All categories

2 years ago

Match the vocabulary with the definitions.

Chemistry

1 answer:

Fiesta28 [93]2 years ago

8 0

1: Decomposition reaction
2: Combination reaction
3: product
4: Reactant

You might be interested in

Help ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

svp [43]

its c with the older down the older it is

4 0

2 years ago

Read 2 more answers

Explain why atoms move at different speeds depending on whether they are in liquid or solid

Diano4ka-milaya [45]

Because in difrent materials atoms are more compact or less compact.if they are less compact then it will be easear for them to move

8 0

3 years ago

Read 2 more answers

Which phase of matter is distinguished by a superheated gas that emits light?

mariarad [96]

Answer:

I think it is Plasma

Explanation:

7 0

2 years ago

Which property do metalloids share with non metals?

mamaluj [8]

Answer:

their ability to conduct heat and electricity.

Explanation:

6 0

3 years ago

A rectangular block of solid carbon (graphite) floats at the interface of two immiscible liquids.

Sergio039 [100]

Explanation:

Let us take the volume of block is x.

Since, the block is floating this means that it is in equilibrium. Formula to calculate net force will be as follows.

$F_{net} = Buoyancy force(F_{b}) - weight force(w)$

Also, buoyancy force $(F_{b})$ = (volume submerged in water × density of water) + (volume in oil × density of oil)

$(F_{b})$ = $(0.592 V \times \rho) + (1 - 0.592)V \times 1000 g$

= $(0.592 V \times \rho + 408 V)$ g

As, W = V × density of graphite × g

It is given that density of graphite is $2.16 g/cm^{3}$ or 2160 $kg/m^{3}$ .

So, W = 2160 V g

$F_{net}$ = (0.592 V \rho + 408 V) g - 2160 V g = 0

$0.592 \rho$ = 1752

$\rho$ = 2959.46 $kg/m^{3}$ or 2.959 $g/cm^{3}$ is the density of oil.

It is given that mass of flask is 124.8 g.

Mass of 35.3 $cm^{3}$ oil = $35.3 \times 2.959$ 104.7 g

Hence, in second weighing total mass will be calculated as follows.

(124.8 + 104.7) g

= 229.27 g

Thus, we can conclude that in the second weighing mass is 229.27 g.

5 0

2 years ago