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skad [1K]
3 years ago
14

Which of the following statements is true? Question 5 options: Chemical reaction rates vary with the conditions of the reaction,

but nuclear decay rates do not. Both chemical reaction rates and nuclear decay rates vary with the conditions of the reaction. Neither chemical reaction rates nor nuclear decay rates vary with the conditions of the reaction. Nuclear decay rates vary with the conditions of the reaction, but chemical reaction rates do not.
Chemistry
1 answer:
vitfil [10]3 years ago
6 0
 Both chemical reaction rates and nuclear decay rates vary with the conditions of the change.
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given that the speed of light is 2.998 x 108 m/s, what is the frequency of a wave that has a wavelength of 3.55 x 10-8 meters
Vesna [10]
Frequency, f = v / λ

f = 2.998 * 10⁸ / 3.55*10⁻⁸

f = 8.445 * 10¹⁵ Hz.
8 0
3 years ago
A hydrate is compound that included water molecules within its crystal structure. During an experiment to determine the percent
stellarik [79]

Answer:

The percent by mass of water in this crystal is:

  • <u>21.4%</u>

Explanation:

This exercise can be easily solved using a simple rule of three where the initial weight of the hydrated crystal (6,235 g) is taken into account as 100% of the mass, and the percentage to which the mass of 4.90 g corresponds (after getting warm). First, the values and unknown variable are established:

  • 6,235 g = 100%
  • 4.90 g = X

And the value of the variable X is found:

  • X = (4.90 g * 100%) / 6,235 g
  • X = approximately 78.6%.

The calculated value is not yet the percentage of the water, since the water after heating the glass has evaporated, therefore, the remaining percentage must be taken, which can be calculated by subtraction:

  • Water percentage = Total percentage - Percentage after heating.
  • <u>Water percentage = 100% - 78.6% = 21.4%</u>
4 0
3 years ago
Read 2 more answers
Suppose that a certain fortunate person has a net worth of $77.0 billion ($). If her stock has a good year and gains $3.20 billi
marissa [1.9K]

Answer:

New net worth to three significant figures = $80.2 billion

Dollars are given to charity = $100,250,000

Explanation:

Net worth = $77.0 billion

stock Gains = $3.20 billion

New net worth = $77.0 billion + $3.20 billion = $80.20 billion

New net worth to three significant figures = $80.2 billion

One-eighth of a percent = (1/8 x 1) / 100 = 0.00125

Dollars are given to charity = 0.00125 X $80.2 billion = $100,250,000

Or

$80,200,000,000/100 = $802,000,000

3 0
3 years ago
Need help answering this question
a_sh-v [17]

Answer:

1st = saturated

Explanation:

Bro first ka answer saturated he

4 0
2 years ago
The game of kickball begins with the ball being rolled toward a player. The player then kicks the ball across the field. What is
hammer [34]

Answer:

C. The Speed of the ball depends on the force used to kick it.

Explanation:

6 0
3 years ago
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