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Svetllana [295]
2 years ago
14

Question 3 (1 point)

Chemistry
2 answers:
artcher [175]2 years ago
8 0

Answer:

False

Explanation:

irina1246 [14]2 years ago
4 0

false

Explanation:

i took the test

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The chemical formula of lead sulfide tells you that it contains<br>​
ra1l [238]

Answer:

sulfur oxygen

Explanation:

because its contain ide

7 0
3 years ago
A race car is driven by a professional driver at 99 . What is this speed in and ? 1 mile = 1.61 kilometers 1 hour = 60 minutes E
slavikrds [6]

Answer: The speed is equivalent to <u>159.39 kilometers per hour </u>or <u>2.65 kilometers per minute.</u>

Explanation:

Given, The speed of a race car = 99 miles/ hour

To convert the speed into  kilometers per hour and kilometers per minute

Since   1 mile = 1.61 kilometers

So, Speed of car = (99 ) x (1.61 )

= 159.39 kilometers per hour.

Also, 1 hour = 60 minutes

Then, Speed of car = (159.39) ÷60

= 2.6565≈2.65 kilometer per minute.

Hence, the speed is equivalent to <u>159.39 kilometers per hour </u>or <u>2.65 kilometers per minute.</u>

4 0
3 years ago
Suggest why it might be difficult and dangerous to test sodium for electrical conductivity?​
lukranit [14]

Answer:

It might cause fire or extreme smoke.

Explanation:

8 0
2 years ago
Se dispone de 100 mL de una disolución 0.15M de hidróxido de
makkiz [27]

Answer:

pH = 13.18

Explanation:

pOH = -log[OH-] = -log(0.15) = 0.82

pH + pOH = 14

pH = 14 - 0.82 = 13.18

3 0
2 years ago
a set of pulleys is used to lift a piano weighing 1,000 netwons. the piano is lifted 3 meters in 60 seconds. How much power is u
DENIUS [597]

P = W/t

P = F.s/t

P = 1000.3/60

P = 50 watt

6 0
2 years ago
Read 2 more answers
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