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fgiga [73]
3 years ago
12

Which geologic time did humans exist

Chemistry
2 answers:
umka2103 [35]3 years ago
4 0

Answer:

B

Explanation:

because its says mesozoic era

Phantasy [73]3 years ago
3 0
Humans exist in the mesozoic era
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K2Te+ Fe(HCO3)2------&gt; KHCO3 + Fe Te<br> how do you balance the equation?
ololo11 [35]

Hey there!

K₂Te + Fe(HCO₃)₂ → KHCO₃ + Fe + Te

Start by balancing HCO₃ since it's a polyatomic ion.

Two on the left, one on the right. Add a coefficient of 2 in front of KHCO₃.

K₂Te + Fe(HCO₃)₂ → 2KHCO₃ + Fe + Te

Balance K .

Two on the left, two on the right. Already balanced.

Balance Te.

One on the left, one on the right. Already balanced.

Balance Fe.

One on the left, one on the right. Already balanced.

Our final balanced equation:

K₂Te + Fe(HCO₃)₂ → 2KHCO₃ + Fe + Te

Hope this helps!

4 0
3 years ago
What is the freezing point of a solution of 0.500 mol of sucros in 500.0 mL of water?
andrew11 [14]

The freezing point would be 3.72 *C  

8 0
3 years ago
Advantages and disadvantages of titration?
alisha [4.7K]

Answer:

What are the advantages of titration?

Titrimetric analysis commonly referred to as volumetric analysis offers distinct advantages over cumbersome gravimetric methods:

Speed of analysis.

Instantaneous completion of reactions.

Greater accuracy due to minimization of material loss involved in decanting, filtration, precipitation or similar operations.

Explanation:

Disadvantages

It is a destructive method often using up relatively large quantities of the substance being analysed.

It requires reactions to occur in a liquid phase, often the chemistry of interest will make this inappropriate.

It can produce significant amounts of chemical waste which has to be disposed of.

It has limited accuracy.

<em>hope </em><em>this </em><em>helps </em><em>Plea</em><em>se</em><em> </em><em>inform</em><em> </em><em>me</em><em> </em><em>if</em><em> </em><em>its</em><em> </em><em>help</em><em>ful</em><em> </em>

5 0
3 years ago
Determine what type of compound is shown below:
34kurt

Answer:

Polar

Explanation:

Methanol is not electrostatic

It's not metallic as it has no metals in it

It's not ionic as coordinate bonding is made.

It's polar as a lone pair is present over OH-

3 0
2 years ago
How many times it takes to become a habit?​
Hatshy [7]
It takes 28 days to form a habit
6 0
4 years ago
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