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love history [14]
4 years ago
7

HELPPP

Chemistry
1 answer:
kolbaska11 [484]4 years ago
6 0
B is the answer I think hope this helps
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Can someone use (biodiversity) in a sentence
solmaris [256]

Answer:

There is a lot of biodiversity in this seafloor.

Explanation:

Biodiversity is just the diversity in species and animals in a certain environment.

4 0
3 years ago
Write the chemical symbol for three different atoms or atomic cations with 22 electrons
damaskus [11]

Answer:

Explanation:

To write the chemical symbol for an atom or cation with 22 electrons, we must understand some few things about an atom.

An atom is made up of positively charged paticles called protons which are located in the nucleus. The neutrons do not have any charges and are they reside together in the nucleus with the protons.

Electrons are negatively charged particles which orbits the nucleus.

Titanium in its neutral state is the 22nd element on the periodic table and it has 22 electrons.

Vanadium is the the 23rd element on the periodic table. If it loses an electron, it becomes positively charged and it is a cation.

Chromium is the 24th element on the periodic table. A loss of two electrons makes the net electrons remaining on it 22.

The symbols are:

       ₂₂Ti

        ₂₃V¹⁺

        ₂₄Cr²⁺

6 0
4 years ago
A hydrated sample weighing 20.0 g is heated in a crucible at 250°C. After cooling the sample now has a weight of 16.5 g.
anzhelika [568]

Given parameters:

Weight of hydrated sample  = 20g

Temperature = 250°C

Weight after cooling  = 16.5g

Unknown:

Weight of water lost from the sample = ?

Solution:

The weight of water lost from the sample;

    Weight of water lost = Weight of hydrated sample - Weight of dry sample

    Weight of water lost = 20g - 16.5g  = 3.5g

% of water in the sample = \frac{mass of water}{mass of original sample}  x 100

  Input parameters solve;

                              = \frac{3.5}{20}  x 100

                               =17.5%

8 0
3 years ago
Plants make their own food and are not required to consume food for energy. Into which category does this characteristic cause p
shepuryov [24]

Answer:

Autotrophic or Producers

Explanation:

They are often called producers because they make their own food.

7 0
3 years ago
What is the H* concentration in a solution with a<br> pH of 1.25?<br> x 10" Mn=
NeX [460]

Answer:

[H+] = 0.0562 M

Explanation:

Message me for more help.

6 0
3 years ago
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