3 years ago

Question 4 (Mandatory) (3 points)

Chemistry

2 answers:

Andru [333]3 years ago

5 0

That would elements, elements are the most basic form

Molodets [167]3 years ago

3 0

It’s an element because elements are a form of pure substance.

You might be interested in

3. How did earthquakes help scientists to understand the structure of the earth's crust?

Fantom [35]

Answer:

i hace no idea sorry

Explanation:

i do motor know the awnser

4 0

3 years ago

The small intestine shown below contains lymphatic vessels but no capillaries. Which nutrient will be absorbed by this small int

Bumek [7]

Answer:

fatty acids

Explanation:

8 0

3 years ago

Read 2 more answers

Why do different chemicals emit different colors of light?

Mama L [17]

Answer:

Because no two elements have the same set of energy levels, different elements emit different colors of light. Energy is released when electrons move from higher energy levels to lower ones (visible light).

Explanation:

5 0

3 years ago

Una sola dosis de etanol, C2 H5 OH, eleva el nivel intracelular de iones calcio. Los iones Ca2+ liberados por el etanol 0,10 M m

11Alexandr11 [23.1K]

Answer:

No se bro cual se la respuesta .......

Explanation:

lo siento(

4 0

3 years ago

If 125 grams of Cu reacts 75 grams of HNO3, how many grams of Cu(NO3) form?

melisa1 [442]

Answer: 37.5grams of Cu(NO3)2

Cu(1mol) + 2HNO3(2mol) —> Cu(NO3)2 + H2

125 grams of Cu(1mol) reacts with 75 grams of HNO3(2mol)

HNO3 is the limiting substance, therefore, 75 grams is the limiting quantity.

Therefore, 2mol of HNO3 forms 1mol of Cu(NO3)2

75 grams of HNO3 forms...75grams x 1mol/2mol = 37.5 grams of Cu(NO3)2

3 0

3 years ago