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Westkost [7]
3 years ago
5

Answer the following problem-

Chemistry
1 answer:
Helen [10]3 years ago
3 0

Answer:

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Explanation:

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What is the molarity of a 800. mL solution of magnesium bromide if 57.42 g of MgBr2 is dissolved in water?
defon
Molar mass magnesium bromide (MgBr2) = 184 g/mole
0.0939 mol/L x 0.720 L = 0.06761 moles MgBr2 required
0.06761 moles x 184 g/mole = 12.4 grams MgBr2 required (to 3 significant figures)
5 0
3 years ago
2 A + 4 B → 2 C How many mol of B must react with excess A to produce 2 mol of C?
asambeis [7]

Answer:

4 mol B

Explanation:

Step 1: Write the balanced generic equation

2 A + 4 B → 2 C

Step 2: Establish the appropriate molar ratio

According to the balanced equation, the molar ratio of B to C is 4:2.

Step 3: Calculate the moles of B needed to produce 2 moles of C

2 mol C × 4 mol B/2 mol C = 4 mol B

8 0
3 years ago
In most animals, combinations of various tissues make up<br> functional units<br> called
Anna71 [15]

Answer:

Animal tissues are grouped into four basic types: connective, muscle, nervous, and epithelial. Collections of tissues joined in units to serve a common function compose organs.

Explanation:

6 0
3 years ago
The energy exchanges between space, the atmosphere, and Earth’s surface produce what
Sauron [17]
The energy exchanges between space,the atmosphere and the Earth surface produce Weather and Climate
7 0
3 years ago
Read 2 more answers
Palmitic acid, derived from palm oil, is one of the most common fatty acids found in butter, cheese, milk, and meat.
Pie

Answer:

a. True

Explanation:

Palmitic acid is the acid found in animals and plants. It is the saturated acid that contains fats. It is extracted from palm oil and from fat sources like butter, cheese, milk and meat. It is added in milk with low fat content to add Vitamin A in it. The fat content of palmitic acid is very high. excessive consumption of palmitic acid leads to heart diseases and life risks.

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3 years ago
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