3 years ago

Help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Chemistry

2 answers:

Alina [70]3 years ago

6 0

Answer:

A. Sorry if wrong, but if i'm right can you mark brailniest pls?

tangare [24]3 years ago

4 0

Answer:

Explanation:

You might be interested in

3. What agency tracks the activities of typhoon that enters PAR?

SOVA2 [1]

Answer:

D. Philippine Atmospheric, Geophysical and Astronomical Services

Administration (PAGASA)

Explanation:

4.C. 62.0 kph

5 0

2 years ago

Formation of water: 2H2 + 1 O2 --> 2H2O

noname [10]

Answer:

2.2 moles H2O

Explanation:

$35g O_2 \mbox{ \cdot }\frac{1mol}{32g/mol} \mbox{ \cdot }\frac{2mol H_2O}{1mol O_2}= 2.1875$ , which rounds to about 2.2

7 0

1 year ago

Which property of a wave do you think changes the most as the wave approaches the shore?

solniwko [45]

The speed and wavelength changes as a waves travels to a different depth. Slower and bigger amplitudes in shallower depths. Freq does not change

6 0

2 years ago

Find the percent composition of water in barium chloride dihydrate. Round your answer to the

nadya68 [22]

Answer: its 15 its none of those

Explanation:

7 0

1 year ago

How long is 5 half lives if the half life is 2.6 hours? Remember to round to the correct number of significant figures and use u

Dmitry [639]

Answer:

$\Delta t = 13\,h$

Explanation:

Half time is period required to desintegrating the half of the initial number of atoms. Then, the total time is:

$\Delta t = 5\cdot (2.6\,h)$

$\Delta t = 13\,h$

3 0

2 years ago