What do you call anything that has mass and volume?

Chemistry

2 answers:

serg [7]2 years ago

5 0

A. matter is the correct answer~

lys-0071 [83]2 years ago

3 0

A. Matter. Matter makes up every physical thing in the universe. Everything in the universe takes up space and has mass, therefore, the best answer would be matter.

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_____________ can be described as the ‘skin’ on the surface of a liquid due to its cohesive forces.

Dmitrij [34]

Answer:

surface tension

Explanation:

4 0

2 years ago

Read 2 more answers

Given the reaction 2NO2 1/202 N2O5, what is the relationship between the rates of formation of N,0, and disappearance of the two

daser333 [38]

Answer:

$r=\frac{r(NO_{2})}{2} =\frac{r(O_{2})}{1/2}=\frac{r(N_{2}O_{5})}{1}$

Explanation:

Let us consider the reaction:

2 NO₂ + 1/2 O₂ ⇄ N₂O₅

The rate of formation of a substance is equal to the change in concentration of the product divided the change in time:

$r(N_{2}O_{5})=\frac{\Delta [N_{2}O_{5}] }{\Delta t}$

The rate of disappearance of a reactant is equal to to the change in concentration of the reactant divided the change in time, with a negative sign so that the rate is always a positive variable.

$r(NO_{2})=-\frac{\Delta[NO_{2}] }{\Delta t}$

$r(O_{2})=-\frac{\Delta[O_{2}] }{\Delta t}$

The rate of the reaction is equal to the rate of any substance divided its stoichiometric coefficient. In this way, we can relate these expressions:

$r=\frac{r(NO_{2})}{2} =\frac{r(O_{2})}{1/2}=\frac{r(N_{2}O_{5})}{1}$

8 0

2 years ago

a hydrogen-filled balloon was ignited and 1.60g of hydrogen reacted with 12.8g of oxygen. how many grams of water vapor were for

Anon25 [30]

2H2 + O2 ---> 2H2O

1 mole of H2 = 2g
1 mole of O2 = 32g
1 mole of H2O = 18g

according to the reaction:
2*2g H2---------------32g O2
1,6g H2----------------- x g O2
x = 12,8g O2

so reaction is stechiometric

32g O2---------------- 2*18g H2O
12,8g O2 -------------- x
x = 14,4g H2O

answer: 14,4g of water vapour

6 0

2 years ago

At 1023 K and 1 atm, a 3.00 gram sample of Snoz(s) (gram-formula mass = 151 g/mol) reacts with hydrogen gas to produce tin and w

Blizzard [7]

Answer:

2 moles of Sn are produced when 4 moles of H2(g) are consumed completely

Explanation:

to determine the number of moles of sn (l) produced when 4.0 moles of H2 (g) is consumed completely.

First, find the number of moles of H2 consumed by taking this as limiting reagent.

$n = \frac{g}{M.W (g/mol)}$