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2 years ago

What is the Newton's fourth law

Chemistry

2 answers:

Bad White [126]2 years ago

6 0

Answer:

the law says the temperature difference between two objects falls exponentially.

doesn't change in time and no heating or cooling would happen.

nataly862011 [7]2 years ago

5 0

<u>"But that fig's got roots that run deep, and it belongs in that yard as much as that oak and walnut... It don't give up. It give up, it'll die. There's a lesson to be learned from that little tree, Cassie girl, 'cause we're like it. We keep doing what we got, and we don't give up. We can't."</u>

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The answer is C...........

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What is the first thing you should do if there is an accident during a lab activity

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2 years ago

Read 2 more answers

A rock has a density of 3.75g/cm3 and a mass of 26g. What is the volume of the rock?

Lemur [1.5K]

Answer:

<h3>The answer is 6.93 cm³</h3>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

$volume = \frac{mass}{density} \\$

From the question we have

$volume = \frac{26}{3.75} \\ = 6.93333333...$

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2 years ago

Hydrogen peroxide can decompose to water and oxygen by the following reaction

mestny [16]

To begin calculating, there is one thing you need to remember : $1 mole of H2O2=34.0148 g$
Then we have $5.00g of H2O2=5/34.0148=0.146995$
As you know decomposition of 2moles now has prodused <span>196kj
So, </span><span>q is made due </span> $0.146995 moles of H2O2$ $=(-196/2)*0.146995=-14.40551Kj$
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2 years ago

The Goodyear blimp contains 5.7 x 10^6 L of helium at 25 degrees Celsius and 1 atm. What is the mass in grams of the helium insi

anygoal [31]

Answer:

1.72x10⁻⁵ g

Explanation:

To solve this problem we use the PV=nRT equation, where:

P = 1 atm

V = 5.7x10⁶ L

n = ?

R = 0.082 atm·L·mol⁻¹·K⁻¹

T = 25 °C ⇒ (25+273.16) = 298.16 K

And we <u>solve for n</u>:

1 atm * 5.7x10⁶ L = n * 0.082 atm·L·mol⁻¹·K⁻¹ * 298.16 K

n = 4.29x10⁻⁶ mol

Finally we <u>convert moles of helium to grams</u>, using its <em>molar mass</em>:

4.29x10⁻⁶ mol * 4 g/mol = 1.72x10⁻⁵ g

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2 years ago

What is the Newton's fourth law​

What is the Newton's fourth law