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BabaBlast [244]
4 years ago
9

If it takes 645 J of energy to warm a 5.51-g sample of water, how much energy would be required to warm 55.1 g of water by the s

ame amount?
Chemistry
1 answer:
hjlf4 years ago
4 0

Answer:

Explanation:If 5.51 g of water needs 645 J of energy to warm then 55.1 g of water needs 6450 J of energy to warm.

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A 500.0 g sample of an element at 153.0 °C is dropped into an ice-water mixture. 109.5 g of ice melts and there is still an ice
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I uploaded the answer to a file hosting. Here's link:

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8 0
3 years ago
A can of coke contains 25 mL of carbon dioxide gas at 100kPa. If you take it on a hike up Mount Everest and the pressure decreas
Mazyrski [523]

Answer:

50 mL

Explanation:

We can solve this problem by using Boyle's Law, which states that:

"For a fixed mass of an ideal gas kept at constant temperature, the pressure of the gas is inversely proportional to its volume"

Mathematically:

p\propto \frac{1}{V}

where

p is the pressure of the gas

V is the volume of the gas

The equation can be rewritten as

p_1 V_1 = p_2 V_2

where in this problem:

p_1 = 100 kPa is the initial pressure of the gas in the coke

V_1=25 mL is the initial volume

p_2=50 kPa is the final pressure

Solving for V2, we find the final volume:

V_2=\frac{p_1 V_1}{p_2}=\frac{(100)(25)}{50}=50 mL

7 0
4 years ago
Which branch of chemistry deals with plastics
horrorfan [7]
Hey There!

Plastics<span> is  covered by the </span>branches<span> of Material science :) </span>
7 0
4 years ago
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Which of the following could be the rate equation for a first order reaction? please help this is timed
wel

Rate = k[A] = first order reaction

<h3>Further explanation</h3>

Given

Rate law

Required

A first-order reaction

Solution

The rate law : equation for the rate of chemical reaction

For reaction

aA + bB ⇒ C

The rate : r = k[A]ᵃ[B]ᵇ

The sum of exponents(a+b) is the reaction order

From the choice :

a. a+b = 2, second order reaction

b. a+b = 3, third order reaction

c. a+b = 4, fourth order reaction

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7 0
3 years ago
Before you can solve a problem, the first thing you have to do is Question 2 options:
padilas [110]
A) Define the problem
Because it’s the most logical thing to do. Sorry if I’m wrong
5 0
3 years ago
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