Space exploration thus supports innovation and economic prosperity by stimulating advances in science and technology, as well as motivating the global scientific and technological workforce, thus enlarging the sphere of human economic activity.

6 0

3 years ago

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What are the reaction types for the following?

Bingel [31]

Answer:

1. decomposition

2. combustion

3.single replacement

4. combination

5. double replacement

Explanation:

1. one compound is split into 2 elements

2. co2 and h20 was the product of the reaction

3. cu is replaced with co

4. 2 compounds become one compound

5. ca is replaced with na and na is replaced with ca

6 0

3 years ago

Find the pH of a solution whose H+ concentration is 1.8 x 10-12

frutty [35]

Answer:

11.74

Explanation:

The formula to find the pH of a solution is..

pH = -log [H⁺]

pH = -log [1.8×10¹²]

pH = 11.74

The answer would be to 2 decimal places because the concentration is two significant digits.

8 0

3 years ago

At 20 °C, a saturated aqueous solution of silver acetate, AgCH3CO2, contains 1.0 g of silver compound dissolved in 100.0 mL of s

tester [92]

Answer:

Ksp = 0.0036.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to calculate the Ksp of the silver acetate, by knowing that its equilibrium expression is:

$Ksp=[Ag^+][CH_3COO^-]$

Next, we calculate molar concentration of the ions in the solution, the same to that of the acetate ions, due to the 1:1 mole ratio, as follows:

$[Ag^+]=[CH_3COO^-]=\frac{1.0g/(166.9122 g/mol)}{0.1000L} =0.0600M$

Therefore, the Ksp is:

$Ksp=0.0036$

Regards!

4 0

3 years ago