All categories

3 years ago

Is this right ? if it’s wrong correct me

Chemistry

2 answers:

Dimas [21]3 years ago

4 0

You can go to a website about that it will give you the answers

Shalnov [3]3 years ago

4 0

A website will be able to check your answers for you when doing periodic tables.

You might be interested in

A chemical reaction that removes electrons from an atom is called a(n) ________ reaction.

ch4aika [34]

A chemical reaction that removes electrons from an atom is called "Oxidation".
The term came from late 18th century from French.
When the electrons are removed from an atom it increase its valence.

3 0

3 years ago

In the nucleus, there are 36 protons and 36 neutrons

antoniya [11.8K]

And??????????????????

3 0

3 years ago

A rectangular block has the following dimensions: 3.21 dm, 5.83 cm, and 1.84 in. The block has a mass of 1.94 kg. What is the de

spin [16.1K]

The density of the rectangular block in g/mL is 7.0.

Given the following data:

Mass of block = 22.8 gra1.94 kg

Length of block = 3.21 cm

Width of block = 5.83 cm

Height of block = 1.84 in.

To find the density of the block in g/mL:

First of all, we would determine the volume of the rectangular block by using the following formula:

$Volume = length$ × $width$ × $height$

Conversion:

1 in = 2.54 cm

5.83 in = X cm

Cross-multiplying, we have:

$X = 2.54(5.83)\\\\X = 14.81 \; cm$

$Volume = 3.21$ × $5.83$ × $14.81$

Volume = 277.16 cubic centimeters.

Note: Milliliter (mL) is the same as cubic centimeters.

1000 grams = 1 kg

Y grams = 1.94 kg

Cross-multiplying, we have:

Y = 1940 grams

Now, we can find the density:

$Density = \frac{Mass}{Volume}\\\\Density = \frac{1940}{277.16}$

Density = 7.0 g/mL

Therefore, the density of the rectangular block in g/mL is 7.0.

4 0

3 years ago

A solution contains 11% by mass of sodium chloride. this means that __________.

d1i1m1o1n [39]

As a solution is contained with 11% by mass of sodium chloride, this will therefore conclude that the 100g of the solution is composed of the 11g of the sodium chloride. In which, the correct answer would be specified as letter c.

5 0

3 years ago

Are mass and *weight of matter* the same thing

Scorpion4ik [409]

Answer:

Mass is the quantity of an object.

Weight is the force with which the object is attached towards the earth.

Hope it helps

7 0

3 years ago

Read 2 more answers