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adell [148]
3 years ago
11

What is the name of CaCl2 7H2o

Chemistry
1 answer:
Tanya [424]3 years ago
6 0

Answer:

calcium chloride dihydrate

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What is the mass of a 0.5 mol sample of C2H6?
Eddi Din [679]

Answer: 30.08 g/mol

Explanation:

C2= 12.01 H6=1.01

12.01(2) + 1.01(6) =

24.02 + 6.06 =

30.08 g/mol

3 0
3 years ago
Write chemical equation for the following reactions. Indicate physical states and write net ionic equations. If no reaction indi
iren [92.7K]

There is no reaction.

<em>Molecular equation :</em>

K₂CO₃(aq) + 2NH₄Cl(aq) ⟶ 2KCl(aq) + (NH₄)₂CO₃(aq)

<em>Ionic equation :</em>

2K⁺(aq) + CO₃²⁻(aq) + 2NH₄⁺(aq) +2Cl⁻(aq) ⟶ 2K⁺(aq) + 2Cl⁻(aq) + 2NH₄⁺(aq) + CO₃²⁻(aq)

<em>Net ionic equation :</em>

Cancel all ions that appear on both sides of the reaction arrow (underlined).

<u>2K⁺(aq)</u> + <u>CO₃²⁻(aq)</u> + <u>2NH₄⁺(aq</u>) +<u>2Cl⁻(aq)</u> ⟶ <u>2K⁺(aq)</u> + <u>2Cl⁻(aq</u>) + <u>2NH₄⁺(aq)</u> + <u>CO₃²⁻(aq)</u>

<em>All ions cancel</em>. There is no net ionic equation.

7 0
4 years ago
In what month does winter begin in the southern hemisphere
Katyanochek1 [597]

In the Southern Hemisphere this would be around June 20 and culminates on September 22.

7 0
3 years ago
Read 2 more answers
Calculate the mass (in g) of 2.1 x 1024 atoms of W.
Monica [59]
Atomic mass W = 183.84 u.m.a

183.84 g ----------- 6.02x10²⁴ atoms
?? g ---------------- 2.1x10²⁴ atoms

2.1x10²⁴ x 183.84 / 6.02x10²⁴ =

3.860x10²⁶ / 6.02x10²⁴ = 641.30 g

hope this helps!
4 0
3 years ago
If a bike travels 23m at constant speed 5289s what is the bikes speed?
frutty [35]

Answer:

0.004 m/s

Explanation:

Given data:

Distance traveled = 23 m

Time taken = 5289 s

Speed of bike = ?

Solution:

Formula:

speed = distance / time

b y putting values,

speed = 23 m/ 5289 s

speed = 0.004 m/s

4 0
3 years ago
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