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Natasha2012 [34]
4 years ago
14

Determine whether each statement is a description of a physical property or a chemical property.

Physics
2 answers:
finlep [7]4 years ago
6 0

1. Sodium metal reacts vigorously with water to produce hydrogen gas.

Chemical. A chemical property can only be observed by changing the chemical identity of a substance.

2. Steel is attracted to magnets.

Physical. A physical property is is an aspect of matter that can be observed or measured without changing its chemical composition.

Serjik [45]4 years ago
3 0

Answer:

chemical & physical

Explanation:

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marusya05 [52]

Answer:

B is the answer.

Explanation:

8 0
3 years ago
Take 100 points look the picture​
Marina86 [1]

Answer:

An aqueous stagnant layer that overlies the apical membrane and the subepithelial blood flow are potential barriers to the absorption of drugs that readily penetrate the absorbing cell of the epithelium. The apical, basal, and basement membranes are potential barriers to the absorption of less permeable drugs.

4 0
3 years ago
To understand the photoelectric effect physiciests should view light as having what type of properties?
fenix001 [56]

Answer:

Particle

Explanation:

To understand photoelectric effect the physicists has to view light as a particle and not wave. The wave nature of the light could not explain the phenomenon of photoelectric effect.

Photoelectric effect is emission of electrons from a material when electromagnetic radiation(Light) is incident on it. These emitted electrons are called photoelectrons.

The explain this effect Einstein proposed that beam of light is can not be a wave propagating through space, but a swarm of discrete energy packets, called as photons.

5 0
3 years ago
True<br> False<br><br> PLEASE HELP
harkovskaia [24]

Answer:

False

Explanation:

10 is not the same as -10 but if -10 is the absolute value they would be the  same

Give me brainllest

6 0
3 years ago
An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. What is the image height? (Indicate the obj
boyakko [2]

The image height is -10 cm (the image is upside down)

Explanation:

We can solve the problem by using the mirror equation:

\frac{1}{f}=\frac{1}{p}+\frac{1}{q}

where:

f = 5 cm is the focal length of the mirror

p = 10 cm is the distance of the object from the mirror

q is the distance of the image from the mirror

Solving for q, we find:

\frac{1}{q}=\frac{1}{f}-\frac{1}{p}=\frac{1}{5}-\frac{1}{10}=\frac{1}{10}\\\rightarrow q= 10 cm

So, the distance of the image from the mirror is 10 cm.

Now we can find the image height by using the magnification equation:

\frac{y'}{y}=-\frac{q}{p}

where

y' is the height of the image

y = 1 cm is the height of the object

and using

p = 10 cm

q = 10 cm

We find the size of the image:

y' = -\frac{qy}{p}=-\frac{(10)(1)}{10}=-10 cm

where the negative sign indicates that the image is upside down.

#LearnwithBrainly

8 0
3 years ago
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