All categories

4 years ago

Plzzzzz helpppp fast asfffff How do we classify matter ? Identify at least 3 example from each category

Chemistry

1 answer:

RSB [31]4 years ago

4 0

If ur talking about matter phases then it would i think be liquid, solid & gas but if you’re talking about classifying matters then hopefully this picture helps

You might be interested in

What is the smallest part of an element that still retains properties of that element?

Leni [432]

The smallest part is the atom

4 0

3 years ago

Read 2 more answers

A 1.00 L volume of HCl reacted completely with 2.00 L of 1.50 M Ca(OH)2 according to the balanced chemical equation below. 2HCl

wolverine [178]

Answer:

$\boxed{\text{6.00 mol/L}}$

Explanation:

(a) Balanced equation

2HCl + Ca(OH)₂ ⟶ CaCl₂ + 2H₂O

(b) Moles of Ca(OH)₂

$\text{Moles of base} = \text{2.00L} \times \dfrac{\text{1.50 mol}}{\text{1 L}} = \text{3.000 mol base}$

(c) Moles of HCl

$\text{Moles of HCl} = \text{3.000 mol base} \times \dfrac{ \text{2 mol HCl}}{\text{1 mol base}} = \text{6.000 mol HCl}$

(d) Molar concentration of HCl

$\text{Molar concentration} = \dfrac{\text{moles of solute}}{\text{litres of solution}}\\\\c = \dfrac{ n }{ V}\\\\c= \dfrac{ \text{6.000 mol}}{ \text{1.000 L}} = \text{6.00 mol/L}$

The molar concentration of the HCl was $\boxed{\textbf{6.00 mol/L}}$

6 0

4 years ago

Read 2 more answers

For the reaction A+B↽−−⇀C+D, assume that the standard change in free energy has a positive value. Changing the conditions of the

77julia77 [94]

Explanation:

a. Adding a catalyst

no effect .( Catalyst can only change the activation energy but not the free energy).

b. increasing [C] and [D]

Increase the free energy .

c. Coupling with ATP hydrolysis

decrease the free energy value .

d.Increasing [A] and [B]

decrease the free energy.

7 0

3 years ago

PLEASE HELP!!!!!!!))

Vedmedyk [2.9K]

No e e jd si u shl use

6 0

3 years ago

Read 2 more answers

Help please! It’s the pmas

umka21 [38]

Answer:

choice 3

Explanation:

homeostasis is the ability of an organism to remain in balance so for two systems two show homeostasis pick the choice that shows two separate systems working together for a common goal in this case breathing.

6 0

3 years ago