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attashe74 [19]
3 years ago
11

Some species of moose are adapted to eat grasses and flowers in the summer and pine needles in the winter.

Chemistry
2 answers:
erastova [34]3 years ago
8 0
Taigas is ur awnser i think
grin007 [14]3 years ago
5 0

Answer:

B. Taigas

Explanation:

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AnnZ [28]
It is a decomposition reaction I think
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2 years ago
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Check all statements below that are true.
docker41 [41]

Answer:

The answers are A,B,C.

Explanation: Just got it right on Edge 2020

3 0
3 years ago
If a sample of nitrogen monoxide occupies 268.0 L of space at STP, how many moles of nitrogen monoxide are
kow [346]

Answer:

1m×268.0L/22.4L=11.9m

Explanation:

there are 11.9 moles of nitrogen monoxide are present

8 0
2 years ago
Select all of the following equations that represent an exothermic reaction.
skelet666 [1.2K]
Exothermic reactions:

1)  release heat to the surroundings

2) the change of enthalpy, ΔH, is negative: ΔH < 0

3) the temperature of the system increases

With that you can conclude about every equation given:

<span>NH3(g) + 12.0 kcal → ½N2(g) + 3/2 H2(g) : is not exothermic because heat in the side of the reactants means that heat is being used, not released.

C(graphite) → C(diamond), ΔH = - 0.45 kcal : is exothermic because ΔH is negative

C + 2S → CS2, ΔH = 27,550 cal: is not exothermic because ΔH is positive

CH4 + 2O2 → CO2 + 2H2O + 212,800 cal : is exothermic because heat appears as a product of the reaction, which means that it is released.

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3 0
3 years ago
An experimenter places a piece of solid metal weighing 255g into a graduated cylinder which she then fills with mercury. After w
damaskus [11]

Answer: the density of the solid metal is 22.5176 g/cm

Explanation:

Given that;

mass of solid metal = 255 g

the cylinder and its contents weigh 101g less than before

also given that density of mercury = 13.6 g/cm³    

Volume of the solid metal = volume of mercury which was absent in the first weighing

so let volume = Vcm³

Mass of mercury which was absent in the first weighing = density × volume

= 13.6 g/cm³  × Vcm³ = 13.6V g

now since the cylinder and its contents weigh 101g less than before,

it means the difference in mass between the solid and metal and the mass of mercury is equal to 101 g

so

255 - 13.6V g = 101g

13.6V g = 255 g - 101 g

13.6V  = 154

V = 154 /  13.6

V = 11.3245 cm³

Now Density of solid metal will be;

⇒ mass / volume

= 255 / 11.3245

= 22.5176 g/cm

Therefore, the density of the solid metal is 22.5176 g/cm

7 0
3 years ago
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