2 years ago

Which statement about metals is true?

1 answer:

4 0

All metals are solid at (our) living temperatures except for mercury which is a liquid. Metals are shiny for a while at least when properly finished. Metals are good conductors of both heat and electricity. This is due to the excess electrons in their valence clouds that facilitate energy transfer.What are 5 characteristics of metal?

Metals are lustrous, malleable, ductile, good conductors of heat and electricity

Silver conducts electricity better than any other metal.

Brass is an alloy made from zinc and copper.

Pure gold is too soft for many things so most gold is combined with other metals to make it stronger. ...

World time periods are often listed by the metal used.

You might be interested in

which of the following cannot be increased by using a machine of some kind? work, force, speed, torque

Lemur [1.5K]

Explanation:

Work cannot be increased by using a machine of some kind.

8 0

2 years ago

Imagine a 10kg block moving with a speed of 20m/s. calculate the kinetic energy of this block

avanturin [10]

$E_{c}=\frac{mv^2}{2}=2000J$

7 0

2 years ago

Fred is conducting a controlled experiment to test whether using a grow light at night will help a tomato plant grow faster. Bel

PtichkaEL [24]

Answer:

the type of tomato plants used.

Explanation:

4 0

3 years ago

What happens to particles of the medium in a mechanical wave?

Karo-lina-s [1.5K]

They flow i guess but dont quote me on that

3 0

2 years ago

Read 2 more answers

The diffusion constant for oxygen diffusing through tissue is 1.0 × 10-11 m2/s. In a certain sample oxygen flows through the tis

Eduardwww [97]

Answer:

m' = 1 x 10⁻⁶ kg/s

Explanation:

Given that

Diffussion constant = 1 x 10⁻¹¹

Mass flow rate ,m = 2 x 10⁻⁶ kg/s

The diffusion is inversely proportional to the thickness of the membrane and therefore when the thickness is doubled, the mass flow rate would become half.

So new flow rate m'

$m'=\dfrac{m}{2}$

$m'=\dfrac{2\times 10^{-6}}{2}\ kg/s$

m' = 1 x 10⁻⁶ kg/s

6 0

2 years ago