3 years ago

Which statement is most likely a scientific law?

Chemistry

2 answers:

Annette [7]3 years ago

6 0

Answer:

we need to see the statements

Explanation:

Nadya [2.5K]3 years ago

5 0

Answer:

C) the oldest layers of rock lie below newer layers of rock on earth

Explanation:

i did the test ;P

You might be interested in

True or false(Internal forces act on the outside of an object, and external forces act within an object.)

kkurt [141]

False I’m not sure exactly

4 0

3 years ago

What two particles must a substance particles exhibit in order to conduct electricity

Tom [10]

Answer:

electron (-) and proton (+)

5 0

3 years ago

A certain gas is present in a 15.0 LL cylinder at 2.0 atmatm pressure. If the pressure is increased to 4.0 atmatm the volume of

Helga [31]

Explanation:

According to Boyle's law, pressure of a gas is inversely proportional to its volume at constant temperature and moles.

Mathematically, P = $\frac{k}{V}$

where, k = proportionality constant

Also, formula for initial pressure and volume is as follows.

$P_{i} = \frac{k_{i}}{V_{i}}$

or, $k_{i} = P_{i} \times V_{i}$

= $2 atm \times 15 L$

= 30 atm L

Now, we will calculate the value of $k_{f}$ as follows.

$k_{f} = P_{f} \times V_{f}$

= $4 atm \times 7.5 L$

= 30 atm L

Hence, as $k_{i} = k_{f}$ this means that it signifies that gas obeys boyle's law.

6 0

4 years ago

(HELP FAST)Which of the following always changes when a substance undergoes a<br> chemical change?

Lera25 [3.4K]

I’m pretty sure it’s a

7 0

3 years ago

Read 2 more answers

Malic acid, C4H6O5, has been isolated from apples. Because this compound reacts with 2 molar equivalents of base, it is a dicarb

Flura [38]

Answer and explanation:

The attached figure shows five different structures for the chemical formula C4H5O5, but only one of these structures represent the malic acid.

Malic acid is a dicarboxylic acid, this means malic acid has two

-COOH groups. Also, malic acid is a secundary alcohol, which means it has a R2-C-OH group.

-Structure A has two carboxylic groups, but it doesn´t have a secundary alcohol.

-Structure B doesn´t have any caborxylic group.

-Structure C has two carboxylic groups and it is a secundary alcohol. Structure C is the Malic acid

4 0

3 years ago