Help plez this was due yesterday

Chemistry

1 answer:

Anna11 [10]2 years ago

5 0

Prokaryotic cells are unicellular
Eukaryotic cells are multicellular
Plant and animal cells are prokaryotic and eukaryotic because ↓
Prokaryotic cells- plants cells
Eukaryotic cells- animals cells
I am pretty sure that prokaryotic and eukaryotic cells are considered to be living due to the cell theory because the cell theory states that all living things are made of cells.

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I'm not really sure on how to test if it is a chemical or physical change....

kolezko [41]

Chemical change because it cannot be reversed

4 0

3 years ago

In Chemistry, to be classified as an organic substance, a substance must contain

Natasha_Volkova [10]

I'm going on a limb here, but Carbon is a definite.

4 0

2 years ago

How many moles of carbon monoxide are there in 36.55 g of carbon monoxide?

Kitty [74]

You can find moles of a substance by dividing mass by the molecules molar mass.

Explanation:

Carbon Monoxides Molar mass is 12.0111 (Carbon) + 16.0000 (Oxygen) = 28.0111g/mol. Divide grams by molar mass:

36.55g28.0111=1.305mols

3 0

2 years ago

Most elements are ____________. The _____________ elements on the left of the stair-step line on the ______________ of Elements

Vlada [557]

Answer:

metals, 88 , periodic table , luster , heat, electricity , thin, right, opposite , appearance , luster , malleable , ductile, opposite , shiny, moderately

Explanation:

metals, 88 , periodic table , luster , heat, electricity , thin, right, opposite , appearance , luster , malleable , ductile, opposite , shiny, moderately Is the answer.

(Hope this helps can I pls have brainlist (crown)☺️)

4 0

2 years ago

53. Which of the following is NOT a correct interpretation of CH2O, the formula of the compound formaldehyde?

Free_Kalibri [48]

Answer:

B There are two grams of hydrogen for each gram of carbon in this compound.

Explanation:

The second option is a wrong interpretation of this chemical representation of formaldehyde.

Formaldehyde is an organic compound with the formula CH₂O.

As this is the simplest formula of the compound, it is the empirical formula. Also, the formula is the actual one for the compound and it is the molecular formula.

Chemically, the formula shows 1 mole of carbon, 2 moles of H and 1 mole of oxygen in the compound.

A mole of a substance is more a less a unit of measurement in chemistry and it is the amount of substance that contains the avogadro's number of particles.

This ratio is not the mass of chemical species in the compound. You cannot tell the mass of elements in a compound by merely looking at the formula.

7 0

3 years ago