g of BaBr2 in water. Determine the molarity.
Effectus [21]

Answer:

0.295 mol/L

Explanation:

Given data:

Volume of solution = 3.25 L

Mass of BaBr₂ = 285 g

Molarity of solution = ?

Solution:

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

Molarity = number of moles of solute / L of solution

Number of moles of solute:

Number of moles = mass/ molar mass

Molar mass of BaBr₂ = 297.1 g/mol

Number of moles = 285 g/ 297.1 g/mol

Number of moles= 0.959 mol

Molarity:

M = 0.959 mol / 3.25 L

M = 0.295 mol/L

5 0
3 years ago
What is the pH of a 0.1M basic solution? <br><br> A. 7 <br> B. 0<br> C. 1<br> D. 13
Cloud [144]
C is the correct answer
4 0
3 years ago
How many grams are there in 4.50 moles of Ba(NO2)2
Lelu [443]

Answer:

1031.85 grams

Explanation:

Further explanation

https://socratic.org/questions/how-many-grams-are-there-in-4-50-moles-of-ba-no-2-2#:~:text=Therefore%2C%20there%20are%201031.85%20grams,(NO2)2%20.

7 0
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An element's atomic number is 7. How many protons would an atom of this element have?
rusak2 [61]

well the atomic number is 7 the number of protons is also equal to 7 .

hope this helps


8 0
3 years ago
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Blood plasma contains a total carbonate pool of 0.0252M.
zaharov [31]

Answer:

a what is the HCO3"/CO2 ratio

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