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Vesna [10]
3 years ago
9

A gravel can be broken down into different kinds of substances by physical processes. No chemical reactions are needed to separa

te different parts of gravel into pure substances. This is because gravel is a(n)
compound
element
homogeneous mixture
heterogeneous mixture
Chemistry
2 answers:
butalik [34]3 years ago
6 0

answer:

heterogenous mixture

Explanation:

lukranit [14]3 years ago
5 0

Answer:

heterogenous mixture

Explanation:

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Which of the following is the highest level of organization (least specific)? a. genus c. family b. class d. order
yKpoI14uk [10]
Hello

Your answer would be:

a. genus
4 0
3 years ago
True/False –Similar to liquids, gases cannot be compressed.
weeeeeb [17]

Answer:

False

Explanation:

A liquid has a definite shape and takes on the volume of its container. A gas has both the shape and the volume of its container. The particles in a gas cannot be compressed into a smaller volume. Liquids tend to contract when heated.

Hope this helps

3 0
3 years ago
A percent composition analysis yields
siniylev [52]

Answer:

PCl₃

Explanation:

To determine the empirical formula of a compound, we need to follow a series of steps.

Step 1: Divide each percent composition by the atomic mass of the element

P: 22.6/30.97 = 0.729

Cl: 77.4/35.45 = 2.18

Step 2: Divide all the numbers by the smallest one, i.e. 0.729

P: 0.729/0.729 = 1

Cl: 2.18/0.729 ≈ 3

The empirical formula of the compound is PCl₃.

3 0
3 years ago
How did satellite tracking allow biologists to study the green sea turtle?
Rasek [7]

<u>Answer:</u>

It helped biologists collect data on when and where turtles travel.

<u>Explanation:</u>

Green sea turtles need to be conserved so the biologist take help of satellites in order to track down green sea turtles.

The tracking of green sea turtles can be done by the help of satellites as satellites send a signal whenever these turtles come to surface of water to breathe which can then be used to prevent the turtles from getting caught by poachers.

4 0
3 years ago
Read 2 more answers
PbCl2s) + Cl2g -<br> + PbCl40)<br> ΔΗ = ?
ludmilkaskok [199]

Answer:

ichedgepeth

Explanation:

beginner because it's tough than other things

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