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Cerrena [4.2K]
3 years ago
7

Which of these items found on a food label IS NOT a food?

Chemistry
1 answer:
777dan777 [17]3 years ago
5 0

Answer:

the first one Calories

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a chemical company makes pure silver by reacting silver nitrate with Zinc. the company needs to make 800 grams of pure silver fo
shutvik [7]

The reaction between zinc and silver nitrate is

Zn + 2 AgNO3 \rightarrow  Zn(NO3)2 + 2 Ag

Moles of Zn = m /M = 599 /65 = 9.2 mol

Moles of AgNO3 = m /M = 1500 /169 = 8.87 mol

Silver nitrate is reacting completely to give silver

Thus, moles of Silver nitrate is equivalent to silver = 8.87

For mass of silver produced

m /M = 8.87 = m /107

m = 949.24 g

Hence, the given quantity of reactants are sufficient to produce 800 g of silver as the amount of silver produced is 949.24 g

3 0
4 years ago
Arrange the following oxides in order of increasing acidity.
zmey [24]

Answer:

Based on the Modern Periodic table, there is an increase in the electropositivity of the atom down the group as well as increases across a period. On comparing the electropositivities of the mentioned oxides central atom, it is seen that Ca is most electropositive followed by Al, Si, C, P, and S is the least electropositive.  

With the decrease in the electropositivity, there is an increase in the acidity of the oxides. Thus, the increasing order of the oxides from the least acidic to the most acidic is:  

CaO > Al2O3 > SiO2 > CO2 > P2O5 > SO3. Hence, CaO is the least acidic and SO3 is the most acidic.  

5 0
3 years ago
Examine the reaction equation. Mg(OH)2(s) + HCl(aq) →H2O(l) + MgCl2(aq) What coefficients will balance the equation? A) 2, 4, 2,
r-ruslan [8.4K]

Answer:

D

Explanation:

1, 2, 2, 1

6 0
3 years ago
Read 2 more answers
What is a human event that can cause an increase in freshwater algae growth ? Please help
coldgirl [10]
Farm water runoff, which causes nitrogen rich fertilizer to be washed into the body of water. The nitrogen feeds the algae bloom.. Hope this helps
8 0
3 years ago
Calculate the mass (g) of 1.5 moles of Sulfur. ​
just olya [345]

Answer:

48 g S

Explanation:

Step 1: Define

Molar Mass of Sulfur (S) - 32.07 g/mol

Step 2: Use Dimensional Analysis

1.5 \hspace{3} mol \hspace{3} S(\frac{32.07 \hspace{3} g \hspace{3} S}{1 \hspace{3} mol \hspace{3} S} ) = 48.105 g S

Step 3: Simplify

We have 2 sig figs.

48.105 g S ≈ 48 g S

7 0
3 years ago
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