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nevsk [136]
3 years ago
11

HELP PLS (CHEMISTRY)

Chemistry
1 answer:
IRINA_888 [86]3 years ago
4 0

The first most obvious thing to note is when naming transitional metals, you have to state its charge with roman numerals (except for 1 if I remember correctly). For example, Iron (lll), iron has a charge of 3.

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Salsk061 [2.6K]
1) CH2 (gas) + Br (solid) -> BrC (solid) + H2 (gas)
2) a) CH4 + Br2 -> CH3Br + HBr
2) b) methane + bromine is substitution because one hydrogen atom from methane is replaced by one bromine atom. addition reaction takes place when one molecule combines with another to form a larger molecule so therefore a molecule from X and bromine combine to form XBr.
6 0
2 years ago
Density is the relation between the mass and volume of a body ? <br> True or false?
Nuetrik [128]
I think it is true..
3 0
3 years ago
When a body is at rest, what do we call initial velocity
Anna11 [10]

Answer:

Initial Velocity is when movement begins. When a body is at rest, the initial velocity is at 0 m/s.

Explanation:

Initial Velocity is the velocity at time interval t = 0

3 0
2 years ago
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Calculate the density of a solid that has a volume of 2cm3 and a mass of 3g
katrin2010 [14]

Answer:

The density is 6

Explanation:

p = m × v

p = 3 × 2

p = 6

Hope this helped! :)

8 0
3 years ago
How does changing the mass of an object affect the density and the object if the volume is kept constant
vivado [14]

Explanation:

mass of an object affect the density and object if the the volume is keep constant.

here we can explain by using the example.

if the mass of an object is 30kg. and volume is 2m3

then density pf given substance is become 15kg/m3

again,

if the mass of the is 40kg/m3 and volume is same

then density is become 20kg/m3 (formula=kg/m3)

here above density and below density is becime different by changing the mass of an object and affect the density and objecy although volume is kept constant or same

7 0
3 years ago
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