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Solnce55 [7]
4 years ago
13

Comparing Mirrors

Chemistry
2 answers:
mote1985 [20]4 years ago
4 0

Answer:

convex

convex

concave

plane

Explanation:

solniwko [45]4 years ago
4 0

Answer:

convex

convex

concave

plane

Explanation:

I just know me smart

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A piece of unknown metal with mass 68.6 g is heated to an initial temperature of 100 °C and dropped into 84 g of water (with an
laila [671]

The specific heat of metal is c = 3.433 J/g*⁰C.

<h3>Further explanation</h3>

Given

mass of metal = 68.6 g

t metal = 100 °C

mass water = 84 g

t water = 20 °C

final temperature = 52.1  °C

Required

The specific heat

Solution

Heat can be formulated :

Q = m.c.Δt

Q absorbed by water = Q released by metal

84 x 4.184 x (52.1-20)=68.6 x c x (100-52.1)

11281.738=3285.94 x c

c = 3.433 J/g*⁰C.

7 0
3 years ago
Is my answer correct?
ioda
Yes you are right .. X is undergoing a change from solid to gas at point E
7 0
3 years ago
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A gas has a volume of 10.0 liters at 373K and a pressure of 5.0atm, what volume will the gas occupy at STP?
zhannawk [14.2K]
Use ideal gas law PV=nRT
Convert 5.00 atm to kPa since units must be relative to gas constant (r).
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Now plug in (506.5kPa)(10.0L)=n(8.31 L•atm/mol•K)(373K)
Solve for n (moles) to get approximately 1.634 mol. Now use dimensional analysis (1.634mol/1)(22.4L/1mol) = 36.6L
4 0
4 years ago
Are specimens the best source of DNA
xxTIMURxx [149]

no the best source is blood.

5 0
4 years ago
A scientist is measuring the rate of an enzyme-catalyzed reaction that produces a red-colored product. as the solution containin
slavikrds [6]
The answer would be A will increase and T <span>will decrease.

The product of this reaction emits red light because it absorbs green and blue light. As the reaction occurs, the concentration of the product increase. This will makes absorbance of green and blue light increases and the solution will become redder.</span>
8 0
3 years ago
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