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sp2606 [1]
3 years ago
10

The area of a rectangle with sides measuring 1 × 10ª cm and 5 x 10-1 cm

Chemistry
1 answer:
Levart [38]3 years ago
3 0

Explanation:

........................

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docker41 [41]

Answer:

letter b by replicating experiments

Explanation:

8 0
2 years ago
How many joules of energy would it take to raise the temperature of 2.5 grams of magnesium metal from
garik1379 [7]

Answer:

Q = 63.75J

Explanation:

Mass = 2.5g

Initial temperature (T1) = 25°C

Final temperature (T2) = 50°C

Specific heat capacity of Mg = 1.020J/g°C

Heat energy = ?

Heat Energy (Q) = mc∇T

Q = heat energy

M = mass of substance

C = specific heat capacity of substance

∇T = change in temperature = T2 - T1

Q = mc∇T

Q = mc(T2 - T1)

Q = 2.5 × 1.020 × (50 - 25)

Q = 2.55 × 25

Q = 63.75J

The heat energy required to raise magnesium metal from 25°C to 50°C is 63.75J

4 0
3 years ago
Help please I need it bad
natta225 [31]
= 9.1 × 10^6
(scientific notation)

= 9.1e6
(scientific e notation)

= 9.1 × 10^6
(engineering notation)
(million; prefix mega- (M))

= 9100000
<span>(real number)</span>
5 0
3 years ago
PLEASE HELP!! What is the chemical equation for soot?
tiny-mole [99]

Answer:

C3H

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Initially these primary suit particles have roughly the composition and each is actually made up of several thousand carbon Adams the empirical formula suggest cycle is highly unders and unsaturated made structural element

3 0
3 years ago
Read 2 more answers
1 cg is equal to (2 points) Select one: a. 103 hg. b. 103 g. c. 10-2 mg. d. 10-2 g.
Semmy [17]
The answer should be D) 10-2 g.
3 0
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