4 years ago

A pure substance is anything that cannot be broken down or separated by _______________ means?

Physics

2 answers:

maxonik [38]4 years ago

6 0

Answer:

Explanation:

An element is a pure substance which cannot be broken down into anything simpler by chemical methods. Most elements consist of a mixture of isotopes and so are not pure substances. Isotopes of an element can be separated by physical methods such as diffusion and mass spectrometry.

MatroZZZ [7]4 years ago

3 0

Answer: Physical is the blank space

Explanation: Your welcome

You might be interested in

Which are true about the proton?

Scrat [10]

Answer:

Explanation:

bIrish Kaleb picked Lucian usual

4 0

3 years ago

Read 2 more answers

Please ans both urgent

Tpy6a [65]

Answer:

d I guess not sure

b if down I guess

Explanation:

if worng then plz dont say anything as I am not sure about the ans

4 0

3 years ago

Read 2 more answers

What is the approximate pressure of air at sea level?

Len [333]

My guess would be 101 kPa but I'm not 100% sure, sorry.

4 0

4 years ago

Read 2 more answers

HELP!!

Maru [420]

In exothermic/exergonic reactions, reactants have greater energy(Gibbs-Free Energy) than the products. This energy determines how much mechanical work a system can do

5 0

3 years ago

One strategy in a snowball fight is to throw a snowball at a high angle over level ground. While your opponent is watching this

Ne4ueva [31]

Answer:

In order to hit the same point with the second ball, you should throw it at an angle of 18° above the horizontal.

Explanation:

Horizontal reach formula for projectiles tells us

$d=\frac{v_i^2\sin(2\theta)}{g},$

where $v_i$ is the initial velocity and $\theta$ the angle above the horizontal.

Since for both shots the reach must be the same, we have

$\frac{v_i^2\sin(2\theta_1)}{g}=\frac{v_i^2\sin(2\theta_2)}{g}\\\sin(2\theta_1)=\sin(2\theta_2)\\\theta_2=\frac{1}{2}\arcsin(\sin(2\theta_1))=\frac{1}{2}\arcsin(\sin(2\times 72\deg))=\mathbf{18\deg}$ .

8 0

4 years ago