All categories

3 years ago

Why were the sample of salt and sand placed into 50-ml beakers prior to weighing?

1 answer:

7 0

Answer : Salt and Sand are weighed and kept in different 50 Milliliter beakers because, the experiment is about studying and separating the homogeneous mixture. As salt crystals are cubic and sand grains are rounded oblong grains. If we mix it together it would require a physical method to separate them. So, before starting the experiment it needs to be weighed in different beakers.

You might be interested in

To the nearest 0.5 mL, what is the water volume in the graduated cylinder? mL?

AnnZ [28]

Answer:

14cm^3

Explanation:

6 0

3 years ago

If a 325 mL container of He gas with apressure of 0.8 atm increases its pressure to 1.5 atm, what is the resulting volume of the

Shalnov [3]

It’s still the same don’t let it get to i

8 0

3 years ago

How do i find a ionic formula? for example Ca2+ & S2-

jeka94

Example #1 write the chemical formula for Calcium Oxide

Step 1

-Find the Atomic symbol of the metal and non-metal on the periodic table

CaO

Step 2

Find the charges for Calcium and Oxygen

which are Ca 2+ and O 2-

Step 3

Balance out the charges

They are already balanced out

Here´s the chemical formula for Calcium Oxide

CaO

Example 2 write the chemical formula for Aluminum Oxide

Step 1

-Find the Atomic symbol of the metal and non-metal on the periodic table

Step 2

Find the charges for Aluminum and Oxygen

Which are Al 3+ and O 2-

Step 3

Balance out the charges

You need 2 Aluminum and 3 Oxygen to balance the charges

Al 3+ O 2-

= 6 + O 2-

= 6-

Step 4

If you need more then one element to balance out the charges you identify that by using subscripts

Heres your chemical formula for Aluminum Oxide

$Al_{2} O_{3}$

8 0

3 years ago

How water deposits soil sediment and rock

Oliga [24]

Water deposits soil ,sediments ,and rock by moving them to a different place .Say like a beach .The ocean is currently moving the bits of sand and (glass:sand)rock pieces and always ending up in new places.Same as a river.!!!!

6 0

4 years ago

^^^ AHH HELPOP ASAPP

Liula [17]

The apparent effects of the gravity of unseen matter on visible objects

3 0

3 years ago