All categories

3 years ago

What are two ways that plants use energy from food.

Chemistry

2 answers:

7nadin3 [17]3 years ago

8 0

<h2>Answer:</h2>

''Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose.','.

Dovator [93]3 years ago

6 0

Answer:

the sun to change water and carbon dioxide into a sugar called glucose.

Explanation:

You might be interested in

Explain how scientists use geologic time to determine the age of land forms.

valentina_108 [34]

I am sorry i wish i could help you but i dont know the answer either.

5 0

3 years ago

A cylinder of oxygen gas has a volume of 10.0 liters at 7.66 atm and 27.0oC. The cylinder is heated until the pressure is 428 kP

iris [78.8K]

Answer:

Explanation:

428 x 10³ Pa = 4.28 x 10⁵ Pa = 4.28 atm

We shall use the gas equation

P₁V₁ / T₁ = P₂V₂ / T₂

7.66 x 10 / ( 273 + 27 ) = 4.28 x 30 / T₂

.255 = 128.4 / T₂

T₂ = 503.53

= 503.53 - 273 = 230.53⁰C .

6 0

3 years ago

When's the moon at its brightest? (QUICK!)

erastovalidia [21]

Answer:

around march

Explanation:

5 0

3 years ago

Read 2 more answers

Find the oxidation number of hydrogen in HNC.

dem82 [27]

The oxidation number of hydrogen in HNC is +1.

In fact, the oxidation number of hydrogen in any compound will generally be +1; a major exception would be in the case of metal hydrides (e.g., NaH), where the hydrogen exists as a negative ion.

8 0

3 years ago

Read 2 more answers

How many moles would you need to have 7.85 x 10^22 molecules of ammonia (NH3).

RSB [31]

<h3>Answer:</h3>

0.130 moles NH₃

<h3>General Formulas and Concepts:</h3>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<u>Stoichiometry</u>

Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

[Given] 7.85 × 10²² molecules NH₃

[Solve] moles NH₃

<u>Step 2: Identify Conversions</u>

Avogadro's Number

<u>Step 3: Convert</u>

[DA] Set up: $\displaystyle 7.85 \cdot 10^{22} \ molecules \ NH_3(\frac{1 \ mol \ NH_3}{6.022 \cdot 10^{23} \ molecules \ NH_3})$
[DA] Multiply/Divide [Cancel out units]: $\displaystyle 0.130355 \ moles \ NH_3$

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

0.130355 moles NH₃ ≈ 0.130 moles NH₃

3 0

3 years ago