3 years ago

When two substances combine to form a mixture, the properties of the substances change. True False

2 answers:

8 0

Answer:

Tell students that sometimes when two (or more) substances are mixed together, a change occurs and another substance (or substances) is created. This is called a chemical reaction. Gas may form, heat may be produced, and color may change. These types of changes indicate that a chemical reaction has occurred.

Elanso [62]3 years ago

8 0

Answer:

vrygfyrgfygryfgyr

Explanation:

frrfvryvfurvfur

$t5t$

You might be interested in

A bat is swung at 5.5m/s. The bat weighs 6kg. What is the energy? ______ kg*m/s

andreev551 [17]

Answer:

Explanation:

3 0

3 years ago

2.5 moles of gas occupies 50 L, how many moles of the gas would occupy 100L?

goldenfox [79]

Answer:

Explanation:

2.5M=50L

X =100L

2.5MX100L

________ =250M/L

5OL 50L

=5 Moles

6 0

3 years ago

Sodium (Na) has an atomic number of 11 and an atomic mass of 23. Which of the following correctly shows the electron

Pepsi [2]

Answer:

soudioum has 12 electrons

6 0

3 years ago

Which element is classified as a noble gas?

NeTakaya

Answer:

The elements with completely filled shells are classified as noble gases

That is why we only see noble gases on the rightmost corner of the periodic table, it is because they have the maximum number of electrons in a shell

<u>Examples of noble gases</u>

Helium , Neon , Argon and Krypton are some examples of noble gases

6 0

3 years ago

How many molecules of fluorine are in one mole of fluorine

ycow [4]

Answer:

In 1 mol of anything, you have 6.02×10²³ particles, so 1 mol of F₂ contains 6.02×10²³ molecules.

7 0

4 years ago